CN103348858B - Bowl body blanket seedling raising method - Google Patents

Abstract

The invention provides a method for raising seedlings of blanket-shaped seedlings in pots. In the method, dextrin made from wheat flour is used as an adhesive to mix in the cooked soil layer, and spread on the upper and lower layers of the starch film with holes. Form a high-strength ligament layer, increase its bonding strength, ensure that the bowl blanket is reliably connected into pieces without cracking during machine planting, and the quality of mechanized seedling planting is significantly improved; the starch film with holes is used, and The rice seeds are sown in the pores of the starch film, so that the root system and bud system of the rice seeds can grow without breaking the starch film, and the germination rate and growth rate of the rice seeds are improved.

Description

Seedling raising method of blanket seedlings in pot

technical field

The invention relates to a method for cultivating rice seedlings, in particular to a method for cultivating blanket-shaped seedlings in pots suitable for machine planting.

Background technique

Because the roots of the blanket-shaped seedlings are seriously damaged during mechanical planting, which affects the growth and development of the seedlings, it is a development trend to replace the blanket-shaped seedlings with the blanket-shaped seedlings in pots for mechanized seedling transplanting. The blanket-shaped seedlings in the bowl are a group of soil-carrying seedlings with a pot on the bottom and a blanket on the top. Although it solves the problem of machine-transplanted seedling roots, it also brings another additional problem, that is, the upper blanket of soil-carrying seedlings. The part is relatively thin, easy to tear and break, and cannot form a complete blanket. The quality of the seedlings on the seedling box cannot be guaranteed, resulting in problems such as missing seedlings, hooking seedlings, and hanging seedlings, which brings serious obstacles to mechanized rice transplanting. The main reason why pot body carpet seedlings cannot be popularized in a large area.

Contents of the invention

The purpose of the present invention is to overcome the thin upper blanket part of blanket-shaped seedlings in the pot body, which is easy to be torn and broken, and cannot form a whole blanket shape, and cannot guarantee the quality of seedlings on the seedling box, resulting in lack of seedlings, hooking up seedlings and Hanging seedlings leads to the disadvantage of poor machine-planted quality.

For realizing above-mentioned purpose of the invention, the technical scheme that the present invention adopts is as follows:

A method for growing seedlings of blanket-shaped seedlings in pots, comprising the following steps:

(1) Lay an organic base in the bowl at the bottom of the seedling tray, and the top of the organic base should be lower than the mouth of the bowl or level with the mouth of the bowl;

(2) laying a mellow soil layer 1 containing an adhesive on the organic base layer, with a thickness of 0.5cm to 1cm, leveling its surface and then lightly compacting it;

(3) laying a porous starch film above the mellow soil layer containing the adhesive;

(4) Sprinkle water on the surface of the mellow soil layer containing the adhesive, and then evenly sow rice seeds in the holes of the starch film with holes. The sowing amount should ensure that there are 1 to 8 grains of rice in each bowl. kind;

(5) laying the mellow soil layer 2 containing adhesive on the porous starch film, with a thickness of 0.5cm to 1cm;

(6) Laying common mellow soil as the top soil above the mellow soil layer 2 containing the adhesive, with a thickness of 0.5cm to 1.5cm, and watering the top soil layer;

(7) Spray the diluted microbial fertilizer once every three days;

(8) Add urea and potassium fertilizer once after germination;

(9) On the seventh day before transplanting, apply "marrying fertilizer" once.

In the step (4), after the rice seeds are sown, the soil pH value should be monitored in real time to keep the soil pH value between 5-6.

The thickness of the starch film with holes in the step (3) is 0.05 mm to 0.5 mm, and each starch film with holes has 25-28 rows of holes, the row spacing is 18-25 mm, and each row has 13-14 holes. The spacing is 18-25mm.

The organic base layer in the step (1) is prepared by using the nutrient solution made of crushed and decomposed beneficial microorganisms as the organic raw material, adding soil, adding nitrogen, phosphorus, potassium, calcium, magnesium and iron elements and mixing them evenly , the weight ratio of organic matter raw materials to soil is 3:1.

The adhesive used in the smelted soil layer 1 containing the adhesive in the step (2) and the smelted soil layer 2 containing the adhesive in the step (5) is wheat flour dextrin, and the adhesive is in The weight proportion in the soil layer to which it belongs is 3-10%. Seedling-strengthening agents, packing agents and fungicides can also be accompanied in the first mellow soil layer containing the adhesive and the second mellow soil layer containing the adhesive.

In the step (4), the rice seeds are subjected to sun-drying, seed selection and disinfection pretreatment before sowing.

In the step (6), the top soil is accompanied by a seedling strengthening agent, a packing agent and a fungicide.

The "marriage fertilizer" in the step (9) is a mixture of chemical fertilizers and microbial organic matter.

The present invention adopts dextrin made from wheat flour as an adhesive and mixes it in the mellow soil layer, and lays it on the upper and lower layers of the starch film with holes to form a higher-strength ligament layer to increase its bonding strength. It ensures that the pot blanket is reliably connected into pieces without cracking during machine planting, and the quality of mechanized seedling planting is significantly improved; the starch film with holes is used, and the rice seeds are sown in the starch film holes, so that the rice seed root system and Bud line development can grow without breaking the starch film, which improves the germination rate and growth rate of rice seeds.

Description of drawings

Fig. 1 is the structural representation of the pot body blanket shape seedling raising tray that the present invention adopts;

Fig. 2 is a schematic diagram of the starch film structure with holes;

Fig. 3 is a schematic diagram of the growth of the seedlings in the blanket-shaped seedling raising tray after successful seedling raising.

In the figure: 1, top soil, 2, mellow soil layer 2 containing adhesive, 3, rice seed, 4, starch film with holes, 5, mellow soil layer 1 containing adhesive, 6, organic matter base layer, 7 , Bowan.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of the pot body blanket shape seedling raising tray that the present invention adopts, at first lay the organic matter base 6 in the bowl 7, the top of the organic base 6 should be lower than the mouth of the bowl or level with the mouth of the bowl. The organic matter base layer 6 is a compound nutrient soil made by mixing evenly after adding nitrogen, phosphorus, potassium, calcium, magnesium and iron elements, using the nutrient solution made of crushed and decomposed beneficial microorganisms as organic raw materials, and adding soil. The weight ratio to soil is 3:1. The use of the organic base layer 6 can improve the low bonding strength of the original substrate, and can effectively improve the activity of microorganisms.

Then paving the mellow soil layer-5 that contains bonding agent with a thickness of 0.5cm～1cm on the organic matter base 6, this soil layer mainly is to add the bonding agent that is made of wheat flour dextrin in the mellow soil, improves soil water application rate The strength of the cake after it is formed into blocks, but it has no harm to rice seeds, microorganisms and soil environment. The weight proportion of the binder in the soil layer is 3-10%. This layer of mellow soil can also be mixed with seedling strengthening agent, packing agent and fungicide.

Then lay the starch film 4 with holes on the mellow soil layer-5 containing the adhesive, and sow rice seeds 3 in the holes of the starch film, and the number of seeds in each hole is 1 to 8 grains. There are 25-28 rows of holes on each starch film 4 with holes, the row spacing is 18-25mm, and each row has 13-14 holes, and the hole spacing is 18-25mm. Sowing the rice seed 3 in the hole of the starch film can make the root system and bud system development of the seed not affected by the film, that is, the buds and roots do not need to break through the starch film to grow up and down. After rice seed 3 is sown, the soil pH value should be monitored in real time to keep the soil pH value between 5 and 6.

After the sowing is completed, laying a mellow soil layer 2 2 containing an adhesive with a thickness of 0.5 cm to 1 cm on the starch film 4 with holes, and laying a mellow soil layer with an adhesive on the starch film 4 respectively. In order to make the three layers interpenetrate and interweave each other, a higher-strength ligament layer is formed to ensure that the bowl blanket will not be broken when planted. Containing the composition and proportion of binder in the mellow soil layer two 2 of adhesive is identical with the mellow soil layer one 5 that contains adhesive, this layer of mellow soil also can be mixed seedling strengthening agent, packing agent and bactericide etc.

Finally, lay the top soil 1 with a thickness of 0.5 cm to 1.5 cm on the mellow soil layer 2 containing the adhesive, lightly compact and sprinkle appropriate water.

Water and fertilizer are applied regularly after the blanket-shaped seedling-raising trays are arranged, and rice seeds 3 are cultivated under certain temperature and soil pH conditions until they grow into seedlings suitable for machine-planting. The soil should be kept at a certain humidity before emergence; when the seedlings are in the stage of two leaves and one heart, the top soil should be relatively dry.

Claims (1)

1. A method for raising seedlings of blanket-shaped seedlings in pots, comprising the steps of drying, seed selection and disinfection pretreatment of rice seeds before sowing, characterized in that: it also includes the following steps: (1) Lay the organic base in the bowl at the bottom of the seedling tray. The top of the organic base should be lower than the mouth of the bowl or level with the mouth of the bowl; Organic raw materials are mixed with soil, and nitrogen, phosphorus, potassium, calcium, magnesium and iron are added and mixed evenly. The weight ratio of organic raw materials to soil is 3:1; (2) Lay the mellow soil layer 1 containing an adhesive on the organic matter base layer, with a thickness of 0.5cm to 1cm, and lightly compact the surface after it is leveled; the adhesive is wheat flour dextrin, and the bonding agent is The weight proportion of the agent in the corresponding soil layer is 3-10%; the mellow soil layer 1 containing the adhesive is accompanied by a seedling strengthening agent, a packing agent and a fungicide; (3) Lay a starch film with holes above the mellow soil layer containing an adhesive; the thickness of the starch film with holes is 0.05mm to 0.5mm, and each starch film with holes has 25-28 rows of holes. The spacing is 18-25mm, each row has 13-14 holes, and the hole spacing is 18-25mm; (4) Sprinkle water on the surface of the mellow soil layer containing the adhesive, and then evenly sow rice seeds in the holes of the starch film with holes. The sowing amount should ensure that there are 1 to 8 grains of rice in each bowl. After the rice seeds are sown, the soil pH value should be monitored in real time to keep the soil pH value between 5 and 6; (5) Lay the mellow soil layer 2 containing the adhesive on the starch film with holes, with a thickness of 0.5 cm to 1 cm; the adhesive is wheat flour dextrin, and the weight of the adhesive in the soil layer accounts for The ratio is 3 to 10%; the mellow soil layer 2 containing the adhesive is accompanied by a seedling strengthening agent, a packing agent and a fungicide; (6) Lay ordinary mellow soil as the top soil above the mellow soil layer 2 containing the adhesive, with a thickness of 0.5cm to 1.5cm, and sprinkle water through the top soil layer; the top soil is accompanied by a seedling strengthening agent and a packing agent and fungicides; (7) Spray the diluted microbial fertilizer once every three days; (8) Add urea and potassium fertilizer once after germination; (9) On the seventh day before transplanting, topdress the "marriage fertilizer"; the "marriage fertilizer" is a mixture of chemical fertilizers and microbial organic matter.