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Rape straw covering method for preventing and controlling rice field weeds

A rapeseed straw and rice field technology, applied in the agricultural field, can solve the problems of environmental pollution, waste of straw resources, etc., and achieve the effects of protecting the ecological environment, improving the quality of agricultural products, and solving difficult problems in processing

Active Publication Date: 2017-01-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current processing method of rape straw is mainly incineration, which not only causes a serious waste of straw resources, but also seriously pollutes the environment.

Method used

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  • Rape straw covering method for preventing and controlling rice field weeds
  • Rape straw covering method for preventing and controlling rice field weeds
  • Rape straw covering method for preventing and controlling rice field weeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, rape stalks are dried and cut into 2-5 cm long stem segments. In water direct-seeding paddy fields, 4-7 days after rice sowing, evenly apply 600-900g / m at one time 2 Rape pods, straw or a mixture of both. When spreading, a small amount is gradually sprinkled in, and it is not advisable to sprinkle too much mulch in a concentrated manner, so as not to damage the rice seedlings. Normal management after spreading.

Embodiment 2

[0041] Embodiment 2, rape stalks are cut into 2-5 cm long stem segments after being dried in the sun. In dry direct-seeding paddy fields, 4-7 days after rice sowing, evenly spread 600-900g / m 2 Rape pods, straw or a mixture of both. Sprinkle in a small amount gradually, and it is not advisable to sprinkle in too much mulch, so as not to damage the rice seedlings. Normal management after spreading.

Embodiment 3

[0042] Embodiment 3, rape stalks are cut into 2-5 cm long stem segments after being dried in the sun. In transplanting paddy fields, 5-10 days after rice transplanting, evenly spread 600-900g / m 2Rape pods, straw or a mixture of both. Gradually spread a small amount between the rows of rice seedlings, and then spread them out in the field to evenly cover the soil surface to avoid overwhelming the rice seedlings. Normal management after spreading.

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Abstract

The invention discloses a rape straw covering method for preventing and controlling rice field weeds, which adopts rape pod dry, rape straw, or the mixture of the two and is covered with soil before the direct seeding of rice or before and after transplanting so as to effectively prevent the harm of rice field weeds. The rape straw covering method for preventing and controlling rice field weedscomprises the steps of A. taking rape pod dry, rape straw, or the mixture of the two as covering; B. selecting any of the following ways according to the type of rice field: the first way. in water direct seeding rice field and dry direct seeding rice field, uniformly spreading 300-1100g / m2 covering from the sowing day until the twentieth day; the second way, in transplanting rice field, machine inserting rice field, or throwing rice field, uniformly spreading 300-1100g / m2 covering before the transplanting, or from the day after transplanting or throwing until the twentieth day; first spreading in the rice lines, and then spreading evenly in the rice field to cover the soil surface; avoiding overwhelming the rice seedling.

Description

technical field [0001] The invention relates to a method for preventing and controlling weeds in paddy fields by mulching rape stalks, which belongs to the field of agriculture. Background technique [0002] Rice is the largest food crop in my country, and ensuring high and stable rice yields is of great significance to my country's food security. Weeds are one of the main pests in paddy fields. Weeds compete with rice for glory, water, and fertilizer, with more than 3.33 million hectares across the country 2 of the paddy fields are damaged by weeds, causing about 3.4 billion kg of grain loss. There are more than 200 species of weeds in paddy fields in my country, among which there are about 40 major weeds that are seriously harmful, including barnyardgrass, heterocystic sedge, bermudagrass, amaranthus auricularia, daughter of a daughter, and Polygonum cloves. [0003] The popularization and application of herbicides have effectively controlled the harm of weeds, and chemi...

Claims

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Application Information

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IPC IPC(8): A01G13/02
CPCA01G13/0262
Inventor 朱金文郑贵平周伟军陈学新周国军陆强沈卫新石春华王国迪许燎原周小军陈冬平梁文朱寅帆李小荣王会福朱国念
Owner ZHEJIANG UNIV
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