JPS6349003A - Base material for seed tape - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a base material for seed tape, and in particular, to promoting or regulating germination and post-germination growth by incorporating a growth promoter or the like into the base material. The present invention relates to a base material for seed tape that can be used as a seed tape.

(Prior Art) Seed strings are known in which seeds are wrapped in a seed tape with a width depending on the size and purpose of the seeds.

FIG. 4 is a diagram showing an example of a seed string. That is, a substantially constant number of seeds 2 are wrapped around the seed tape 1 at regular intervals and entwined with two binding threads 3□4.

Then, if necessary, fertilizer or the like is sealed in the space 5 around the seeds 2 to promote the growth of the seeds 2.

(Problems to be Solved by the Invention) In the above-mentioned conventional seed strings, growth promoters such as trace elements are in the form of fine powder and the amount required is extremely small. Difficult to encapsulate. For this reason, conventionally, this type of growth promoter has been supplied to seeds by performing a separate spraying operation without encapsulating it in a seed tape.

However, such a spraying operation is not preferable from the viewpoint of labor saving.

In addition, when separately spraying, an excessive amount of the growth promoter must be used, which is undesirable from the viewpoint of cost reduction.

The purpose of the present invention was to solve the above-mentioned problems of the prior art, and to efficiently (promote or control seed growth) and save labor in agricultural work using the minimum necessary amount of chemicals. An object of the present invention is to provide a base material for a seed tape that can be used in a variety of ways.

(Means for solving the problem) As a result of intensive study in accordance with the above objectives, the inventors of the present invention have determined that
By incorporating trace elements such as growth promoters or growth regulators into the base material of the seed tape itself, the difficulty in encapsulating trace elements can be solved, and furthermore, by using a water-soluble resin film or nonwoven fabric as the base material. The present invention was achieved based on the discovery that the trace elements contained in this are smoothly dispersed into the soil and efficiently contribute to the germination and growth of seeds.

That is, the present invention is a base material for a seed tape in which a growth promoter or a growth articulating agent is dispersed in a water-soluble resin film or nonwoven fabric.

In the present invention, a water-soluble resin film is used as the material for the base material for the seed tape. The reason why a water-soluble resin is used as a material is to enable drugs such as growth promoters dispersed therein to be smoothly eluted into the soil. As such water-soluble resin, polyvinyl alcohol (PVA
), carboxymethyl cellulose (CMC), water-soluble nylon (polyamide polymer), and water-soluble films made from starch fermentation products. Among these, PVA is most preferred. As the nonwoven fabric, one made of cotton, rayon, or the like is used.

In the present invention, a growth promoter refers to a drug that has the effect of promoting seed germination and post-germination growth. The ingredients and blending ratio of such growth promoters vary depending on the type of seeds, soil conditions, etc. As the growth promoter, for example, a mixture of two or more selected from saccharides, organic acids, manganese, iron, zinc, copper, boron, molybdenum, magnesium, and nickel is used.

Examples of sugars include glycose (glucose), sucrose (sucrose), fructose (fructose), maltose (
maltose), ceviose, raffinose, etc.

By providing wIs, cell growth can be promoted as a carbon source.

The reason for using organic acids is that when giving inorganic substances, the form of the compound is important, especially for iron (Fe), P H
If it is more than 5.2, it becomes insoluble and cannot be absorbed, so it takes the form of an organic acid (citric acid, chelated iron, etc.).

When such a growth promoter is contained in the water-soluble resin film or nonwoven fabric in an amount of 3% by weight or more, it is effective in promoting the growth of seeds. Further, the preferred composition of the growth promoter is, by weight, 25.0 to 35.0% sugars, 25.0% organic acids.
O~30.0%, manganese 20°0~25.0% iron5.
0-7.0%, zinc 4.0-5.0%, copper 4.0-5.
0%, boron 3.0-4.0%, molybdenum 1.0-2
．． 0%, magnesium 0.5-1.5%, and nickel 062-1.0%.

In the present invention, the term "growth regulator" refers to a drug, including so-called plant growth hormones, that has the effect of promoting or suppressing the physiological processes of plants in minute amounts.

Examples of such growth regulators include cytokinin, auxin, gibberellin, abscisic acid, and ethylene. Note that gibberellin is particularly effective in breaking seed dormancy and promoting germination because it is highly effective.

When the growth regulator is contained in the water-soluble resin in an amount of 2% by weight or more, it is effective in regulating the growth of seeds.

Seeds to which the seed tape base material of the present invention can be applied include:
There are various kinds such as radish, Horenso, carrot, burdock, turnip, green onion, komatsuna, beet, Chinese cabbage, and lettuce.

Next, the method for manufacturing the seed tape base material of the present invention will be briefly described.

When PVA is used as the material, for example, the growth promoter or growth regulator is first added to the molten PVA and mixed so as to be uniformly dispersed. Next, this molten PVA is processed into a film by a known method such as extrusion molding using a T-die to obtain a PVA film in which a growth promoter and the like are uniformly dispersed.

This PVA film may be made into a laminated film to increase its strength, or it may be processed into a wet-laid nonwoven fabric and then used as a base material for a seed tape. Furthermore, molten PVA in which a growth promoter is uniformly dispersed can be used as a binder for wet or dry nonwoven fabrics. Furthermore, since wet-laid nonwoven fabrics are made by dispersing fibers in water, the substance can also be dispersed in water and adsorbed onto the fibers.

The thickness of the seed tape can generally be from 15 to 20 microns. When considering germination, it is best to keep the seed tape as thin as possible; however, thicker tape is used when it is necessary to increase the amount of chemical compounded depending on the geology of the land where the seeds are sown. In the case of nonwoven fabric, one with a weight of 12 g/m2 to 13 g/m2 is used.

In addition, in the conventional method, so-called macronutrients such as nitrogen, phosphorus, potassium, and calsulam are required in large amounts for plant growth, so they are separately fertilized.

However, as for seed tape for home gardening, a seed tape containing a comprehensive fertilizer containing the three major elements is also effective.

In addition to the above-mentioned growth promoter and growth regulator, a disinfectant and a fungicide can be dispersed in the tape. Conventionally, such chemicals were rolled into the seed string together with the seeds, which not only resulted in a large amount of chemicals used, but also worsened the working atmosphere during the tape manufacturing process. In this way, by impregnating the tape with the chemical, it is possible to maintain a good work atmosphere during the seed string manufacturing work and prevent the onset of disease or mold even with the use of a small amount.

(Examples and Comparative Examples) The present invention will be specifically described below based on Examples and Comparative Examples.

3% by weight (390g) of a growth promoter in a water-soluble PVA film with a length of 30,000m, a thickness of 17μ, and a weight of 13kg.
) A base material for a seed tape containing a growth promoter was manufactured.

The composition of the growth promoter used is as follows.

Magnesium (Mg) 1% Manganese (Mn) 22.7% Zinc (Zn)
4.7% fl (Cu) 4.7% Organic acid 26.4% Iron (Fe) 5.9% Boron (B) 3.6% Molybdenum (M
o) 1.2% nickel (Ni)
0.5% Okara
29.3% ■ Growth regulator containing 2% by weight of growth regulator (260g
) A base material for a seed tape containing a growth regulator was manufactured.

The growth regulator used was one consisting of 60% cytokinin and 40% amino acids. This blending amount and ratio can promote early growth such as seed germination and rooting (care should not be taken with the amount of the growth regulator, as both promoting and suppressing effects are observed). In this case, amino acids have the effect of delivering necessary protein nutrients to cells and have a growth-promoting effect as an organic enzyme source.

K1 sho 1 In 850 m of the above growth regulator-containing seed tape base material,
34 radish seeds (large rolls), 3 seeds at 25cm x 5cm intervals
Seed tape containing 00 seeds was prepared in 3 types 1 (NO, 1 to No.
, 3) made. This seed tape was sown on a test farm (Japan Plant Seeder's Kawagoe Farm), and after 63 days, the growth rate of the radish was examined.

Comparative Example 1 The growth rate of radish was examined in the same manner as in Example 1, except that a PVA film containing no growth regulator was used.
The results were compared with those of Example 1. The results are shown in Table 1.

In addition, Hl, Ll, ! in the table. and Wl are as shown in FIG.

(The following is a blank space) 1st cover j'' LL A seed tape was made in the same manner as in Example 1 except that a growth promoter-containing seed tape base material was used as the seed tape base material. This seed tape was sown at a test farm (Japan Plant Cedar's Kawagoe Farm), and after 28 days, the growth rate of the radish was examined.

Comparative Example 2 The growth rate of radish was compared with the results of Example 2 in the same manner as in Example 2, except that a PVA film containing no growth promoter was used. The results are shown in Table 2. Note that W2, H, and L in the table are as shown in FIG. 2. FIG. 2(b) shows the largest leaf of FIG. 2(a).

Table 2 Large 1" [L Three types of seed tapes each containing 500 seeds of Horenso seeds (Late Drop Pioneer) at 4 cm intervals in 2000 m of the base material for seed tapes containing growth promoters ( No
, 1 to No. 3).

This seed tape was sown at a test farm (Japan Plant Seeder's Kawagoe Farm), and after 28 days, the growth rate of Horen grass was examined.

The growth rate of Horen grass was examined in the same manner as in Example 3, except that a PVA film containing no growth promoter was used.
The results were compared with those of Example 3. The results are shown in Table 3.

Note that W 3 , L 3 and H3 in the table are as shown in FIG. 3. FIG. 3(b) shows the largest leaf of FIG. 3(a).

(The following is a margin) Table 3 As is clear from Tables 1 to 3, the results of Examples 1 to 3 using the base material for seed tape of the present invention are the same as those of the corresponding comparative example 1.
It can be seen that this is superior to any of the items 3 to 3.

(Effects of the Invention) As explained in detail above, the base material for seed tape of the present invention speeds up and stabilizes seed germination compared to sowing with conventional seed tape, and significantly promotes early growth such as rooting. can be done.

In addition, in the conventional agricultural work system, the work of spraying the above substances was done separately, but since the work of spraying can be completed at the same time as sowing without wastage and efficiently, it is possible to save labor and to spread the above substances. This has the effect of saving money.

Although the nine microelements listed above are physiologically important, they are often overlooked and deficient, and the fertilization method is exclusively foliar spraying, but seed tape bases are The above effects can be obtained by including it in the material itself.

[Brief explanation of the drawing]

FIGS. 1 and 2 are diagrams showing growth standards for radish, and FIG. 3 is a diagram showing growth standards for Horenso. FIG. 4 is a diagram showing an example of a seed string.

Claims (5)

[Claims] (1) A base material for seed tape in which a growth promoter or growth regulator is dispersed in a water-soluble resin film or nonwoven fabric. (2) Claim 1, wherein the water-soluble resin film is a polyvinyl alcohol film.
Substrate for seed tape as described in Section 1. (3) The growth promoter is a mixture of two or more selected from sugars, organic acids, manganese, iron, zinc, copper, boron, molybdenum, magnesium, and nickel. Substrate for seed tape according to item 1 or 2. (4) The composition of the growth promoter is 25.0 saccharides by weight.
-35.0%, organic acid 25.0-30.0%, manganese 20.0-25.0%, iron 5.0-7.0%, zinc 4.
0-5.0%, copper 4.0-5.0%, boron 3.0-4
．． 0%, molybdenum 1.0-2.0%, magnesium 0.5-1.5% and nickel 0.2-1.0%. Base material for use. (5) The base material for seed tape according to claim 1, wherein the growth regulator is cytokinin, auxin, gibberellin, abscisic acid, or ethylene.