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Method for regulating and controlling water and fertilizer by plowing wheat straw to field in spring rice season

A technology of ploughing and returning wheat to the field, applied in the fields of botanical equipment and methods, horticulture, and application, can solve the problems of the lack of standardization of straw returning to the field, fertilization and irrigation, avoid negative effects, improve the utilization rate of phosphorus, The effect of increasing effectiveness

Inactive Publication Date: 2012-10-10
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 several methods of returning wheat straw to the field in the spring rice season, the lack of norms for fertilization and irrigation of straw returning to the field, and to provide a specific process that is efficient, safe, and strong in operability. The water and fertilizer regulation mode of rice straw returning to the field in the spring rice season focuses on the qualitative and quantitative technology for the regulation of water and fertilizer in the spring rice straw returning to the field in the Chengdu Plain. Regulatory specific operational issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Yang'an Town, Qionglai City was used as the cultivation site for the experiment. Under the mode of plowing and returning wheat straw to the field, the following water and fertilizer control technology was adopted: the amount of wheat straw returning to the field was 7000kg / hm 2 , during the whole growth period of wheat growth, the water supply is controlled at 1000m 3 / hm 2 , of which the irrigation volume is 2500m 3 / hm 2 , irrigate 850m in the turning green tillering stage 3 / hm 2 , Irrigation at jointing and booting stage 1360m 3 / hm 2 , 1260m of irrigation during heading and flowering period 3 / hm 2 ; The amount of fertilizer applied during the whole growth period is N 158kg / hm 2 ,P 2 o 5 76kg / hm 2 、K 2 O 88kg / hm 2 , increase fertilizer half a month after transplanting, the dosage is N 30kg / hm 2 , P 2 o 5 16kg / hm 2 , K 2 O 18kg / hm 2 , in the heading and flowering stage, fertilize 40 days after transplanting, and the dosage is N 15kg / hm 2 , P 2...

Embodiment 2

[0033] Taking Hanchang Town, Dayi County, Chengdu City, a typical Chengdu Plain area, as the experimental site, the total rainfall during the rice season is 740mm. Set 2 treatments, 3 repetitions, 6 plots, and the plot area is 80m 2 .

[0034] Treatment 1: Using the water and fertilizer control technology of plowing and returning wheat straw to the field in the present invention, the amount of returning wheat straw to the field is 6000kg / hm 2 , during the whole growth period of rice growth, the water supply is controlled at 7500m 3 / hm 2 , of which the irrigation volume is 3800m 3 / hm 2 , irrigated 880m in the turning green tillering stage 3 / hm 2 , Irrigation at jointing and booting stage 1460m 3 / hm 2 , 1470m of irrigation during heading and flowering period 3 / hm 2 ; The amount of fertilizer applied during the whole growth period is N 150kg / hm 2 ,P 2 o 5 80kg / hm 2 、K 2 O 90kg / hm 2 , increase fertilizer half a month after transplanting, the dosage is N31kg / h...

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Abstract

The invention discloses a method for regulating and controlling water and a fertilizer in plowing wheat straw to a field in a spring rice season, belongs to the field of regulating and controlling the water and the fertilizer of crop, and in particular relates to the technology of regulating and controlling the water and the fertilizer which aims at rice-wheat crop rotation and is in a mode of plowing the wheat straw to the field in the spring rice season on Chengdu plain. The method comprises the following steps: on the Chengdu plain, plowing total amount of the wheat straw which is cut in the last season to the field; and regulating water and controlling soil fertility quantificationally in the whole growth period of rice. The method combines the technology of plowing the total amount of the wheat straw to the field and the technology of regulating and controlling the water and the fertilizer of soil, avoids negative effect of the soil caused by returning the wheat straw to the field simply in the decay process of the wheat straw, integrates the technology of returning the wheat straw to the field and the technology of cultivation, optimizes a technical system of rapid conversion and utilization of the wheat straw and dependable crop and high yield of the crop, and a reasonable scheme for regulating and controlling the water and the fertilizer is designed; and the tillage measure can not only improves the yield of the crop, save labor force and improve economic benefit, but also hold the water and preserve the fertilizer, improve a 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 method for quantitatively regulating moisture and fertility in the mode of plowing and returning straws to the field during the spring rice 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 balance of agricultural ecology 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 alle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00
Inventor 张世熔李婷徐小逊唐美英李云贾永霞侯洁张少卿
Owner SICHUAN AGRI UNIV
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