JPH04200304A - Coated seed for tree planting - Google Patents

Abstract

PURPOSE:To facilitate scattering of seed and enable uniform sowing by coating and granulating light and fine powdery seeds for tree planting with a coating agent obtained by mixing agalmatolite powder or silicate powder with high polymer absorbing agent, adhesive, and bud promoter, etc. CONSTITUTION:Mixed powder obtained by adding at least one kind of high polymer absorbing agent (e.g. highly water absorbing polymer), adhesive (e.g. CMC) and germination promoter (e.g. cordierite) to agalmatolite powder or silicate powder used as main ingredient is produced and a coating agent is prepared from the mixed powder. Then light and fine powdery seed (e.g. seed of bentograss) is coated and granulated with a coating agent having an amount selected according to grain numbers per unit weight of seed itself. Thereby scattering of the seed is made easy, because specific gravity of the seed can be heightened. Further, germination ratio can be improved and dieing ratio after germination can be lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to light powder-coated seeds for greening.

[Conventional technology] Conventional seeding methods can be divided into two types: manual seeding methods using simple machines (fertilizer spreaders, etc.), and seeding methods for large-scale seeding works using large machines such as hydroseeders. It can be broadly classified.

Among the above-mentioned manual sowing methods, hand sowing is the most popular method and is simple and does not require specialized tools, so it is common, but it is impossible to sow over a large area. In addition, when sowing seeds such as lettuce that are expensive per grain, or when using a machine to save the hassle of pruning after germination, the seeds are made into pellets one by one and sown using a special seeding machine. However, it can only be used in fields.

When using the hydroseeder spraying method, when sowing on the slope of a highway or on a large area of land, a tank of about 1 ton is loaded onto a truck, and water, seeds, fertilizer, seed protectants such as pulp, and glue are placed in the tank. This is a seeding method in which the seeds are mixed with water and sown using a pump. If the foundation of the slope is rock or something similar, there is a method of pouring mud such as compost into the tank mentioned above and spraying it onto the slope (the former is called general blowing and the latter is called mud blowing). . General blowing works well if the soil conditions are good and is flat or gently sloping, but it fails when the slope is steep and the soil itself washes away.

In addition, mud blowing is not common because the work efficiency is low and the unit cost is high. The disadvantage of either case is that it cannot be installed in areas where hoses cannot reach or trucks cannot access.

[Problems to be Solved by the Invention] The conventional method of sowing by hand has been considered extremely primitive and in need of further development. Particularly in recent years, new varieties of grass, grasses for greening slopes, and flowers have been developed, and there has been a demand for the establishment of simpler and more reliable sowing methods. The problem with conventional seeding methods is that it first takes a lot of effort to prepare the target area for sowing. The destination for sowing is not always leveled, but rather is often in a state of disrepair. If the seeds are simply sown in this state, the chances of them being blown away by the wind and reaching the soil is extremely low because the seeds are light. In addition, in uncultivated soil, there is a high possibility that seeds will be washed away by rain or watering.

In particular, the steeper the slope of the earth's surface, the higher the risk of erosion.

In addition, in large areas, manual watering becomes impractical and one must wait for natural rainfall, but a sufficient supply of moisture is essential during germination, especially when watering under cover.

If it is not covered with soil, it will dry out very quickly. −
Because the specific gravity of the seeds themselves is extremely light, they cannot be thrown very far. Also, due to its light specific gravity,
It is a generally recognized problem that it is extremely difficult to spread a small amount evenly and uniformly.

Therefore, the purpose of the present invention is to solve the above-mentioned problems in manual sowing methods using simple fertilizer spreaders, etc., and to easily sow large areas and areas where hydroseeder trucks cannot enter. To provide seeds in an improved state so that they can be sown on a slope with a certain degree of slope and with various types of undergrowth at the base.

[Means for Solving the Problems] As a result of extensive research to achieve the above object, the present inventors have found that seeds with light specific gravity contain waxite powder or silica powder as a main component and other polymeric absorbents. By coating and granulating the seeds with a coating agent containing adhesives, germination promoters, etc., the desired effects can be obtained, such as making up for the shortcomings of currently used seeding methods and improving seed germination and establishment. The present invention was achieved based on the discovery that

That is, in the present invention, light powdered seeds are coated and granulated with a coating agent in an amount selected depending on the number of grains per unit weight of the seeds themselves, preferably 3 to 5 times the weight of the seeds themselves. The coating material is prepared from a mixed powder consisting mainly of waxite powder or silica powder, to which is added at least one of a polymer absorbent, an adhesive, and a germination promoter. The present invention provides coated seeds for greening characterized by the following.

As a result of numerous field tests conducted by the present inventors, the relationship between seeds and coating agents was found to be 4 to 5 times as large as 500 to 3 in very light powdered seeds with around 10,000 grains per gram. 3-5 for large seeds of ,000
By applying twice the weight of the coating to twice the weight of the seeds, it is possible to achieve a maximum of about 2.5 m/n and less.
It was found that the best results could be obtained. This increases the specific gravity of the seeds themselves, reducing the influence of wind during dispersal.
It is extremely light in weight, prevents it from being washed away by wind, rain, etc. after falling, improves burrowing into the soil, and at the same time makes it possible to uniformly disperse seeds with a small amount of force. This also made it easier to handle the seeds themselves.

At the same time, the adhesive contained in the coating will help watering after sowing,
It dissolves due to rainfall, etc., and works to fix seeds in the soil.
It was found that washing away due to rain after spraying can be prevented.

This allows the seeds to settle in the soil until they germinate, and provides water and nutrients immediately after germination when the plants are at their weakest, leading to an improved germination rate.

The polymeric absorbent contained in the coating agent plays a major role in supplying moisture after sowing, reducing the need for watering after sowing, and replenishing moisture in seeds from early seedlings. This reduces the mortality rate of seeds after germination.

Germination-promoting pA, which is a component of the coating agent, acts directly on seeds and promotes germination. This shortens the time it takes to germinate, improving germination rates and reducing the chance of runoff and mortality.

This coating enables various types of easy sowing using a spreader.

Types of light powdery seeds that are the object of the present invention include bent grasses, fex grasses, ryegrasses, gentucky bullgrass, western grasses, and flower seeds for edging them.

[Operation] As described above, by coating and granulating the seeds themselves, the following advantages can be obtained in the seeding method.

(a) There will be fewer exiles.

Although there are slight differences depending on the seed, most seeds have a low specific gravity, so if you sow them on the ground, they will be washed away or blown away by the wind and will not remain on the substrate. It can increase the fixing power and holding power of

(b) There will be less uneven sowing.

By increasing the specific gravity, the influence of wind during sowing is suppressed, and it is also easier to spread using fertilizer spreaders, etc., resulting in more uniform sowing without uneven sowing.

(c) Germination becomes faster.

By coating with a water retention agent and, if necessary, fertilizer, the conditions for seed germination can be adjusted and the seeds can germinate quickly and uniformly.

(d) It becomes easier to sow.

With existing seeding methods, medium area (approximately 500 to 3000 m2
When sowing by hand, it is too wide, and with a hydroseeder, it is too small.When sowing by hand, there are problems with ground preparation and labor, and when using a hydroseeder, if there is grass on the ground, the grass The coated and granulated seeds of the present invention greatly reduce such problems, take advantage of the ease of hand sowing, and minimize the need for ground preparation. , making it easier to sow in areas where hydroseeders cannot reach or where there is undergrowth.

Examples of the formulation of the coating agent are as follows.

A. Wax stone or silica stone 10-15 parts
Polymer absorbent 0.120-0.200+
+ Super absorbent polymer) C Adhesive (CM C) 0.120~0.
2001 Noji Germination promoter (cordierite) 0.25
~Q, 3 u However, waxite is 5iOz・75~80%
, A1.0. - It consists of 15 to 20%, and silica consists of S r 02.92 to 97%.

Cordierite is Al 203.30-35%.

It consists of Si○2=47-55% and MgO: 12-17%.

The coating treatment of the light powdered seeds and the preparation of the product are carried out as follows.

10-12 parts of seeds, 40-45 parts of coating agent, 13 parts of water
~15 parts are processed, but first the seeds are put into a granulator,
Add water from Steps 2 to 31 and stir to evenly incorporate water.

Thereafter, the coating agent and water were added alternately, and the coating was completed in about 10 minutes. The coated product was dried at a temperature below 40-50°C for 15-20 minutes. Next, it is classified into sizes of 7 to 40 meshes and made into products.

When the obtained coated seeds were test-sown, the germination state was extremely uniform, and the other germination conditions were also satisfactory.

[Effects of the Invention] As explained above, by using the coated granulated seeds of the present invention, the preparation for sowing at the destination of sowing can be minimized, and the specific gravity of the seeds is increased, making it easier to disperse. It facilitates uniform sowing, and improves germination rate and mortality rate after germination by adjusting germination conditions with adhesives, water retention agents, germination promoters, and if necessary, fertilizing ingredients added to the coating agent. The present invention provides a novel coated seed for greening that solves the problems of conventional seeding methods, such as the reduction of

Procedural amendment (formality) 72! April ↓4, 1991 2. Name of the invention coated greening seeds

Claims (2)

[Claims] (1) Lightly powdered seeds are coated and granulated with a coating agent in an amount selected according to the number of grains per unit weight of the seeds themselves, and the coating agent is waxite powder or silica powder. A coated seed for greening, characterized in that it is prepared from a mixed powder containing as a main component, to which at least one of a polymer absorbent, an adhesive, and a germination promoter is added. (2) The coated seeds for greening according to claim 1, wherein the amount of the coating agent selected is 3 to 5 times the weight of the seeds themselves.