CN103181397A - Inducer-containing seed soaking agent for industrial seedling raising of rice - Google Patents

Abstract

The invention discloses an industrial seedling-raising rice seed soaking agent containing an inducer, which is made of the following components (mass percentage): 0.25%-2% of chitosan oligosaccharide, 0.5%-5% of prochloraz, pyridoxine 0.5% to 5% of phitrozine, 5% of cosolvent, 5% of dispersant, and 84.25% to 88.25% of filling materials. The preparation method is as follows: the above components are uniformly mixed, pulverized by supersonic airflow, and then passed through a 400-mesh sieve Prepared in subpackages. The beneficial effect of the present invention is: using prochloraz to control seed-borne diseases in the early stage and the effect of pymetrozine to inhibit insect pests in the later stage, and the industrial seedling-raising coating agent made of plant inducer chitosan oligosaccharide, on the basis of controlling seed-borne diseases On the one hand, it solves the problem of strong rice seedlings and post-emergence SBPH and other pests at the seedling stage.

Description

A kind of rice seed soaking agent for industrialized seedling raising containing inducer

technical field

The invention relates to an industrial seedling-raising rice seed soaking agent containing an inducer, belonging to the technical field of crop seeds.

Background technique

In recent years, with the continuous improvement of the level of mechanization and the need to increase labor productivity, the area of machine-transplanted rice has continued to expand, which is accompanied by changes in the way of raising rice seedlings, that is, from traditional water seedling raising techniques to standardized industrial seedling raising. The main advantages of commercialized centralized seedling raising are as follows: First, the land for seedling fields is saved, and the ability to resist risks is strong. The scattered seedling fields are relatively concentrated, which not only saves the land for seedling fields, but also facilitates the unified management of water slurry and the unified control of pests and diseases, and has a strong ability to resist risks; second, the sowing date is accurately grasped, and the planting quality is good. In the past production, the phenomenon of "seedling waiting for the field" often occurred due to scattered seedling raising, which caused machine-transplanted seedlings to exceed the age of seedlings and affected the quality of planting. Through commercialized centralized seedling raising and sowing in batches, it is possible to plant at the right time and effectively The passive situation that the planting time is not timely has been slowed down; the third is that the technology is strictly controlled and the quality of the seedlings is high.

Although the centralized seedling raising point has applied the strong seedling cultivation technology in place, the seedling raising level is high, the rotten seedlings are less, the emergence and seedling rate is high, and the seedlings are neat and consistent, reaching the standard of strong seedlings. However, there are certain problems in machine-transplanted rice seedling raising. mainly:

1. The seedling raising environment is generally in a greenhouse or a closed environment, the ventilation and light transmission conditions are poor, and the seedlings are generally thinner;

2. Seedling raising techniques are similar to dry seedlings, and diseases such as bakanae disease are aggravated at the seedling stage;

3. The planting period of machine-transplanted rice seedlings is generally earlier than that of rice planted by other methods, and it is vulnerable to the concentrated harm of the first generation of SBPH after transplanting.

However, at present, the traditional seed soaking agent prochloraz is generally used as the seed soaking agent in industrialized seedling raising. The activity of rice seedling cell membrane protective enzymes SOD, CAT and POD is low, which can only control seed-borne diseases, but cannot strengthen seedlings and control gray flying after early transplanting. Lice harm problem, so it is necessary to improve on this basis.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a seed coating agent for machine-transplanted rice industrialized seedlings, which can not only control seed-borne diseases, but also solve the problem of strong rice seedlings and post-emergence SBPH. The problem of pest infestation.

The object of the present invention is achieved through the following technical solutions: a kind of seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is as follows: the above-mentioned components are uniformly mixed, pulverized by a supersonic airflow, and then sieved with 400 meshes.

The co-solvent is NNO (sodium methylene bis-tetrasulfonate).

The dispersant is pull-off powder BX.

The filler is clay filler.

The beneficial effect of the present invention is: using prochloraz to control seed-borne diseases in the early stage and the effect of pymetrozine to inhibit insect pests in the later stage, and the industrial seedling-raising coating agent made of plant inducer chitosan oligosaccharide, on the basis of controlling seed-borne diseases On the one hand, it solves the problem of strong rice seedlings and post-emergence SBPH and other pests at the seedling stage.

Detailed ways

The technical solution of the present invention is further described below in conjunction with the examples, but the scope of protection is not limited to the description.

Example 1

A seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is as follows: the above-mentioned components are uniformly mixed, pulverized by a supersonic airflow, and then sieved with 400 meshes.

The co-solvent is NNO.

The dispersant is pull-off powder BX.

The filler is clay filler.

Example 2

A seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is the same as in Example 1.

The co-solvent is NNO.

The dispersant is pull-off powder BX.

The filler is clay filler.

Example 3

A seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is the same as in Example 1.

The co-solvent is NNO.

The dispersant is pull-off powder BX.

The filler is clay filler.

Example 4

A seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is the same as in Example 1.

The co-solvent is NNO.

The dispersant is pull-off powder BX.

The filler is clay filler.

Example 5

A seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is the same as in Example 1.

The co-solvent is NNO.

The dispersant is pull-off powder BX.

The filler is clay filler.

Example 6

A seed coating agent for machine-transplanted rice industrialized seedling raising, which is made of the following components (mass percentage):

The preparation method is the same as in Example 1.

The co-solvent is NNO.

The dispersant is pull-off powder BX.

The filler is clay filler.

Experiments have shown that by using the seed soaking agent obtained by the present invention to soak seeds and raise seedlings, the activity of rice seedling cell membrane protective enzymes SOD, CAT and POD is increased by 37.94%, 22.75% and 21.35% respectively compared with single use of prochloraz soaking seeds, soluble sugar, soluble protein and preserved Amino acid content increased by 15.82%, 12.92% and 24.47%, respectively. 15 days after emergence, the chlorophyll content and root activity of rice were increased by 23.53% and 28.90% compared with those soaked with prochloraz alone. The survey 30 days after rice transplanting showed that the incidence of rice stripe blight transmitted by SBPH dropped by 30.2 percentage points.

Claims (4)

1. an industrial rice seedling-raising agent containing inducer, is characterized in that: it is made of the component of following content (mass percentage): The preparation method is as follows: the above-mentioned components are uniformly mixed, pulverized by a supersonic airflow, and then sieved with 400 meshes. 2. The machine-transplanted rice factory seedling-raising coating agent according to claim 1, characterized in that: the co-solvent is NNO. 3. The machine-transplanted rice industrialized seedling-raising coating agent according to claim 1, characterized in that: the dispersant is pull-off powder BX. 4. The machine-transplanted rice factory seedling-raising coating agent according to claim 1, characterized in that: the filler is clay filler.