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WO1993009072A1 - Method for increasing maize yields and leaf-absorbed substance for implementing same - Google Patents

Method for increasing maize yields and leaf-absorbed substance for implementing same Download PDF

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Publication number
WO1993009072A1
WO1993009072A1 PCT/BE1992/000046 BE9200046W WO9309072A1 WO 1993009072 A1 WO1993009072 A1 WO 1993009072A1 BE 9200046 W BE9200046 W BE 9200046W WO 9309072 A1 WO9309072 A1 WO 9309072A1
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Prior art keywords
leaves
product
stage
amino acids
leaf
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Ceased
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PCT/BE1992/000046
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French (fr)
Inventor
Joseph Guislain Goffin
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F1/00—Fertilisers made from animal corpses, or parts thereof
    • C05F1/005—Fertilisers made from animal corpses, or parts thereof from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin

Definitions

  • the present invention relates to a process for increasing the yield of corn by applying a foliar absorption product based on soluble protein materials as well as to the foliar sorption product for implementing said process.
  • foliar absorption products based on soluble protein materials as foliar fertilizers on plants, such as sugar beet or potato or on cereals, such as wheat, barley or oats.
  • No serious study has ever shown that an appreciable increase in maize yield can be obtained with very small quantities of products of this type exclusively when applied at an extremely precise stage in the development of the plant. But.
  • the stage of application of the foliar product depends on the total number of leaves of the corn plant.
  • the foliar absorption product consists of a hydrolyzate of protein materials of animal origin and, advantageously, comprises approximately 15% by weight of essential amino acids, free and approximately 85 % by weight of a mixture of soluble peptides and polypeptides.
  • this leaf absorption product comprises the twenty essential amino acids and the alanine, glycine and proline preferably constitute at least 50% by weight of these essential amino acids.
  • the product is applied on the basis of 1.25 kg of protein dry matter in 500 liters of water per hectare.
  • the application of the foliar absorption product is carried out by spraying.
  • the invention also provides the foliar absorption product used in this way.
  • the protein materials are preferably of animal origin and are advantageously constituted by a hydrolyzate of protein materials. of animal origin.
  • the protein hydrolyzate, liquid used according to the invention in fact results from the hydrolysis of proteins of animal origin, followed by the elimination of the excess of reagents used for this purpose and of part of the mineral salts which 'they contain, and from a concentration up to a dry substance content of approximately 60 to 63%.
  • the hydrolysis of proteinaceous materials is continued until the release of at least 15% w / w in free essential amino acids and of the remainder in fully soluble peptides and polypeptides.
  • the protein hydrolyzate obtained in this way comprises about 15% by weight of essential, free amino acids and about 85% by weight of a mixture of soluble peptides and polypeptides.
  • the hydrolyzate will preferably contain the twenty essential amino acids, namely: aspartic acid, asparagine, threonine, serine, glutamic acid, proline, glycine, alanine, valine, the cysteine, tryptophan, methionine, homocysteine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine and arginine.
  • alanine, glycine and proline together constitute at least 50% by weight of these essential amino acids.
  • the leaf absorption product according to the invention is advantageously applied by spraying after dilution with water.
  • the product is sprayed on the basis of 1 to 1.5 kg of protein dry matter in 20 to 1000 liters of water per hectare and, preferably, on the basis of 1.25 kg of protein dry matter in 500 liters of water per hectare.
  • Example 1 Two non-limiting examples of application of the method of the invention are given below.
  • Example 1 Two non-limiting examples of application of the method of the invention are given below.
  • Control plots and plots treated by spraying were prepared using the product of the invention (protein hydrolyzate as defined above) at a dose of 1.25 kg of protein dry matter in 500 liters of water per hectare , containing the same number of maize plants, half of the treated plots having been at the stage of 6 to 7 visible leaves and the other half at the stage of 9 visible leaves.
  • the plots, four in number, had an overall area in each case of 12.96 m 2 .
  • Table I Table I
  • the processing conditions used in this example are the same as those used in Example 1.
  • the ratings assigned to the treated crops were compared to the rating 100 assigned to the crops. witnesses. These ratings actually represent the quotient of the treated crop over the untreated crop for the same area unit.
  • only the corn plants treated according to the invention that is to say at the stage of 4 to 7 visible leaves, give a significant increase in the grain harvest and the fact of treating twice the corn at a later stage (treatment on 4 and 11 July) does not give rise to any improvement in yield.
  • the best results have been obtained by applying the product at the stage of 4 visible or visible leaves and 3 to 5 non-visible leaves.
  • the variety studied developed under the vegetation conditions encountered a total number of 13 to 14 leaves.
  • the spike generally developed in the axil of the 7th leaf. It is important to intervene at the time of the initiation of the flower bud, in this case, at the time closest to the differentiation of the leaf and the initiation of the ear, that is to say, in the experience reported, when the 7th or 8th sheet is formed (4 sheets visible or visible, 3 to 4 not visible).
  • the treatment when the culture conditions allow the formation of 15 to 17 leaves, the treatment should be carried out at the stage of 5 visible leaves, from 18 to 20 leaves, at the stage of 6 visible leaves and more than 20 leaves, at the stage of 7 visible leaves.
  • the stage of application of the leaf product therefore advantageously depends on the total number of leaves of the corn plant.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fertilizers (AREA)

Abstract

A method for increasing maize yields by applying a soluble protein material-based and leaf-absorbed substance at a time when the maize plant has 4-7 visible leaves, 1-1.5 kg of dry protein material being diluted with 20-1000 litres of water per hectare. The time at which the substance is applied preferably depends on the total number of leaves on the maize plant. A leaf-absorbed substance for implementing the method is also provided.

Description

"Procédé pour augmenter le rendement en maïs et produit d'absorption foliaire pour sa mise en oeuyre" "Process to increase the yield of corn and foliar absorption product for its implementation"

La présente invention est relative à un procédé pour augmenter le rendement en maïs par applica- tion d'un produit d'absorption foliaire à base de matières protéiques solubles ainsi qu'au produit d'ab¬ sorption foliaire pour la mise en oeuvre dudit procédé. Il est connu actuellement d'utiliser des produits d'absorption foliaire à base de matières protéiques solubles comme engrais foliaires sur des plantes, telles que la betterave sucrière ou la pomme de terre ou sur des céréales, telles que le froment, l'orge ou l'avoine. Aucune étude sérieuse n'a jamais permis de montrer que l'on pouvait obtenir une augmentation de rendement sensible en maïs au moyen de très faibles quantités de produits de ce type exclusivement lors de leur application à un stade extrêmement précis du développement de la plante de maïs. D'autre part, il est bien connu que le développement biologique du maïs, qui est une plante à floraisons mâles et femelles séparées, est totalement différent de celui des céréales à fleurs hermaphrodites du type froment, avoine et orge, et ne peut donc être comparé à celui de ces dernières.The present invention relates to a process for increasing the yield of corn by applying a foliar absorption product based on soluble protein materials as well as to the foliar sorption product for implementing said process. . It is currently known to use foliar absorption products based on soluble protein materials as foliar fertilizers on plants, such as sugar beet or potato or on cereals, such as wheat, barley or oats. No serious study has ever shown that an appreciable increase in maize yield can be obtained with very small quantities of products of this type exclusively when applied at an extremely precise stage in the development of the plant. But. On the other hand, it is well known that the biological development of corn, which is a plant with separate male and female flowers, is completely different from that of hermaphrodite flower cereals of the wheat, oats and barley type, and therefore cannot be compared to that of the latter.

C'est ainsi qu'on a constaté, suivant l'invention, 'd'une façon surprenante, qu'en appliquant un produit d'absorption foliaire à base de matières protéiques solubles sur le maïs au stade de 4 à 7 feuilles apparentes de la plante, après l'avoir dilué avec de 1'eau sur la base de 1 à 1,5 kg de matière sèche protéique dans 20 à 1000 litres d'eau par hectare, on augmente sensiblement le rendement de celui-ci. Avantageusement, le stade d'application du produit foliaire dépend du nombre total de feuilles de la plante de maïs.Thus it has been found, according to the invention, 'in a surprising way, that by applying a foliar absorption product based on soluble protein materials on corn at the stage of 4 to 7 visible leaves of the plant, after having diluted it with water on the basis of 1 to 1.5 kg of protein dry matter in 20 to 1000 liters of water per hectare, the yield thereof is appreciably increased. Advantageously, the stage of application of the foliar product depends on the total number of leaves of the corn plant.

Suivant une forme de réalisation de l'inven- tion, le produit d'absorption foliaire est constitué par un hydrolysat de matières protéiques d'origine animale et, avantageusement, comprend environ 15 % en poids d'acides aminés essentiels, libres et environ 85 % en poids d'un mélange de peptides et polypeptides solubles. Suivant une forme de réalisation avantageuse de l'invention, ce produit d'absorption foliaire com¬ porte les vingt acides aminés essentiels et l'alanine, la glycine et la proline constituent de préférence au moins 50 % en poids d ces acides aminés essentiels. Suivant un mode de réalisation de 1'inven¬ tion, on applique le produit sur la base de 1,25 kg de matière sèche protéique dans 500 litres d'eau par hectare.According to one embodiment of the invention, the foliar absorption product consists of a hydrolyzate of protein materials of animal origin and, advantageously, comprises approximately 15% by weight of essential amino acids, free and approximately 85 % by weight of a mixture of soluble peptides and polypeptides. According to an advantageous embodiment of the invention, this leaf absorption product comprises the twenty essential amino acids and the alanine, glycine and proline preferably constitute at least 50% by weight of these essential amino acids. According to one embodiment of the invention, the product is applied on the basis of 1.25 kg of protein dry matter in 500 liters of water per hectare.

Suivant un mode de réalisation avantageux de l'invention, l'application du produit d'absorption foliaire se fait par pulvérisation.According to an advantageous embodiment of the invention, the application of the foliar absorption product is carried out by spraying.

L'invention prévoit également le produit d'absorption foliaire utilisé de la sorte.The invention also provides the foliar absorption product used in this way.

D'autres détails et particularités de l'invention ressortiront de la description ci-après, donnée à titre d'exemple non limitatif, de quelques formes particulières de l'objet de l'invention.Other details and particularities of the invention will emerge from the description below, given by way of nonlimiting example, of some particular forms of the subject of the invention.

Dans la biologie du maïs, on constate rapidement après l'émergence du cotylédon, la formation d'un organe aérien comprenant un bourgeon central entouré d'ébauches de feuilles à l'insertion desquelles se différencient des bourgeons auxiliaires. La plante pousse en hauteur en développant des feuilles extérieu¬ res et des ébauches de feuilles internes entourant le bourgeon central. Le bourgeon central en se développant donne naissance à la panicule mâle. Le plus souvent, un seul parfois deux bourgeons auxiliaires des feuilles évolueront en fleur femelle.In the biology of corn, we quickly notice after the emergence of the cotyledon, the formation of an aerial organ comprising a central bud surrounded by leaf blanks at the insertion of which differentiate from auxiliary buds. The plant grows tall by developing external leaves and internal leaf blanks surrounding the central bud. The developing central bud gives birth to the male panicle. Most often, a sometimes only two auxiliary leaf buds will develop into female flowers.

On a constaté, suivant l'invention, qu'en appliquant un produit d'absorption foliaire à base de matières protéiques solubles sur la plante de maïs au stade de 4 à 7 feuilles apparentes, ce qui correspond à 4 à 5 feuilles internes, après l'avoir dilué avec de l'eau sur la base de 1 à 1,5 kg de matière sèche protéi¬ que dans 20 à 1000 litres d'eau par hectare, et de préférence sur la base de 1,25 kg de matière sèche protéique dans 500 litres d'eau par hectare, on obtient une augmentation de rendement en grains sensible, pouvant atteindre 4 à 10 %.It has been found, according to the invention, that by applying a foliar absorption product based on soluble protein materials on the corn plant at the stage of 4 to 7 visible leaves, which corresponds to 4 to 5 internal leaves, after having diluted it with water on the basis of 1 to 1.5 kg of dry matter protei¬ only in 20 to 1000 liters of water per hectare, and preferably on the basis of 1.25 kg of dry matter protein in 500 liters of water per hectare, we obtain a significant increase in grain yield, up to 4 to 10%.

Suivant l'invention, bien que le produit appliqué soit généralement à base de matières protéiques solubles, d'origine animale et/ou végétale, les matières protéiques sont de préférence d'origine animale et sont avantageusement constituées par un hydrolysat de matiè¬ res protéiques d'origine animale. L'hydrolysat de protéines, liquide utilisé suivant l'invention résulte en fait de l'hydrolyse de protéines d'origine animale, suivie de l'élimination de l'excès des réactifs utilisés à cet effet et d'une partie des sels minéraux qu'elles contiennent, et d'une concentration jusqu'à un contenu de substance sèche d'environ 60 à 63 %. L'hydrolyse des matières protéiques est poursuivie jusqu'à la libération d'au moins 15 % en poids/poids en acides aminés essen¬ tiels libres et du restant en peptides et polypeptides totalement solubles. En fait, l'hydrolysat de protéines obtenu de cette manière comprend environ 15 % en poids d'acides aminés essentiels, libres et environ 85 % en poids d'un mélange de peptides et polypeptides solubles. L'hydrolysat comportera de préférence les vingt acides aminés essentiels, à savoir : l'acide aspartique, l'asparagine, la thréonine, la serine, l'acide glutami- que, la proline, la glycine, l'alanine, la valine, la cystêine, le tryptophane, la méthionine, l'homocystéine, l'isoleucine, la leucine, la tyrosine, la phénylalanine, la lysine, l'histidine et l'arginine. Avantageusement, l'alanine, la glycine et la proline constituent ensemble au moins 50 % en poids de ces acides aminés essentiels.According to the invention, although the product applied is generally based on soluble protein materials, of animal and / or vegetable origin, the protein materials are preferably of animal origin and are advantageously constituted by a hydrolyzate of protein materials. of animal origin. The protein hydrolyzate, liquid used according to the invention in fact results from the hydrolysis of proteins of animal origin, followed by the elimination of the excess of reagents used for this purpose and of part of the mineral salts which 'they contain, and from a concentration up to a dry substance content of approximately 60 to 63%. The hydrolysis of proteinaceous materials is continued until the release of at least 15% w / w in free essential amino acids and of the remainder in fully soluble peptides and polypeptides. In fact, the protein hydrolyzate obtained in this way comprises about 15% by weight of essential, free amino acids and about 85% by weight of a mixture of soluble peptides and polypeptides. The hydrolyzate will preferably contain the twenty essential amino acids, namely: aspartic acid, asparagine, threonine, serine, glutamic acid, proline, glycine, alanine, valine, the cysteine, tryptophan, methionine, homocysteine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine and arginine. Advantageously, alanine, glycine and proline together constitute at least 50% by weight of these essential amino acids.

Le produit d'absorption foliaire suivant l'invention est avantageusement appliqué par pulvérisa¬ tion après dilution avec l'eau. Pour se faire, on pulvérise le produit sur la base de 1 à 1,5 kg de matière sèche protéique dans 20 à 1000 litres d'eau par hectare et, de préférence, sur la base de 1,25 kg de matière sèche protéique dans 500 litres d'eau par hectare. On peut appliquer par pulvérisation en même temps que le produit, foliaire, un produit chimique compatible avec celui-ci et-la plante de maïs, tel que, par exemple, un engrais, un herbicide, un insecticide ou un mélange de ces produits.The leaf absorption product according to the invention is advantageously applied by spraying after dilution with water. To do this, the product is sprayed on the basis of 1 to 1.5 kg of protein dry matter in 20 to 1000 liters of water per hectare and, preferably, on the basis of 1.25 kg of protein dry matter in 500 liters of water per hectare. Can be applied by spraying at the same time as the product, foliar, a chemical compatible with it and the corn plant, such as, for example, a fertilizer, a herbicide, an insecticide or a mixture of these products.

On donne ci-après deux exemples non limita¬ tifs d'application du procédé de l'invention. Exemple 1Two non-limiting examples of application of the method of the invention are given below. Example 1

On a préparé des parcelles témoins et des parcelles traitées par pulvérisation au moyen du produit de l'invention (hydrolysat protéique tel que défini ci- dessus) à la dose de 1,25 kg de matière sèche protéique dans 500 litres d'eau par hectare, contenant le même nombre de plants de maïs, la moitié des parcelles traitées l'ayant été au stade de 6 à 7 feuilles apparen¬ tes et l'autre moitié au stade de 9 feuilles apparentes. Les parcelles, au nombre de quatre, avaient une superfi- cie globale dans chaque cas de 12,96 m2. Les résultats obtenus ont été réunis dans le Tableau I ci-après. Tableau IControl plots and plots treated by spraying were prepared using the product of the invention (protein hydrolyzate as defined above) at a dose of 1.25 kg of protein dry matter in 500 liters of water per hectare , containing the same number of maize plants, half of the treated plots having been at the stage of 6 to 7 visible leaves and the other half at the stage of 9 visible leaves. The plots, four in number, had an overall area in each case of 12.96 m 2 . The results obtained are collated in Table I below. Table I

Figure imgf000007_0001
Figure imgf000007_0001

D'après ce Tableau, il apparaît clairement que le rendement en grains a été augmenté d'une façon sensible lorsque l'on traite les plants de maïs par l'hydrolysat de protéines au stade de 6 à 7 feuilles apparentes.From this Table, it is clear that the grain yield has been increased appreciably when the corn plants are treated with the protein hydrolyzate at the 6 to 7 visible leaf stage.

Exemple 2 Tableau IIExample 2 Table II

Figure imgf000007_0002
Figure imgf000007_0002

Les conditions de traitement utilisées dans cet exemple sont les mêmes que celles utilisées dans l'Exemple 1. Les cotes attribuées aux récoltes traitées ont été comparées à la cote 100 attribuée aux récoltes témoins. Ces cotes représentent en fait le quotient de la récolte traitée sur la récolte non traitée pour une même unité de surface. Comme on peut le voir, seuls les plants de maïs traités suivant l'invention, c'est-à-dire au stade de 4 à 7 feuilles apparentes, donnent une augmentation sensible de la récolte en grains et le fait de traiter deux fois le maïs à un stade ultérieur (traitement des 4 et 11 juillet) ne donne lieu à aucune amélioration du rendement. On notera en outre que les meilleurs résul¬ tats ont été obtenus par application du produit au stade de 4 feuilles apparentes ou visibles et 3 à 5 feuilles non visibles. La variété étudiée a développé dans les conditions de végétation rencontrées un nombre total de 13 à 14 feuilles. L'épi s'est développé généralement à l'aisselle de la 7ème feuille. Il est important d'inter¬ venir au moment de l'initiation du bourgeon floral, en l'occurrence, au moment le plus proche de la différen¬ ciation de la feuille et de l'initiation de l'épi, c'est-à-dire, dans l'expérience rapportée, lorsque la 7ème ou la 8ème feuille est formée (4 feuilles apparen¬ tes ou visibles, 3 à 4 non visibles) .The processing conditions used in this example are the same as those used in Example 1. The ratings assigned to the treated crops were compared to the rating 100 assigned to the crops. witnesses. These ratings actually represent the quotient of the treated crop over the untreated crop for the same area unit. As can be seen, only the corn plants treated according to the invention, that is to say at the stage of 4 to 7 visible leaves, give a significant increase in the grain harvest and the fact of treating twice the corn at a later stage (treatment on 4 and 11 July) does not give rise to any improvement in yield. It will also be noted that the best results have been obtained by applying the product at the stage of 4 visible or visible leaves and 3 to 5 non-visible leaves. The variety studied developed under the vegetation conditions encountered a total number of 13 to 14 leaves. The spike generally developed in the axil of the 7th leaf. It is important to intervene at the time of the initiation of the flower bud, in this case, at the time closest to the differentiation of the leaf and the initiation of the ear, that is to say, in the experience reported, when the 7th or 8th sheet is formed (4 sheets visible or visible, 3 to 4 not visible).

Suivant l'invention, lorsque les conditions de culture permettent la formation de 15 à 17 feuilles, le traitement devrait se faire au stade de 5 feuilles apparentes, de 18 à 20 feuilles, au stade de 6 feuilles apparentes et de plus de 20 feuilles, au stade de 7 feuilles apparentes. Le stade d'application du produit foliaire dépend donc avantageusement du nombre total de feuilles de la plante de maïs.According to the invention, when the culture conditions allow the formation of 15 to 17 leaves, the treatment should be carried out at the stage of 5 visible leaves, from 18 to 20 leaves, at the stage of 6 visible leaves and more than 20 leaves, at the stage of 7 visible leaves. The stage of application of the leaf product therefore advantageously depends on the total number of leaves of the corn plant.

Il est bien entendu que la présente inven¬ tion n'est en aucune façon limitée aux formes de réali¬ sation décrites et que bien des modifications peuvent être envisagées sans sortir du cadre du présent brevet. It is understood that the present inven¬ tion is in no way limited to the embodiments described and that many modifications can be envisaged without departing from the scope of this patent.

Claims

REVENDICATIONS 1. Procédé pour augmenter le rendement en maïs par application d'un produit d'absorption foliaire à base de matières protéiques solubles, caractérisé en ce qu'on applique ledit produit sur le maïs au stade de 4 à 7 feuilles apparentes de la plante, après l'avoir dilué avec de l'eau sur la base de 1 à 1,5 kg de matière sèche protéique dans 20 à 1000 litres d'eau par hectare.1. Method for increasing the yield of corn by applying a foliar absorption product based on soluble protein materials, characterized in that the said product is applied to the corn at the stage of 4 to 7 visible leaves of the plant, after having diluted it with water on the basis of 1 to 1.5 kg of protein dry matter in 20 to 1000 liters of water per hectare. 2. Procédé suivant la revendication 1, caractérisé en ce que le stade d'application du produit d'absorption foliaire dépend du nombre total de feuilles de la plante de maïs.2. Method according to claim 1, characterized in that the stage of application of the foliar absorption product depends on the total number of leaves of the corn plant. 3. Procédé suivant la revendication 2, caractérisé en ce que. la plante de maïs développe un nombre total de 13 à 14 feuilles et en ce que l'applica¬ tion du produit susdit se fait au stade de la quatrième feuille apparente.3. Method according to claim 2, characterized in that. the corn plant develops a total number of 13 to 14 leaves and in that the above product is applied at the stage of the fourth apparent leaf. 4. Procédé suivant la revendication 2, caractérisé en ce que la plante de maïs développe un nombre total de 15 à 17 feuilles et en ce que l'applica¬ tion du produit susdit se fait au stade de la cinquième feuille apparente.4. Method according to claim 2, characterized in that the corn plant develops a total number of 15 to 17 leaves and in that the applica¬ tion of the above product is done at the stage of the fifth visible leaf. 5. Procédé suivant la revendication 2, caractérisé en ce que la plante de maïs développe un nombre total de 18 à 20 feuilles et en ce que l'applica¬ tion du produit susdit se fait au stade de la sixième feuille apparente.5. Method according to claim 2, characterized in that the corn plant develops a total number of 18 to 20 leaves and in that the applica¬ tion of the above product is done at the stage of the sixth apparent leaf. 6. Procédé suivant la revendication 2, caractérisé en ce que la plante de maïs développe un nombre de plus de 20 feuilles et en ce que l'application du produit susdit se fait au stade de la septième feuille apparente.6. Method according to claim 2, characterized in that the corn plant develops a number of more than 20 leaves and in that the application of the above product is done at the stage of the seventh apparent leaf. 7. Procédé suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que le produit susdit est à base de matières protéiques d'origine animale. 7. Method according to any one of claims 1 to 6, characterized in that the above product is based on protein materials of animal origin. 8. Procédé suivant la revendication 7, caractérisé en ce qu'il est constitué par un hydrolysat de matières protéiques d'origine animale.8. Method according to claim 7, characterized in that it consists of a hydrolyzate of protein materials of animal origin. 9. Procédé suivant la revendication 8, caractérisé en ce que l'hydrolysat comprend environ 15 % en poids d'acide aminés essentiels, libres et environ 85 % en poids d'un mélange de peptides et polypeptides solubles.9. Method according to claim 8, characterized in that the hydrolyzate comprises approximately 15% by weight of essential free amino acids and approximately 85% by weight of a mixture of soluble peptides and polypeptides. 10. Procédé suivant la revendication 9, caractérisé en ce qu'il comporte les vingt acides aminés essentiels.10. Method according to claim 9, characterized in that it comprises the twenty essential amino acids. 11. Procédé suivant la revendication 10, caractérisé en ce que l'alanine, la glycine et la proline constituent au moins 50 % en poids des acides aminés essentiels.11. Method according to claim 10, characterized in that the alanine, glycine and proline constitute at least 50% by weight of the essential amino acids. 12. Procédé suivant l'une quelconque des revendications 1 à 11, caractérisé en ce qu'on applique le produit d'absorption foliaire précité sur la base de 1,25 kg de matière sèche protéique dans 500 litres d'eau par hectare.12. Method according to any one of claims 1 to 11, characterized in that the above-mentioned foliar absorption product is applied on the basis of 1.25 kg of protein dry matter in 500 liters of water per hectare. 13. Procédé suivant l'une quelconque des revendications 1 à 12, caractérisé en ce qu'on applique le produit d'absorption foliaire par pulvérisation.13. Method according to any one of claims 1 to 12, characterized in that the foliar absorption product is applied by spraying. 14. Procédé suivant l'une quelconque des revendications 1 à 13, caractérisé en ce qu'on applique simultanément au produit d'absorption foliaire, au moins un produit chimique compatible choisi dans le groupe comprenant les engrais, les herbicides et les insectici¬ des. 14. Method according to any one of claims 1 to 13, characterized in that simultaneously applied to the foliar absorption product, at least one compatible chemical chosen from the group comprising fertilizers, herbicides and insectici¬ des . 15. Produit d'absorption foliaire pour la mise en oeuvre du procédé suivant l'une quelconque des revendications l à 14, caractérisé en ce qu'il comprend environ 15 en poids d'acides aminés essentiels, libres et environ 85 % en poids d'un mélange de peptides et polypeptides solubles, les vingt acides aminés étant présents et l'alanine, le glycine et la proline consti- tuant ensemble au moins 50 % en poids de ces acides aminés essentiels. 15. Foliar absorption product for implementing the method according to any one of claims l to 14, characterized in that it comprises approximately 15 by weight of essential amino acids, free and approximately 85% by weight of '' a mixture of soluble peptides and polypeptides, the twenty amino acids being present and alanine, glycine and proline constituting together killing at least 50% by weight of these essential amino acids.
PCT/BE1992/000046 1991-10-31 1992-10-29 Method for increasing maize yields and leaf-absorbed substance for implementing same Ceased WO1993009072A1 (en)

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BE9101013A BE1005468A3 (en) 1991-10-31 1991-10-31 Method for increasing yield in maize and product foliar absorption for its implementation.

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FR2722779A1 (en) * 1994-07-21 1996-01-26 Grande Paroisse Sa PROTECTIVE GUARANTOR COMPOSITION AND ITS APPLICATION, PARTICULARLY TO THE FERTILIZATION OF CEREALS
CN102557813A (en) * 2010-12-22 2012-07-11 施可丰化工股份有限公司 Special stable long-acting controlled-release maize fertilizer and application thereof
CN102653491A (en) * 2011-03-04 2012-09-05 施可丰化工股份有限公司 Application of composite synergist into Southern double cropping rice
CN102815992A (en) * 2012-07-31 2012-12-12 马鞍山科邦生态肥有限公司 Special fertilizer for spring maize
CN103483097A (en) * 2013-10-15 2014-01-01 山西省农业科学院农业环境与资源研究所 Fertilizer special for saline-alkali soil corns and preparation method thereof
CN103588545A (en) * 2012-08-16 2014-02-19 邓良辉 Preparation method of slow-release fertilizer containing potassium and ammonium chloride particles

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722779A1 (en) * 1994-07-21 1996-01-26 Grande Paroisse Sa PROTECTIVE GUARANTOR COMPOSITION AND ITS APPLICATION, PARTICULARLY TO THE FERTILIZATION OF CEREALS
US5628810A (en) * 1994-07-21 1997-05-13 Grande-Paroisse S.A. Method and composition for increasing the protein content of grains
CN102557813A (en) * 2010-12-22 2012-07-11 施可丰化工股份有限公司 Special stable long-acting controlled-release maize fertilizer and application thereof
CN102653491A (en) * 2011-03-04 2012-09-05 施可丰化工股份有限公司 Application of composite synergist into Southern double cropping rice
CN102815992A (en) * 2012-07-31 2012-12-12 马鞍山科邦生态肥有限公司 Special fertilizer for spring maize
CN103588545A (en) * 2012-08-16 2014-02-19 邓良辉 Preparation method of slow-release fertilizer containing potassium and ammonium chloride particles
CN103483097A (en) * 2013-10-15 2014-01-01 山西省农业科学院农业环境与资源研究所 Fertilizer special for saline-alkali soil corns and preparation method thereof
CN103483097B (en) * 2013-10-15 2015-05-27 山西省农业科学院农业环境与资源研究所 Fertilizer special for saline-alkali soil corns and preparation method thereof

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