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Simplified rice nitrogen application method based on quick-acting nitrogen fertilizer

A technology for quick-acting nitrogen fertilizer and rice, which is applied in fertilization methods, fertilization devices, applications, etc., can solve the problems of high labor input, high cost of slow/controlled release fertilizers, and many fertilization times, and achieves economic benefits. Benefit, low fertilizer cost effect

Pending Publication Date: 2019-08-16
RICE RES INST GUANGDONG ACADEMY OF AGRI SCI
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of many times of fertilization, high labor input and high cost of slow / controlled release fertilizers existing in the existing nitrogen fertilizer optimal application technology, the purpose of the present invention is to provide a light and simple nitrogen fertilization method for rice based on quick-acting nitrogen fertilizer

Method used

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  • Simplified rice nitrogen application method based on quick-acting nitrogen fertilizer
  • Simplified rice nitrogen application method based on quick-acting nitrogen fertilizer
  • Simplified rice nitrogen application method based on quick-acting nitrogen fertilizer

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Effect test

Embodiment 1

[0027] A light and simple nitrogen fertilization method for rice based on quick-acting nitrogen fertilizer (implemented at the test base of Guangdong Academy of Agricultural Sciences, Zhongluotan Town, Baiyun District, Guangzhou City), comprising the following steps:

[0028] a. According to the local standard of Guangdong Province "Technical Regulations for Three-control Fertilization of Rice" (DB44 / T 969-2011), in terms of pure nitrogen, the total amount of nitrogen fertilizer for early rice and late rice is determined to be 150kg / hm respectively 2 、180kg / hm 2 ;

[0029] b. because it is transplanting rice, so the nitrogen fertilizer in step a is divided into basal manure and ear manure for 2 applications;

[0030] c. The ratio of basal fertilizer and ear fertilizer application rate in step b is 4:6, that is, the application rate of nitrogen fertilizer as basal fertilizer is 60kg / hm 2 (early rice) or 72kg / hm 2 (Late rice), the application rate of nitrogen fertilizer as ea...

Embodiment 2

[0040] A light and simple nitrogen fertilization method for rice based on available nitrogen fertilizer (implemented at the Dafeng Experimental Base of Guangdong Academy of Agricultural Sciences, Tianhe District, Guangzhou City), comprising the following steps:

[0041] a. According to the local standard of Guangdong Province "Technical Regulations for Three-control Fertilization of Rice" (DB44 / T 969-2011), in terms of pure nitrogen, the total amount of nitrogen fertilizer is determined to be 165kg / hm 2 ;

[0042] b. because it is transplanting rice, so the nitrogen fertilizer in the step a is divided into base manure and ear manure for 2 applications;

[0043] c. The ratio of basal fertilizer and ear fertilizer application rate in step b is 4:6, that is, the application rate of nitrogen fertilizer as basal fertilizer is 66kg / hm 2 , the application rate of nitrogen fertilizer as ear fertilizer is 99kg / hm 2 .

[0044] The basal fertilizer is artificially applied after the pl...

Embodiment 3

[0053] A light and simple nitrogen fertilization method for rice based on available nitrogen fertilizer (implemented in the paddy production field of Yingzi Town, Lianjiang City), comprising the steps of:

[0054] a. According to the local standard of Guangdong Province "Technical Regulations for Three-control Fertilization of Rice" (DB44 / T 969-2011), in terms of pure nitrogen, the total amount of nitrogen fertilizer is determined to be 165kg / hm 2 ;Considering the high amount of seed used for direct-seeding rice, the total amount of nitrogen fertilizer should be reduced by 10% on this basis, that is, the total amount of nitrogen fertilizer should be 150kg / hm 2 ;

[0055] b. because it is direct-seeding rice, so the nitrogen fertilizer in step a is divided into tillering fertilizer and ear fertilizer for 2 applications;

[0056] c. the ratio of tillering fertilizer and ear fertilizer application rate in step b is 4:6, namely the application rate of nitrogen fertilizer as tille...

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Abstract

The invention discloses a simplified rice nitrogen application method based on quick-acting nitrogen fertilizer. The method comprises steps as follows: nitrogen fertilizer is divided into base fertilizer or tillering fertilizer and earing fertilizer and applied twice, the application ratio is 4:6, the base fertilizer is applied before transplanting of transplanting rice, the tillering fertilizer is applied at four-five-leaf stage of direct sowing rice, and the earing fertilizer is applied at the primary branch differentiation stage of young ears of the transplanting rice and the direct sowingrice. Compared with a frequently-used nitrogen application method for farmers, the simplified rice nitrogen application method has the advantages that total amount of the nitrogen fertilizer, yield and utilization rate of the nitrogen fertilizer have no significant difference, but the fertilizer application is reduced by 1-2 times, labor and cost are saved, and the method is simple to operate andeasily accepted by massive rice farmers.

Description

technical field [0001] The invention belongs to the technical field of rice planting and fertilization, and in particular relates to a light and simple nitrogen fertilization method for rice based on quick-acting nitrogen fertilizer. Background technique [0002] Nitrogen is one of the most critical nutrients affecting rice yield. However, due to the one-sided pursuit of high yield, farmers generally apply excessive nitrogen fertilizers, and adopt the operation method of "one bombardment" or heavy-based tiller fertilizer and light grain fertilizer, making my country a big rice producer in the world with large nitrogen fertilizer consumption and low utilization rate. It not only affects the increase of rice production, wastes fertilizer resources, but also leads to problems such as deterioration of the ecological environment. For this reason, in the past ten years, Chinese scientific researchers have developed several rice nitrogen fertilizer optimization techniques that not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00
CPCA01C21/00
Inventor 钟旭华胡香玉傅友强彭碧琳梁开明潘俊峰黄农荣刘彦卓夏常伟
Owner RICE RES INST GUANGDONG ACADEMY OF AGRI SCI