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A kind of rice cultivation method in northern one-ripening rice area

A rice cultivation and rice technology, which is applied in the field of rice cultivation in the northern one-ripening rice area, can solve the problems of low utilization rate, excessive nitrogen fertilizer application, and soil fertility decline.

Active Publication Date: 2021-05-11
FARMING & CULTIVATION RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI
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Problems solved by technology

In addition, since my country's farmland is mainly based on the application of chemical fertilizers, and nitrogen fertilizers are excessively applied, the utilization rate is low.
Although the black soil paddy fields in Heilongjiang have high organic matter, the long-term application of chemical fertilizers in the paddy fields has led to soil compaction and continuous decline in soil fertility
At present, there is no rice cultivation method for carbon sequestration, emission reduction, high yield, high efficiency, fertilization and soil fertility in the northern rice-growing area

Method used

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  • A kind of rice cultivation method in northern one-ripening rice area
  • A kind of rice cultivation method in northern one-ripening rice area

Examples

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Embodiment 1

[0023] In Harbin City, Heilongjiang Province, a rice-growing area in the north, when the rice is mature (late September to early October), the combine harvester is used to harvest in good time, and the straw is removed from the rice field, and the land is plowed in autumn. The plowing depth is 18~ 20cm. In the middle and early May of the second year, a beater was used for beating. Apply base fertilizer once before beating, including bio-organic fertilizer 1.5t / hm with biochar added 2 (Nitrogen 1.837%, phosphorus 1.985%, potassium 2.143%, organic matter 33.314%, manufacturer is Beijing Shunyi Beilangzhong Organic Fertilizer Factory), pure nitrogen 54kg / hm 2 (Urea application, nitrogen content is 46%, deducting the nitrogen contained in bio-organic fertilizer and diammonium phosphate added with biochar), P 2 o 5 70kg / hm 2 (applied diammonium phosphate, nitrogen, P 2 o 5 The contents are respectively: 18% and 46%, deducting the phosphorus contained in the bio-organic fertil...

Embodiment 2

[0031] Except that the regions are different, all the other conditions are the same as in Example 1. The test area of ​​this embodiment is Shuangyashan City, Heilongjiang Province.

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Abstract

The invention provides a rice cultivation method in a rice-ripening area in the north, and relates to the technical field of crop cultivation. The cultivation method of the present invention includes: after the rice is harvested from late September to early October, removing the straw from the paddy field and plowing; beating in the middle and early May of the second year, and transplanting the rice seedlings 5 ​​days after the beating, according to the row spacing of 30cm Transplanting with a size of ×10cm; before the beating, the application of base fertilizer is also included, and the base fertilizer includes: bio-organic fertilizer, nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer added with biochar. The method of the invention can increase the content of organic matter, total potassium, alkali-hydrolyzed nitrogen, available phosphorus, and available potassium in the soil plow layer, reduce the emission of methane and nitrous oxide in paddy fields and the comprehensive greenhouse effect, increase rice yield and nitrogen fertilizer use efficiency, and realize straw synthesis. The purpose of utilization, fertilization of soil, rational distribution of population structure, and rice field emission reduction and efficiency increase.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a rice cultivation method in a rice-ripening area in the north. Background technique [0002] Rice field system is an important source of greenhouse gas emissions, and reducing greenhouse gas emissions from rice fields is of great significance for mitigating the greenhouse effect. Methane is one of the important greenhouse gases in paddy fields. Methane emissions from paddy fields account for about 17% of the world's total annual emissions. Relevant research shows that the annual methane emissions from paddy fields in my country are 7.2-9.5Tg, and the potential for emission reduction is very large. According to incomplete statistics, about 600 million tons of straw are produced by various crops in my country every year, of which 230 million tons are rice straw. The rational recycling of straw resources has become an urgent problem to be solved in my country's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/22A01C21/00C05G1/00
CPCA01C21/005A01G22/22C05B7/00C05C9/00C05D1/02C05D9/00Y02P60/22
Inventor 董文军孟英张俊来永才张卫建杨忠良郭玉锋唐傲陈国建刘海英张喜娟刘猷红罗春华谢树鹏王立志李玉明马瑞李佳锐王秀君李坤
Owner FARMING & CULTIVATION RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI
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