Direct field-returning and decomposition promoting method suitable for rice stubble and wheat straw in area along Huaihe river

A kind of area and wheat straw technology, applied in the field of direct return to the field to promote decay, can solve the problems of low survival rate, poor effect of returning straw to promote decay, weak activity, etc., to achieve the effect of increasing the release rate, improving the efficiency of nitrogen fertilizer use, and enhancing the activity

Active Publication Date: 2018-12-14
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the functional bacteria in the stalk agent have a process of adapting to the soil environment, the straw-degrading bacteria directly applied to the soil usually have a low survival rate and weak activity, resulting in poor decay-promoting effect on the returned straw.

Method used

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  • Direct field-returning and decomposition promoting method suitable for rice stubble and wheat straw in area along Huaihe river
  • Direct field-returning and decomposition promoting method suitable for rice stubble and wheat straw in area along Huaihe river
  • Direct field-returning and decomposition promoting method suitable for rice stubble and wheat straw in area along Huaihe river

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Effects of combined application of different humus agents on wheat straw decomposition, soil nutrient content and rice yield

[0041] Test location: Yulin Village, Songdian Township, Huoqiu County, Anhui Province

[0042] Test method: field test

[0043] Test materials: paddy soil, rice seeds, chemical fertilizers, rotten stalks, etc.

[0044] experiment procedure:

[0045] 1) Straw harvesting and returning to the field

[0046] 2) Base fertilizer application (according to the soil test formula fertilization plan, the amount of nitrogen, phosphorus and potassium fertilizer is 15-2.5-4.5kg / 667m 2 , with an initial C / N ratio of 18:1)

[0047] 3) Combined with rotting agent (D1, D2, D3, mixed with sand)

[0048] 4) Mechanical turning and irrigation

[0049] 5) Transplanting and topdressing

[0050] The main comparison content of the test:

[0051] 1) Straw returning to the field + recommended fertilization, marked as SF1;

[0052] 2) Straw returning to the field +...

Embodiment 2

[0062] Effects of Regulating C / N Ratio on Decomposition of Returning Wheat Straw, Soil Nutrient Content and Rice Yield

[0063] Test location: Yulin Village, Songdian Township, Huoqiu County, Anhui Province

[0064] Test method: field test

[0065] Test materials: paddy soil, rice seeds, chemical fertilizers, rotten stalks, etc.

[0066] experiment procedure:

[0067] 1) Straw harvesting and returning to the field

[0068] 2) Base fertilizer application (according to the soil test formula fertilization plan, the amount of nitrogen, phosphorus and potassium fertilizer is 15-2.5-4.5kg / 667m 2 , the initial C / N ratio is adjusted to 4 levels, namely 12:1, 18:1,

[0069] 24:1 and 104:1)

[0070] 3) Combined with rotting agent (D2, mixed with sand)

[0071] 4) Mechanical turning and irrigation

[0072] 5) Transplanting and topdressing

[0073] The main comparison content of the test:

[0074] 1) Straw returning + recommended fertilization + D2, marked as SF1D2, and the C / N r...

Embodiment 3

[0085] Effects of straw rot agent combined with straw organic fertilizer on the effect of conventional straw rotting and returning to the field

[0086] Test site: Nanxu Village, Guohe Town, Lujiang County, Anhui Province

[0087] Test method: field test

[0088] Test materials: paddy soil, rice seeds, chemical fertilizer, rotten agent, straw organic fertilizer, etc.

[0089] experiment procedure:

[0090] 1) Straw harvesting and returning to the field

[0091] 2) Base fertilizer application (according to the soil test formula fertilization plan, the amount of nitrogen, phosphorus and potassium fertilizer is 18-9-6kg / 667m 2 , with an initial C / N ratio of 18:1)

[0092] 3) Combined application of rotten agent (D4, accompanied by application of 10kg / 667m 2Sand, straw organic fertilizer or livestock and poultry manure organic fertilizer)

[0093] 4) Mechanical turning and irrigation

[0094] 5) Transplanting and topdressing

[0095] The main comparison content of the test...

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Abstract

The invention discloses a direct field-returning and decomposition promoting method for rice stubble and wheat straw in an area along Huaihe river, which comprises the following operating steps: (1) straw smashing and direct returning to a field; (2) application of a base fertilizer and C/N ratio regulation; (3) application of a straw decomposition agent and field-planting promoting with degradingbacteria; (4) soil rotary tillage and irrigation; and (5) transplanting of seedlings, topdressing and activation of degrading bacterium activity. The invention provides the direct field-returning anddecomposition promoting method for the rice stubble and wheat straw in the area along Huaihe river, the method has good effects of returning the straw to the field and promoting decomposition and isbeneficial to the accumulation of soil nitrogen and the increase of the crop yield.

Description

technical field [0001] The invention relates to the field of straw returning to the field, in particular to a method for directly returning rice stubble and wheat straw to fields along the Huaihe River to promote decay. Background technique [0002] Crop straw contains a large amount of organic matter and nutrients necessary for crop growth such as nitrogen, phosphorus, and potassium, which can be converted into high-quality organic fertilizers through the humification of microorganisms. A large number of research results show that straw returning can effectively improve soil physical and chemical properties, increase soil fertility, increase crop yield and fertilizer utilization rate; , Incompletely decomposed straw will have adverse effects on crop growth, leading to yield reduction. [0003] After the straw is returned to the field, it is mainly decomposed gradually under the action of soil microorganisms. Due to the low C / N ratio of microorganisms themselves, the subst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 马超柴如山叶新新王擎运庄睿花朱远芃蒋家昆朱林周静郜红建
Owner ANHUI AGRICULTURAL UNIVERSITY
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