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Method of optimizing and returning to field of straw of cold region rice field

A straw and paddy field technology, applied in the direction of soil preparation, application, agricultural machinery and tools, etc., can solve the problems of affecting the quality of rice transplanting, increasing the labor input of farmers, and the poor effect of returning to the field, so as to facilitate the transplanting and later management, and realize mechanized return Field, the effect of saving labor costs

Inactive Publication Date: 2017-12-19
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems that the traditional straw returning method has poor returning effect, greatly increases the labor input of farmers in the process of straw returning, and affects the quality of transplanted seedlings, and provides an optimized straw returning method for rice fields in cold regions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific implementation mode 1: In this implementation mode, the optimized method for returning rice straw to the field in cold regions is specifically carried out according to the following steps:

[0015] 1. Use a half-feed harvester or a full-feed harvester for harvesting, and scatter the straw evenly in the field;

[0016] 2. When the water content in the field reaches 45% to 65% of the saturated water content of the soil, use the rice straw rotary burying machine to prepare the land, cultivate counterclockwise, throw up the soil and integrate more than 90% of the total volume of straw into the soil, and the tillage depth is 15 ~18cm;

[0017] 3. After the soil is thawed in the spring of the second year, put water to soak the field in late April, irrigate the water to the state of flowering water, soak the field for 3 to 5 days, and then use the stubble leveler to prepare the ground, and use the rake blades and flat ground to roll the exposed straw Press into the s...

specific Embodiment approach 2

[0019] Embodiment 2: This embodiment is different from Embodiment 1 in that: In Step 1, a half-feeding harvester is used to cut the straw into sections of 8-12 cm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment 3: This embodiment differs from specific embodiment 1 or 2 in that: In step 1, a full-feeding harvester is used, and the stubble height is controlled to be 25-30 cm during harvesting, and the remaining straw is crushed. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a method of optimizing and returning to field of straw of a cold region rice field, and relates to the field of returning to fields of straw of the rice fields. The method aims to solve the technical problems that according to a traditional method of returning to a field of straw, the effect of returning to the field is poor, during a process of returning to the field of the straw, the labor input of a farmer is increased, and the rice transplanting quality is affected. The method comprises the steps of (1) harvesting, wherein the straw is evenly dispersed in the field during harvesting; (2) land preparation and stubble burying, (3) irrigation for field steeping, stubble burying and land leveling and (4) rice transplanting and fertilizer application. Through the method, not only can returning to the field of the straw be achieved in the cold region rice field to achieve a purpose of land fertility betterment, but also negative environment effects caused by mass burning of the straw are alleviated, and fertilizer saving, the high yield, the high quality, the high efficiency and the ecological safety of the rice field are achieved; the method is used for returning to the field of the straw in a cold region.

Description

technical field [0001] The invention relates to the field of rice straw returning to the field. Background technique [0002] Returning straw to the field and applying chemical fertilizers are the most effective measures to achieve continuous rice yield increase and soil fertility. However, the proportion of straw returned to the field in cold regions is less than 10%, and straw burning is common, which is the main problem faced by soil fertilization in cold regions. The reasons for the difficulty in returning rice straw to the field in cold regions are as follows: First, after the straw is crushed and sprinkled, it will affect the quality of land preparation in autumn and spring, requiring multiple rotary tillage or rotary tillage after plowing, which increases operating costs and has poor effect; second, after the straw is returned to the field , In the process of water land preparation in spring, a large amount of straw floats after the slurry is stirred, and it is neces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 彭显龙刘智蕾于彩莲王金峰张卫建杨忠良付金东王伟毕诗婷高强匡旭
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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