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Method for returning total stalks into fields

A technology for straw and farmland, applied in the field of full straw returning, can solve the problems of difficulty in returning high-yield and ultra-high-yield fields, difficulty in cultivating the surface soil of farmland, and rapid decomposition of straw, etc., so as to reduce nutrient loss and improve carbon sink capacity. , the effect of less soil disturbance

Inactive Publication Date: 2010-12-15
NANJING AGRICULTURAL UNIVERSITY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods of returning straw to the field are mainly direct mulch returning or crushing and returning to the field with rotary tillage. The above methods have difficulties in returning all high-yield and ultra-high-yield fields to the field. A large amount of straw returning to the field makes it difficult to cultivate the surface soil of the farmland, and it affects the emergence of seedlings under drought and cold conditions. and yield, straw decomposes too fast, carbon sink is limited, and it is not conducive to deepening the plow layer and improving soil structure and other problems

Method used

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Examples

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Embodiment 1

[0019] Implementation example 1: In the wheat-rice rotation farmland, harvest ten seasons, that is, five years as a cycle, and work with a working width of 2 meters when harvesting each season. The order of harvesting is to dig a 20 cm wide ditch in the A, B, C, D...J parts of the farmland respectively. The rice season ditch is 30 cm deep, and the wheat season ditch is 25 cm deep. Fill all the straw into the ditch and suppress it, while covering the excavated soil on the straw in the ditch until the end of the tenth season of harvesting and landfilling. At this time, all the farmland is dug once; repeat this operation in the next cycle.

Embodiment 2

[0020] Implementation Example 2: In a double-cropping paddy field, harvest ten seasons, that is, five years as a cycle, and work with a width of 2 meters when harvesting each season. While harvesting and threshing the crops, follow the steps from the first season to the tenth season. The order of harvesting is to dig a 20 cm wide and 30 cm deep ditch in the A, B, C, D...J parts of the farmland respectively. While digging the ditch, fill all the threshed straw into the ditch and suppress it. Cover the excavated soil on the straw in the ditch until the end of the tenth season of harvesting and landfilling. At this time, all the farmland has been dug once; repeat this operation in the next cycle.

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Abstract

The invention is characterized by taking harvest of ten-season crops as a cycle, longitudinally harvesting the crops in each season in the fixed harvesting operation area in the field with fixed operation width, digging a ditch with width being 1 / 10 of the operation width and depth being 25-30cm in the current harvesting operation area while harvesting and threshing the crops, filling all the threshed stalks in the ditch and compacting the stalks and covering the stalks in the ditch with the soil which is dug out while digging the ditch, the distance between the centers of the adjacent ditches dug in the current season being the same as the operation width, during harvesting in the first season, digging the ditch on the edge of the current harvesting operation area each time, during harvesting in the 2-5 seasons and 7-10 seasons, digging the ditches by carrying out translation for 1 / 10 of the operation width in the same direction from the ditch dug in the same harvesting operation area of the last season, during harvesting in the six season, digging the ditch close to the ditch dug in the first season each time and repeating the operations in the next cycle. The method provided by the invention can return total stalks into fields and improve the soil and is suitable for mechanical standard operations.

Description

technical field [0001] The invention belongs to a method for returning full amount of straw to the field, and in particular relates to a method for returning the straw to the field in which crop harvesting, ditch digging, straw entering the ditch and suppression, and soil covering can be carried out simultaneously. Background technique [0002] Crop straw is a carbon-rich energy substance, and returning straw to the field plays an important role in maintaining and improving soil fertility and sustainable development of agriculture. At present, the methods of returning straw to the field are mainly direct mulch returning to the field or rotary tillage after crushing. The above methods have difficulties in returning all high-yield and super-high-yielding fields to the field. A large amount of straw returning to the field makes it difficult to cultivate the surface soil of the farmland, and it affects the emergence of seedlings under drought and cold conditions. and yield, the ...

Claims

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Application Information

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IPC IPC(8): A01B79/00
Inventor 朱利群卞新民
Owner NANJING AGRICULTURAL UNIVERSITY
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