Topping-off budding-inhibition lodging-prevention flax cultivation method at late growth stage

A cultivation method and lodging prevention technology, which are applied in horticultural methods, botanical equipment and methods, horticulture and other directions to achieve the effects of increasing yield, ensuring basic seedling numbers, and improving field permeability

Inactive Publication Date: 2009-07-29
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Taking a comprehensive look at the existing crop topping and bud suppression technologies at home and abroad, the purpose is to increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A cultivation method for topping, suppressing buds and preventing lodging of flax in the later stage of growth, comprising:

[0019] Topping and suppressing buds for the first time: choose sunny or cloudy days during the budding period of flax to take mechanical methods to remove the tops and branches of flax plants (in case of rainy days, it can be postponed for 1-2 days), and keep the flax stems from the base to the tips At the first branch (that is, the technical length of the hemp stem, about 65-80cm), the top stems and leaves that have been cut off should be cleaned in time after topping, so as not to affect the normal growth and development of flax. During the topping process, try to avoid hemp For the mechanical damage of strains, apply the bud suppressant within 24 hours after topping, preferably apply 25% bud suppressant EC at 16:00-18:00 p.m. 350-400 times liquid, the dosage of diluted medicine is 750kg / hm 2 , when spraying, it should be sprayed evenly from t...

Embodiment 2

[0024] A cultivation method for topping, suppressing buds and preventing lodging of flax in the later stage of growth, comprising:

[0025] Topping and suppressing buds for the first time: On the 5th day after the budding of flax, the top tip and branches of the flax plant are removed mechanically, and the first branch from the base of the flax stem to the tip is retained (that is, the technical length of the flax stem, about 65-80cm), after topping, the top stems and leaves that have been cut off should be cleaned in time to prevent the normal growth and development of flax from being affected. For the bud agent, it is preferable to apply 30.2% bud DEEC at 16:00-18:00 p.m. on the day of topping, and spray it evenly with a sprayer. 2 , when spraying, it should be sprayed evenly from the top of the hemp plant, and sprayed in two times.

[0026] The second topping and bud suppression: Due to the differences in plant growth and development, the time for the second topping and bu...

Embodiment 3

[0030] A cultivation method for topping, suppressing buds and preventing lodging of flax in the later stage of growth, comprising:

[0031] Topping and suppressing buds for the first time: On the 10th day after the budding of flax, the top tip and branches of the flax plant are removed mechanically, and the first branch from the base of the flax stem to the tip is retained (that is, the technical length of the flax stem, about 65-80cm), after topping, the top stems and leaves that have been cut off should be cleaned in time to prevent the normal growth and development of flax from being affected. For the bud agent, it is preferable to apply 25% bud gram water solution at 16:00-18:00 on the afternoon of the topping day, and spray it evenly with a sprayer. 2 , When spraying, it should be sprayed evenly from the top of the hemp plant, and sprayed once.

[0032] The second topping suppression: Due to the difference in plant growth and development, the second topping suppression t...

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Abstract

The invention relates to flax culture technology, in particular to a topping off bud inhibition anti-lodging culture method for the flax in the later breeding stage. According to the method, the tip and twigs of a flax plant are removed by a mechanical method from the flax bud appearance stage to the flowering stage; simultaneously a bud inhibition agent is sprayed to prevent the side twigs of the flax plant from sprouting; 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 method is not limited by the anti-lodging performance of flax varieties, is not impacted by the flax growing period, and is not affected by the flax seed quantity, the flax nitrogen fertilizer application amount and the flax plant technological length. The problems similar to the underproduction caused by the synchronous shortening of the technological length of an original stem due to the flax plant height reduction resulting from the application of uniconazole cannot occur. The method can effectively reduce the lodging rate of the flax, reduce the lodging degree of the flax, and prolong the growth duration 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 cultivation method for topping, suppressing buds and preventing lodging in the later stage of flax growth. 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, rape, corn, wheat and other crops at home and abroad, mainly by selecting lodging-resistant varieties and improving cultivation techniques (such as adjusting the sowing time of crops to avoid rainy seasons, reducing planting density to increase field traffic, etc.) Permeability, controlled nitrogen fertilizer application and increased phosphorus and potassium application to increase the lodging resistance of stems, application of uniconazole, etc. to reduce plant height) and other measures to enhance the lodging resistance of stems. ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G7/06
Inventor 孙焕良孟桂元周清明柏连阳贺再新贺勇吴刚
Owner HUNAN AGRICULTURAL UNIV
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