Chemical regulation agent for corn growth and use method thereof

A technology of chemical regulation and regulator, applied in the direction of plant growth regulators, plant growth regulators, botany equipment and methods, etc., which can solve the problems of reducing the photosynthetic production capacity of corn, reducing corn yield, and corn photoinhibition

Inactive Publication Date: 2015-07-29
HENAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a C4 crop with high light efficiency, corn is prone to photoinhibition under rainy and low-light conditions, which reduces the photosynthetic production capacity of corn and seriously affects grain filling, resulting in a decrease in corn yield.
Spraying plant growth regulators is currently one of the main means to obtain high yield by improving the stre...

Method used

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  • Chemical regulation agent for corn growth and use method thereof
  • Chemical regulation agent for corn growth and use method thereof
  • Chemical regulation agent for corn growth and use method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The chemical regulating agent for corn growth, each 1kg chemical regulating agent is composed of the following substances: gibberellin 20mg, potassium dihydrogen carbonate 15g, urea 15g, amino acid foliar fertilizer 7g, brassinosteroid 0.3mg, and the balance is water.

Embodiment 2

[0025] The chemical regulating agent for corn growth, each 1kg chemical regulating agent is composed of the following substances: gibberellin 18mg, potassium dihydrogen carbonate 20g, urea 10g, amino acid foliar fertilizer 15g, brassinosteroid 0.1mg, and the balance is water.

Embodiment 3

[0027] The chemical regulating agent for corn growth, each 1kg chemical regulating agent is composed of the following substances: gibberellin 22mg, potassium dihydrogen carbonate 10g, urea 20g, amino acid foliar fertilizer 5g, brassinosteroid 0.5mg, and the balance is water.

[0028] The selected process of formula of the present invention is as follows:

[0029] 1. Preliminary screening of plant growth regulator spraying period and concentration in 2012

[0030] The test material was Liyu 16, and the corn was shaded for 7 days before tasseling. At the end of the shading treatment, the growth regulator was sprayed on the foliage, and the spraying of clear water was used as the control (CK). Growth regulators include: A, gibberellin: set three concentrations of A1 (10mg / L), A2 (20 mg / L) and A3 (30mg / L); B, indole acetic acid: set B1 (0.05mg / L ), B2 (0.1mg / L), B3 (0.2mg / L) three concentrations (dilution 4000-4500 times when used); C, 6-benzylaminoadenine (6-BA): set C1 (20...

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Abstract

The invention discloses a chemical regulation agent for corn growth. Each 1 kg of chemical regulation agent consists of the following materials: 18-22 mg of gibberellins, 10-20 g of potassium dihydrogen carbonate, 10-20 g of urea, 5-15 g of amino acid leaf fertilizer, 0.1-0.5 mg of brassinolide and the balance of water. According to the invention, the male and female interval of the tasseling stage and the silking stage of corn seedlings is shortened to improve the corn seedling pollination and the yield; besides, the chemical regulation agent facilitates the improvement on the grain filling rate, accelerates the fullness of grains, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of corn growth regulating compositions, and in particular relates to a chemical regulator of corn growth and a using method thereof. Background technique [0002] Corn is the largest food crop in my country and the main field for the further development of food security. In the "National Food Security Mid- and Long-Term Planning Outline", especially the "National Plan for Increasing the Production Capacity of 100 Billion Catties of Grain", Henan has undertaken the task of increasing production by 15.5 billion catties, which is one-seventh of the country. Among them, corn accounted for 8.8 billion catties, accounting for 56.8% of the province's newly added grain. By 2012, Henan Province has successfully achieved nine consecutive increases in summer grain and ten consecutive increases in autumn grain. As far as corn production is concerned, the continuous increase in production is mainly due to the increase ...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01N43/22A01P21/00A01N43/12
Inventor 刘京宝乔江方朱卫红李川谷利敏夏来坤黄璐薛华政
Owner HENAN ACAD OF AGRI SCI
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