Water-fertilizer conditioning method for rice straw mulching and returning in wheat season

A technology for rice straw and wheat seasoning, applied in botany equipment and methods, horticulture, application, etc., can solve the problems of straw returning to the field for fertilization and irrigation, and achieve the goals of promoting sustainable development, protecting the environment, and improving economic benefits Effect

Inactive Publication Date: 2010-06-16
SICHUAN AGRI UNIV +8
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the existing methods of straw returning to the field during the wheat season, the lack of norms for fertilization and irrigation of straw returning to the field, and other practical problems, and to provide an efficient, safe, and highly operable specific process-based wheat The water and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This example is a water and fertilizer control technology for rice straw mulching and returning to the field during the wheat season. The specific method is as follows:

[0024] Taking Puxing Town, Xinjin County as the cultivation test site, under the mode of full coverage of rice straw and returning to the field, the following water and fertilizer control technology is adopted: During the whole growth period of wheat growth, the water supply is controlled at 2300m 3 / hm 2 , of which the irrigation volume is 900m 3 / hm 2 , at the jointing and booting stage of wheat, the water supply is controlled at 900m 3 / hm 2 , and adjust the irrigation amount to 500m according to the precipitation of the year 3 / hm 2 ; The amount of fertilizer applied during the whole growth period is N 120kg / hm 2 、P 71kg / hm 2 、K 38kg / hm 2 Phosphorus and potassium fertilizers are applied as base fertilizers at one time, 70% of nitrogen fertilizers are base fertilizers, 30% are topdressing fe...

Embodiment 2

[0026] This example is a water and fertilizer control technology for rice straw mulching and returning to the field during the wheat season. The specific method is as follows:

[0027] Taking Hanchang Town, Dayi County, Chengdu City, a typical Chengdu Plain area as the experimental site, the total rainfall in the wheat season is 150mm, and the rainfall in the critical period of wheat growth from February to March is 45mm. Set 2 treatments, 3 repetitions, 6 plots, and the plot area is 80m 2 .

[0028] The first processing is to process 1 and adopt the water and fertilizer regulation and control technology (the amount of rice straw returning to the field is 9000kg / hm) of rice straw covering and returning to the field in the present invention 2 , during the whole growth period of wheat growth, the water supply is controlled at 2100m 3 / hm 2 , where the irrigation volume is 600m 3 / hm 2 . During the critical period of wheat growth (jointing and booting stage), from February ...

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PUM

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Abstract

The invention discloses a water-fertilizer conditioning method for rice straw mulching and returning in wheat season, which belongs to the field of water-fertilizer conditioning of crops, in particular to a water-fertilizer conditioning technology under the rice straw mulching and returning way in the small spring wheat season of Chengdu Plain. In the Chengdu Plain, rice straws harvested in the previous season are used for total mulching and returning, thereby carrying out quantitative water regulation and soil fertilizer conditioning during the whole growth period of wheat; the method combines the straw total returning with the water-fertilizer conditioning technology, thereby avoiding the possible negative effects to the soil caused by simple returning during the straw decomposition process, integrating the cultivation technology which is matched with straw returning, optimizing a system of fast conversion and utilization of straws and the crop stable and high yield technology and designing the reasonable water-fertilizer conditioning scheme; furthermore, the tillage measures can not only improve the yield of the crops, save the labor force and improve the economic benefits, but also retain water and fertilizer, improve the soil structure, protect the environment and promote the sustainable development of agriculture in the region.

Description

technical field [0001] The invention relates to a method for returning crop stalks to the field, in particular to a water and fertilizer control method in the mode of mulching and returning crop stalks in the small spring wheat season in the Chengdu Plain. Background technique [0002] Straw accounts for about 50% of the crop biological yield, and is an extremely abundant and most directly usable renewable organic resource. The incineration of a large amount of remaining straw not only causes air pollution and has a serious impact on the living environment, but also causes soil fertility to decline year by year, and the agricultural ecological balance is so bad that it is destroyed. Straw returning to the field can effectively increase the content of soil organic matter, supplement its various nutrient elements, and make its nutrient structure more reasonable, thereby improving soil physical and chemical properties and fertilizing soil fertility, especially to alleviate the ...

Claims

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Application Information

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IPC IPC(8): A01G1/00
Inventor 邓良基徐小逊张世熔李云李婷朱荣万天凤谢斌
Owner SICHUAN AGRI UNIV
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