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Flax chemical emasculation bloom-control lodging-prevention cultivation method

A cultivation method and anti-lodging technology, applied in botany equipment and methods, horticultural methods, horticulture, etc., to achieve the effects of increasing yield, improving field permeability, and ensuring the basic number of seedlings

Inactive Publication Date: 2011-05-18
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Taking a comprehensive view of the existing crop chemical destabilization technology at home and abroad, the purpose is to use the hybrid hybrid combination to take advantage of heterosis, increase crop yield and improve product quality, but it is still blank when it is applied to crop lodging resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for chemically killing males, controlling flowers and preventing lodging of flax, comprising:

[0017] The first chemical male killing: in flax bud stage (the middle period of rapid growth, 50% of the flax plant growth points in the field are drooping), choose sunny days to apply thatraquat (sodium dichloropropionate), prepared according to 0.10% aqueous solution, and the dosage of the liquid is 750kg / hm 2 , spray evenly with a sprayer.

[0018] The second chemical male killing: it is completed 7 days after the first spraying of the male killing agent. The method and requirements of the second chemical male killing are the same as those of the first time.

[0019] The third chemical detasseling: 7 days after the second spraying of the andricide, if more than 50% of the main stems of the hemp plants in the field have not bloomed, the third chemical detasseling is required. The method and requirements of the third chemical detasseling Same as first time.

[0...

Embodiment 2

[0022] A method for chemically killing males, controlling flowers and preventing lodging of flax, comprising:

[0023] The first chemical detasseling: during the budding period of flax (50% of the main stems of the flax plants in the field) choose sunny days to apply thatch grass, prepared according to 0.150% aqueous solution, and the dosage of the drug solution is 650kg / hm 2 , spray evenly with a sprayer.

[0024] The second chemical andricide: 5 days after the first spray andricide. The method and requirements of the second chemical male killing are the same as the first time.

[0025] The third chemical detasseling: 5 days after the second spraying of the andricide, if more than 50% of the main stems of the hemp plants in the field have not bloomed, the third chemical detasseling is required. The method and requirements for the third chemical detasseling Same as first time.

[0026] It is determined that the lodging rate of the flax cultivated by the method of the invent...

Embodiment 3

[0028] A method for chemically killing males, controlling flowers and preventing lodging of flax, comprising:

[0029] The first chemical detasseling: at the initial flowering stage of flax (10% of the main stems of the flax plants in the field are blooming), choose a sunny day to apply thatraquat (sodium dichloropropionate), and prepare it with a 0.050% aqueous solution, and the dosage of the liquid is 750kg / hm 2 , spray evenly with a sprayer.

[0030] The second chemical andricide: 6 days after the first spray andricide. The method and requirements of the second chemical male killing are the same as the first time.

[0031] After 6 days of spraying andricide for the second time, less than 50% of the unflowered hemp plants on the main stem in the field were sprayed, so there was no need to spray andricide for the third time.

[0032] It is determined that the lodging rate of the flax cultivated by the method of the invention is reduced by about 40%, the yield of the origina...

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PUM

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Abstract

The invention relates to flax culture technology, in particular to a chemical emasculation anti-lodging culture method for the flax in the later breeding stage. According to the method, a chemical male sterilant is sprayed from the flax budding stage to the flowering state so as to make the flax blossom unfruitfully or seldom fruitfully; and the lodging of the flax plant is avoided by the reduction of the flax plant tip weight and the lowering of the flax plant gravity center. The flax stem grows with nutrition and the bast fibers develop through the reduction of the nutrient consumption by the flowering and fruition of the flax. The method can effectively reduce the lodging rate of the flax and the lodging degree of the flax. The method is obviously characterized by stable output, high quality and high efficiency.

Description

technical field [0001] The invention relates to a flax cultivation technique, in particular to a method for chemically killing males, controlling flowers and preventing lodging. Background technique [0002] Lodging is a common problem in crop production. It not only leads to severe crop yield reduction, but also has a great impact on product quality. A lot of research has been done on the lodging resistance of rice, rapeseed, corn, wheat and other crops at home and abroad. Field permeability, controlled application of nitrogen fertilizer and increased application of phosphorus and potassium to increase lodging resistance of stems, application of uniconazole to reduce plant height) and other measures to enhance lodging resistance of stems. [0003] Flax is a high-density crop, and its slender stems are easy to lodging. High temperature and rainy in the late growth period are prone to lodging in patches, resulting in large areas of retting and mildew, greatly reducing the yi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G7/06
Inventor 孙焕良周清明孟桂元贺再新贺勇
Owner HUNAN AGRICULTURAL UNIV
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