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Short-season cultivation method for improving average daily production of cotton

A cultivation method and a technology for daily yield, applied in the cultivation field of increasing cotton yield, can solve the problems of long growth period and flocking time, high cost of planting cotton, decreased enthusiasm for planting cotton, etc. Effect

Inactive Publication Date: 2017-06-20
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional seedling transplanting cotton has a long growth period and boll opening time, and the average daily seed cotton yield is low. Under the background of the current serious shortage of rural labor force, the cost of cotton planting is high and the benefit is low. Cotton area is decreasing year by year

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Before sowing, apply 400g of 10% mass concentration of glycyrrhizin water agent per mu to the cotton field for weeding. After weeding, potassium chloride and superphosphate are used as base fertilizers in the cotton field at one time. The application rate of potassium chloride is 220kg, and the application rate of superphosphate is 850kg per hectare of cotton field; and early-maturing cottonseeds are selected as sowing seeds without germination treatment; during the sowing period, the selected early-maturing cottonseeds will be sown on May 15-20 by direct seeding in the open field , sowing density is 52,500 plants / hm 2 From the full bud stage to the early flowering stage, 1 g of mepipebine was applied per mu in the cotton field; in the full flowering stage, a shallow ditch was opened at 6.5 cm beside the cotton row at the outermost edge of each cotton field, and urea was applied once in the shallow ditch, and the application amount of urea was Apply 220kg per hectare of...

Embodiment 2

[0013] Before sowing, apply 700g of 10% mass concentration of glycyrrhizin water agent per mu to the cotton field for weeding. After weeding, potassium chloride and superphosphate are used as base fertilizers in the cotton field at one time. The application rate of potassium chloride is 230kg, and the application rate of superphosphate is 950kg per hectare of cotton field; and the early-maturing cottonseed is selected as the sowing seed without germination treatment; the early-maturing cottonseed will be sown in the open field on May 20-25 during the sowing period , sowing density is 52,500 plants / hm 2 From the full bud stage to the early flowering stage, apply 3 g of mepipebine per mu in the cotton field; in the full flowering stage, a shallow ditch is opened at 6.5 cm next to the cotton row at the outermost edge of each cotton field, and urea is applied in the shallow ditch at one time, and the amount of urea applied is Apply 230kg per hectare of cotton field; when 40% of th...

Embodiment 3

[0015] Before sowing, apply 500g of 10% mass concentration of glycyrrhizin water agent per mu to the cotton field for weeding. After weeding, potassium chloride and superphosphate are used as base fertilizers in the cotton field at one time. The application rate of potassium chloride is 225kg, and the application rate of superphosphate is 900kg per hectare of cotton field; and the early-maturing cottonseed is selected as the sowing seed without germination treatment; the early-maturing cottonseed will be sown in the open field on May 18-22 during the sowing period , sowing density is 52,500 plants / hm 2 From the full bud stage to the early flowering stage, apply 2 g of mepipebine per acre in the cotton field; in the full flowering stage, open a shallow ditch at 6.5 cm next to the outermost cotton row in each cotton field, and apply urea once in the shallow ditch, and the amount of urea applied Apply 225kg per hectare of cotton field; when 35% of the cotton bolls start to open b...

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PUM

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Abstract

The invention provides a short-season cultivation method for improving the average daily production of cotton. The method comprises the steps that before sowing, a glyphosate aqueous solution is applied to a cotton field for weeding, and after weeding, potassium chloride and calcium superphosphate serve as base fertilizers and are applied in a one-off mode; in the sowing period, cotton seeds of a selected early-maturing variety are sown at about 20th May in a mode of direct sowing uncovered with film; mepiquat chloride is applied from the full budding period to the initial flowering period; in the full flowering period, shallow ridges are dug at 6.5 cm beside cotton rows on the outermost periphery of the cotton field, and urea is applied in a one-off mode; when 30-40% of cotton bolls in the cotton field start to be opened, a ripening agent obtained by mixing clear water and a mixture of Thidiazuron and Diuron is sprayed on the cotton leaf surfaces so as to make cotton plants disleaved and the cotton bolls intensively opened, and picking is finished before 20th October. Sowing is delayed in a direct sowing mode, all growth periods of the cotton are made to be shortened, the total growth period of the cotton is controlled for about 150 days, and compared with the total growth period, namely 210-230 days, in a current seedling transplanting mode, the total growth period is shortened by about one third. Therefore, the effect that the high-production of the cotton is obtained in a short time by improving the average daily production of the cotton is achieved, and compared with the traditional seedling transplanting mode, the average daily production of the cotton is increased by 10-15 kg.hm<2>.

Description

technical field [0001] The invention relates to a cultivation method for increasing cotton yield, in particular to a short-season cultivation method for increasing cotton yield by shortening the cotton growth period to increase the average daily yield of cotton. Background technique [0002] Traditional seedling cultivation and transplanting cotton have a long growth period, and cotton competes with winter crops for land and season conflicts, high cost, low benefit, and low mechanization level. Cotton in the Yangtze River Basin is generally sown in early April, boll opening begins in early and mid-August, and flower harvesting ends in mid-to-late November. The output of seed cotton is 4500-5250kg. hm -2 As the goal, the current average growth period of seedling transplanted cotton is 220 days, and the average daily seed cotton output is 20.45-24.86kg. hm -2 . The traditional seedling transplanting cotton has a long growth period and boll opening time, and the average da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/02A01C21/00C05G1/00C05C9/00
CPCA01B79/02A01C21/005A01G22/00C05B1/02C05C9/00C05D1/02Y02P60/20
Inventor 阳会兵杨俊兴周仲华高志强
Owner HUNAN AGRICULTURAL UNIV
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