Rice planting method for efficiently applying nitrogenous fertilizer in quantity reducing mode

A nitrogen fertilizer and high-efficiency technology, applied in the field of nitrogen fertilizer reduction and rice planting, can solve the problems of large nitrogen fertilizer non-point source pollution and low fertilizer utilization rate, and achieve the effects of improving fertilizer utilization rate, reducing volatilization loss, and reducing runoff loss

Active Publication Date: 2015-09-30
INST OF AGRI SCI ALONG YANGTZE RIVER IN JIANGSU
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AI Technical Summary

Problems solved by technology

[0002] The existing method of nitrogen fertilizer application in paddy fields has low fertilizer utilization rate and large non-point source pollution of nitrogen fertilizer, which needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A method for nitrogen fertilizer reduction and efficient application of rice planting, comprising the following steps:

[0013] (1) Rice seedlings are raised in trays using nutrient soil (or matrix) mixed with slow-release fertilizers. Rice uses plastic trays (artificial transplanting with soil in the root holes) or hard disk seedlings (mechanical planting in the root holes), and more slow-release fertilizers are added to the seedling raising substrate or nutrient soil (the specific data is that no seedling fertilizer is caused. Harmful degree), and mix evenly, choose the type of slow-release fertilizer so that its fertilizer effect will reach the highest after 30 days of nitrogen release rate in the soil, so that it can be applied before sowing seedlings, and the fertilizer will exert force through the rhizosphere of seedlings after transplanting to the field the goal of. Seedbeds should be operated in accordance with the management requirements of dry cultivation. Th...

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PUM

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Abstract

The invention discloses a rice planting method for efficiently applying nitrogenous fertilizer in a quantity reducing mode. The rice planting method comprises the steps that nutrient soil or substrates mixed with slow release fertilizer are adopted to carry out plate rice seedling raising on rice; the rice is planted in wide rows and narrow rows in a densification mode; base fertilizer is deeply applied in the middles of the narrow rows of the rice; deep application and topdressing are carried out beside plants in the wide rows of the rice. The volatilization loss and runoff loss of the fertilizer are reduced through rice field deep fertilizer application and rice plant rhizosphere fertilizer application, the utilization rate of the fertilizer can be improved, under the conditions of keeping the yield of the rice not to be reduced, the applied nitrogenous fertilizer can be reduced by over 20 percent, the non-point source pollution of the nitrogenous fertilizer can be effectively controlled, and remarkable social, economic and ecological benefits are achieved.

Description

technical field [0001] The invention relates to a method for planting rice by reducing nitrogen fertilizer application. Background technique [0002] The existing method of applying nitrogen fertilizer in paddy fields has low fertilizer utilization rate and large non-point source pollution of nitrogen fertilizer, which needs to be further improved. Contents of the invention [0003] The object of the present invention is to provide a method for increasing the fertilizer utilization rate and effectively controlling the non-point source pollution of nitrogen fertilizer, which can reduce the amount of nitrogen fertilizer and apply high-efficiency rice planting method. [0004] Technical solution of the present invention is: [0005] A method for nitrogen fertilizer reduction and efficient application of rice planting is characterized in that it comprises the following steps: [0006] (1) Rice seedlings are raised with nutrient soil or matrix mixed with slow-release fertiliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01C21/00A01G22/22
CPCA01C21/005A01G22/22
Inventor 刘建魏亚凤杨美英李波汪波薛亚光
Owner INST OF AGRI SCI ALONG YANGTZE RIVER IN JIANGSU
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