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A special anti-aging agent for corn that promotes grain filling and its application method

A corn-specific, application method technology, applied in fertilization methods, applications, fertilization devices and other directions, can solve problems such as large impact, unstable yield and efficiency increase, etc., to prevent premature leaf senescence, prolong physiological function period, improve yield and economical effect of benefit

Active Publication Date: 2021-03-23
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The occurrence of premature leaf senescence in crops is the result of polygene control, which is closely related to the characteristics of varieties and the environmental effects of densely planted populations. Previous studies have mostly focused on the regulation of leaf senescence and yield by cultivation and farming techniques in different ecological zones. The research of these types of technologies is greatly affected by regional climate conditions, and the increase in production and efficiency between years is unstable

Method used

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  • A special anti-aging agent for corn that promotes grain filling and its application method
  • A special anti-aging agent for corn that promotes grain filling and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 field bioassay test

[0022] The test site is Nanjing City, Jiangsu Province, with Suyu 29 as the test material, sown on April 25, with a density of 60,000 plants·hm -2 . Set two treatments of spraying anti-aging agent and clear water, anti-aging agent is 5 formulas respectively, each formula has 4 repetitions, and each plot is 30m 2 .

[0023] Formula one, the thiadidiazuron of 0.003mg / L, the calcium nitrate (Ca(NO) of 350mg / L 3 ) 2 ), 80mg / L magnesium sulfate (MgSO 4 ), 150mg / L of urea (CO(NH 2 ) 2 ), the surfactant (Tween 20) of 5ml / L.

[0024] Formula two, the thiadizuron of 0.003mg / L, the calcium nitrate (Ca(NO) of 350mg / L 3 ) 2 ), 100mg / L of magnesium sulfate (MgSO 4 ), 200mg / L of urea (CO(NH 2 ) 2 ), the surfactant (Tween 20) of 5ml / L.

[0025] Formula three, 0.005mg / L of thiadizuron, 350mg / L of calcium nitrate (Ca(NO 3 ) 2 ), 120mg / L magnesium sulfate (MgSO 4 ), 250mg / L of urea (CO(NH 2 ) 2 ), the surfactant (Tween 20) of 5ml / L.

...

Embodiment 2

[0034] Embodiment 2 Field yield test

[0035] The test site is Gongzhuling City, Jilin Province. Taking Xianyu 335 as the test material, it was sown on April 15, with a density of 67500 plants·hm -2 . Set two treatments of spraying anti-aging agent and clear water, anti-aging agent is 5 formulas respectively, each formula has 3 repetitions, and each plot is 60m 2 .

[0036] Formula one, the thiadidiazuron of 0.003mg / L, the calcium nitrate (Ca(NO) of 350mg / L 3 ) 2 ), 80mg / L magnesium sulfate (MgSO 4), 150mg / L of urea (CO(NH 2 ) 2 ), the surfactant (Tween 20) of 5ml / L.

[0037] Formula two, the thiadizuron of 0.003mg / L, the calcium nitrate (Ca(NO) of 350mg / L 3 ) 2 ), 100mg / L of magnesium sulfate (MgSO 4 ), 200mg / L of urea (CO(NH 2 ) 2 ), the surfactant (Tween 20) of 5ml / L.

[0038] Formula three, 0.005mg / L of thiadizuron, 350mg / L of calcium nitrate (Ca(NO 3 ) 2 ), 120mg / L magnesium sulfate (MgSO 4 ), 250mg / L of urea (CO(NH 2 ) 2 ), the surfactant (Tween 20) of...

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Abstract

The invention discloses an anti-aging agent for promoting grain filling special for corn and an application method thereof and belongs to the technical field of crop cultivation. The anti-aging agentcomprises the following main components: thidiazuron, calcium nitrate (Ca(NO3)2), magnesium sulfate (MgSO4) and urea. The anti-aging agent combines effects of plant growth regulating substances and mineral elements, regulates two aspects such as plant hormone physiology and mineral nutrition and can achieve effects of obviously improving photosynthetic performance of functional leaves in a corn grain filling period, promoting grain filling and improving the final harvesting yield; moreover, the anti-aging agent has effects of improving abilities of corn for resisting low temperature, drought and other adverse situations and preventing premature aging. The main components of the anti-aging agent are easily soluble to water, the preparation process is simple and convenient, and the anti-aging agent is easy to master and operate and is particularly suitable for foliage spray in the corn grain-filling period. High yield of the corn and economic benefits of peasants are realized, and the anti-aging agent is suitable for large-area popularization.

Description

[0001] 1. Technical field [0002] The invention belongs to the fields of agricultural plant growth regulators and plant nutrition, and mainly relates to an antiaging agent for promoting corn grain filling and an application method. [0003] 2. Background technology [0004] Corn is the largest food crop in my country, and increasing the population density is the most effective way to increase the yield of corn. According to expert analysis, if the planting density of corn in our country increases by 500 plants per mu, and the corresponding technical measures are provided, the yield per mu can be increased by more than 50kg. Fertilizer, etc. cannot fully meet the needs of grain filling. In high-density populations, the empty stalk rate increased, the ears became smaller, and the quality of the stalks deteriorated, making lodging very easy. In the later stage of grain filling, the absorption function of maize roots declines, the nitrogen transport of functional leaves accelera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00A01C21/00
CPCA01C21/005C05C5/04C05G3/00C05C9/00C05D5/00
Inventor 刘瑞显李从锋张国伟任红杨长琴
Owner JIANGSU ACAD OF AGRI SCI
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