Method for returning straw in wheat-corn year-round production systems to fields

A technology of corn stalks and straws, which is applied in the field of straw returning to the field in the wheat-corn annual production system, can solve problems such as environmental pollution, and achieve the effects of improving soil environment, increasing soil organic matter, and improving soil structure

Inactive Publication Date: 2017-05-31
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
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  • Description
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Problems solved by technology

It can solve the problem of returning a large amount of straw to the field on the spot and avoid environmental pollution caused by rotting and incineration when rushing to farm. It can also increase the organic matter content of the soil, improve the soil structure, fertilize the soil, and improve the agricultural quality. Increased yield and created a new path for the development of high-yield and stable-yield agriculture

Method used

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  • Method for returning straw in wheat-corn year-round production systems to fields
  • Method for returning straw in wheat-corn year-round production systems to fields

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Experimental program
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Effect test

Embodiment 1

[0011] Embodiment 1: A method for returning straws in a wheat-corn annual production system disclosed by the present invention, returns all winter wheat straws and half of summer corn straws to the field, and the operation method involved adopts the existing harvesting and planting technology namely Can.

[0012] Using the corn stalks removed from the field as feed or biomass energy, the method of the present invention can not only improve the soil structure, increase the yield increase rate of plants, but also realize the ternary structure of economic crops, grain, and other functional materials , to maximize the balance of ecological and economic benefits.

[0013] Under the background of the increase of silage corn area and the decrease of soil fertility caused by it, this technology proposes to use half the amount of corn stalks to maintain soil fertility, and then comprehensively utilize straw resources. Based on this background, we conducted a five-year positioning expe...

Embodiment 2

[0015] Embodiment 2: The specific operation method of returning all the winter wheat stalks to the field and half of the summer corn stalks proposed by the present invention: mechanically return the winter wheat stalks to the field after all the winter wheat is harvested, sow corn after rotary tillage suppression, and return half of the corn stalks to the field after the corn is harvested. The straw is removed from the field, and the remaining straw is spread in the middle of the field, and the wheat is sown with a rotary tiller and a rotary tiller. The inventive method can improve soil structure, as shown in table 1,

[0016] Table 1 Effect of straw returning amount on soil bulk density

[0017]

[0018] It can be seen from Table 1 that the JH and 1 / 2JH treatments significantly improved the soil bulk density at the tasseling stage and the mature stage. In the VT stage, the JH and 1 / 2JH treatment 0~20, 20~40 decreased by 12.7%, 7.3% and 4.9%, 4.9% respectively compared wit...

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Abstract

The invention discloses a method for returning straw in wheat-corn year-round production systems to fields. The method includes returning all winter wheat straw to the fields; returning a half of summer corn straw to the fields. The method has the advantages that a half of the straw is returned to the fields, accordingly, the sustainable production capacity of soil can be kept, soil structures can be improved, soil organic matters can be increased, environmental pollution can be reduced, and the method is convenient and speedy and is low in cost; a large quantity of straw can be returned to the fields on the spot during busy farming seasons, accordingly, the problem of environmental pollution due to rotting and burning can be solved, large areas of lands can be maintained by the lands, the contents of the soil organic matters can be increased, the soil structures can be improved, the soil fertility can be fertilized, the crop yields can be increased, novel ways can be created for high-yield and stable-yield agriculture, and ecological, economical and social benefits can be maximized.

Description

technical field [0001] The invention belongs to the technical field of crop application, and specifically relates to a method for returning straw to fields in a wheat-corn annual production system. Background technique [0002] my country is rich in crop straw resources. Among the utilization methods of corn straw resources, straw returning, feed and fuel account for the vast majority. Among them, the amount and proportion of straw resources returning to the field in North China account for a large proportion. The proportion of fuel is more (Wang Rufang, etc.). In recent years, due to the continuous increase in the planting area of ​​corn, the high production cost of corn, and the poor quality of corn grains produced abroad, the production volume, import volume, and inventory of corn have all been at historically high levels, and there has been a "three-increase" of corn question. At present, the corn structure adjustment strategy is to "reduce the planting area of ​​grain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02Y02P60/20
Inventor 张吉旺高飞任佰朝赵斌
Owner SHANDONG AGRICULTURAL UNIVERSITY
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