Rice seedling promoter for dry direct seeding and application method

A technology of dry direct seeding and seedling strengthening agent, applied in the field of agricultural science and technology, can solve the problems of high labor intensity, high production cost, and few types of micronutrient elements, and achieve the improvement of field seedling emergence rate, improvement of soil arching ability, and improvement of production efficiency. Effect

Inactive Publication Date: 2016-03-16
SHENYANG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the currently used rice seedling strengthening agent has few micronutrient elements, has no obvious promoting effect on the germination rate and emergence rate of seeds, has poor pest control

Method used

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  • Rice seedling promoter for dry direct seeding and application method
  • Rice seedling promoter for dry direct seeding and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The seedling strengthening agent for dry direct seeding of rice consists of 60% to 70% of nutrients, 10% of acid regulator, 10% to 15% of chelating agent, 4% to 5% of bactericide, 6% to 10% of bactericide insecticide composition.

[0015] Comparative Test

[0016] 1. Indoor germination test

[0017] Indoor germination experiments were carried out in Shenyang. The rice varieties were Shendao 6 and Shendao 47. Set two treatments of seedling strengthening agent treatment (treatment) and clear water (control) for dry direct seeding of rice, repeated 3 times. Put the petri dish into a 30°C incubator for cultivation, investigate the germination potential on the 4th day, investigate the germination rate on the 7th day, and investigate the mesocotyl length and coleoptile length of 10 germinated seeds on the 10th day. The results are shown in Table 1.

[0018] Table 1. The results of rice germination under the treatment of rice seedling strengthening agent for dry direct see...

Embodiment 2

[0026] The difference between the present embodiment and the first embodiment is that the nutrient consists of 20 parts of zinc sulfate, 30 parts of boric acid, 40 parts of magnesium sulfate and 10 parts of sodium molybdate in parts by weight, and the others are the same as in the first embodiment.

[0027] The nutrients in this example are all trace elements necessary for rice. Considering that large amounts of nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer and silicon fertilizer are applied in field rice production, trace elements are applied through seedling strengthening agents, which can be accurately used to improve the fertilization effect. . Zinc fertilizer is beneficial to prevent the stiff seedling disease of rice seedlings caused by zinc deficiency and improve the photosynthesis of rice; boron is beneficial to promote the root system of rice seedlings; magnesium is beneficial to the synthesis of chlorophyll in rice leaves at seedling stage and incre...

Embodiment 3

[0029] The difference between this embodiment and the first embodiment is that the acid regulator is humic acid, and the others are the same as the first embodiment.

[0030] Humic acid is an organic acid with a pH value below 5.5. It replaces strong corrosive acids such as concentrated sulfuric acid, provides acidic conditions for the growth of rice seedlings, and can improve the effectiveness of Zn fertilizer, B fertilizer and Mo fertilizer.

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Abstract

The invention relates to a rice seedling promoter for dry direct seeding and an application method, in particular to a seedling promoter which can improve the sprouting up capacity of rice coleoptile, increase the emergence rate and reduce pest and disease damage in a rice seedling stage under a dry direct seeding condition of rice as well as an application method, and solves the problems of low sprouting up capacity of the rice coleoptile, low field emergence rate, poor seedling quality, serious pest and disease damage threat and the like for dry direct seeding of the rice. Links including trace fertilizer application, acid regulation, pest and disease damage control and the like are finished through one-step seed dressing before seeding, the labor intensity is reduced, and the production efficiency is improved. The rice seedling promoter for dry direct seeding comprises micronutrients, an acid regulator, a chelating agent, an insecticide and a fungicide. The application method comprises the following steps: 1, 30 ml of the rice seedling promoter for dry direct seeding is weighed and added with 30 ml of clear water, and the materials are mixed uniformly; 2, 15 kg of rice seeds are weighed and mixed and stirred uniformly with a rice seedling promoter solution, and a mixture is air-dried; 3, dry direct seeding of the treated rice seeds is performed. The rice seedling promoter for dry direct seeding has few residues and long efficacy, and a culture effect on strong rice seedlings is good.

Description

technical field [0001] The invention relates to a seedling strengthening agent for rice and its use method, in particular to a seedling strengthening agent for improving the soil arching ability of rice coleoptiles under the condition of dry direct seeding of rice, increasing the emergence rate, and reducing the damage of rice seedling diseases and insect pests, which belongs to agriculture technology field. Background technique [0002] The existing rice seedling strengthening agent is used for transplanting rice, and it is applied under the condition of nutrient soil heat preservation and dry seedling raising. It plays an important role in regulating the growth environment conditions of rice seedlings, preventing the occurrence of diseases and insect pests, and controlling the excessive growth of rice seedlings. The application effect under live production conditions is not ideal. In recent years, the area of ​​direct-seeding rice in China, especially in the north, has be...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/02C05G3/60
Inventor 王术王铁良贾宝艳黄元财王岩王韵董立强周婵婵高光杰刘丽华
Owner SHENYANG AGRI UNIV
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