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Method for chemically regulating and controlling cotton root configuration

A technology of root system configuration and chemical regulation, applied in botany equipment and methods, horticultural methods, horticulture, etc., can solve the problems of premature aging and hollowing of cotton, and achieve the effects of delaying premature aging, promoting the expansion of biomass, and increasing yield

Inactive Publication Date: 2013-04-17
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are also problems such as cotton premature aging and hollowing in Xinjiang cotton area.

Method used

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  • Method for chemically regulating and controlling cotton root configuration
  • Method for chemically regulating and controlling cotton root configuration
  • Method for chemically regulating and controlling cotton root configuration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In 2009, in the high-yielding cotton fields of the 149th Regiment and 5th Company of the 8th Division of Agriculture in Shihezi, northern Xinjiang, a test was carried out to control the root system by spraying mepipetrozine. The soil used for the test was irrigated gray desert soil with medium fertility and sandy loam. , the cotton variety tested was Xinluzao 26, and the planting mode was ultra-wide film cotton planting, with a film width of 2.05 meters, six rows per film, and 15,800 seedlings / mu in practice. The drip irrigation and fertilization mode was adopted, and drip irrigation was performed 8 times during the growth period. The sub-irrigation volume is 25-40 cubic meters, the cumulative irrigation volume is 320 cubic meters / ha, 340 kg / ha of pure nitrogen, 61.5 kg / ha of pure phosphorus, and 2.76 kg / ha of pure potassium;

[0033] Two treatments are established in the test, and the treatment one is conventional treatment: promptly manage according to the management m...

Embodiment 2

[0042] In 2010, a test was carried out on the high-yielding cotton fields of the 149th Regiment and the 5th Company of the 8th Agricultural Division of Shihezi, northern Xinjiang, to control the root system by spraying mepiperine. The soil used for the test is gray desert soil with medium fertility and sandy loam. The cotton variety tested is Xinluzao 26. The planting mode is ultra-wide film cotton planting, with a film width of 2.05 meters and six rows per film. 15,600 seedlings / mu, using drip irrigation and fertilization mode, drip irrigation 8 times during the growth period, single irrigation volume 25-40 cubic meters, cumulative irrigation volume is 320 cubic meters / mu, 340 kg / ha of pure nitrogen, 61.5 kg / ha of pure phosphorus, Pure potassium 2.76 kg / ha;

[0043] Two treatments are established in the test, and the treatment one is conventional treatment: promptly manage according to the management method of the high-yield cultivation procedure (without using metropic amine...

Embodiment 3

[0051] In 2010, another high-yielding cotton field sprayed with mepipeptide was carried out on the 20th Company of the 149th Regiment of the Eighth Division of Agriculture in Shihezi, northern Xinjiang. Loamy soil, the tested cotton variety is Xinluzao 26, the planting mode is ultra-wide film cotton planting, the film width is 2.05 meters, one film has six rows, and the actual seedling preservation is 14,700 plants / mu. Adopt the drip irrigation and fertilization mode, drip irrigation 8 times during the growth period, the single irrigation volume is 25-40 cubic meters, the cumulative irrigation volume is 320 cubic meters / mu, 340 kg / ha of pure nitrogen, 61.5 kg / ha of pure phosphorus, and 2.76 kg / ha of pure potassium ;

[0052] Two treatments are established in the test, and the treatment one is conventional treatment: promptly manage according to the management method of the high-yield cultivation procedure (without using metropic amine), and the second treatment is the metropic...

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Abstract

The invention relates to a method for chemically regulating and controlling cotton root configuration, comprising the following steps: firstly spraying mepiquat chloride after establishing seedling in the cotton seedling stage; secondly spraying the mepiquat chloride during the trefoil stage; spraying the mepiquat chloride in the five-leaf stage; spraying the mepiquat chloride for one time every 5-10 days during the period from the five-leaf stage to the top-cutting stage; and spraying the mepiquat chloride after cutting the top for twice. The invention adopts the action theory of the plant growth adjusting agent of the mepiquat chloride to implement the method for chemically regulating and controlling cotton root configuration by matching with the growth stage indexes of the cotton.

Description

technical field [0001] The invention relates to a method for chemically regulating the configuration of cotton roots. Background technique [0002] Cotton root system is the main organ for cotton water and nutrient absorption, and the development and spatial configuration of the root system have a significant impact on cotton yield. Xinjiang's cotton high-yield cultivation technology has been at the world's advanced level in recent years, and the cotton yield per unit area is far higher than the world's average per unit area yield, which is at the highest level in the world. However, there are also problems such as premature aging and hollowing of cotton in Xinjiang cotton area. The root sampling results showed that shallow root distribution and root water and nutrient absorption obstacles caused by premature senescence in the later stage were important reasons for a series of problems such as premature senescence and hollowing. The method of directional regulation of cott...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/06
Inventor 王平田长彦
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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