Method for returning autumn rice straw to field in cold regions

A technology for rice straw and straw, which is applied in the fields of land preparation methods, applications, agricultural machinery and implements, etc., can solve the problems of difficult popularization and application of the technology, and achieve the effects of improving the nutrient release rate, improving the quality of paddy soil, and improving the rate of decomposing.

Active Publication Date: 2020-04-10
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, scientific researchers have conducted a lot of research work on straw returning to the field, and developed a series of straw returning technologies at the same time, and related technologies have also been promoted. Due to the low temperature in the rice planting area, it is difficult to popularize and apply related technologies

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  • Method for returning autumn rice straw to field in cold regions
  • Method for returning autumn rice straw to field in cold regions
  • Method for returning autumn rice straw to field in cold regions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: The method for returning rice stalks to the field in autumn in the cold region of the present embodiment comprises the following steps:

[0014] (1) Preparation of indigenous mixed bacterial solution for straw degradation

[0015] Mix the rice straw of the current season with the soil of the paddy field; water the rice straw to soak it, and keep the soil in a moist state; maintain it for 10 days, collect highly rotten rice straw; put the highly rotten rice straw in the cellulose liquid medium, Cultivate at 14°C for 10 days to obtain a mixed bacterial mother liquid; add the mixed bacterial mother liquid to a cellulose liquid medium fermenter for expanded cultivation, use 1% of the mother liquid, cultivate at a temperature of 8°C, and obtain a mixed bacterial liquid after culturing for 20 days.

[0016] (2) Decomposition of straw returning to the field

[0017] Harvest rice with a harvester with the function of crushing straw, and the length of the straw af...

Embodiment 2

[0018] Embodiment 2: The method for returning rice stalks to the field in autumn in the cold region of this embodiment comprises the following steps:

[0019] (1) Preparation of indigenous mixed bacterial solution for straw degradation

[0020] Mix the rice straw of the current season with the soil of the paddy field; water the rice straw to soak it and keep the soil in a moist state; maintain it for 12 days, collect highly rotten rice straw; put the highly rotten rice straw in the cellulose liquid medium, Cultivate at 8°C for 20 days to obtain a mixed bacterial mother liquid; add the mixed bacterial mother liquid to a cellulose liquid medium fermenter for expanded cultivation, the amount of mother liquid is 3%, the culture temperature is 14°C, and the mixed bacterial liquid is obtained after culturing for 10 days.

[0021] (2) Decomposition of straw returning to the field

[0022] Harvest rice with a harvester with the function of crushing straw, and the length of the straw ...

Embodiment 3

[0023] Embodiment 3: The method for returning rice stalks to the field in autumn in the cold region of this embodiment comprises the following steps:

[0024] (1) Preparation of indigenous mixed bacterial solution for straw degradation

[0025] Mix the rice straw of the current season with the soil of the paddy field; water the rice straw to soak it and keep the soil in a moist state; maintain it for 15 days and collect highly rotten rice straw; place the highly rotten rice straw in a cellulose liquid medium, Cultivate at 12°C for 15 days to obtain a mixed bacterial mother liquid; add the mixed bacterial mother liquid to a cellulose liquid medium fermenter for expanded cultivation, use 5% of the mother liquid, cultivate at a temperature of 12°C, and obtain a mixed bacterial liquid after culturing for 15 days.

[0026] (2) Decomposition of straw returning to the field

[0027] Harvest rice with a harvester with the function of crushing straw, and the length of the straw after ...

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Abstract

The invention discloses a method for returning autumn rice straw to field in cold regions. The method comprises the following steps of preparing straw degradation indigenous mixed bacterium liquid: mixing rice straw with paddy soil, performing watering, soaking the straw, besides, enabling soil to be under the damp condition, after 10-15 days, placing collected rotten straw in cellulose liquid culture mediums, performing culture to obtain mixed bacterium mother liquid, adding the mixed bacterium mother liquid to the cellulose liquid culture mediums, and performing enlarged cultivation to obtain the mixed bacterium liquid; and performing straw returning to fields for decomposition: spraying the mixed bacterium liquid on the surfaces of the crushed and soaked straw, besides, sprinkling organic fertilizers, performing rotary tillage, and performing watering. By the method, the decomposition rate is promoted by 240%-330%, the nutrient releasing rate is promoted by 57%-210%, and the methodhas important significance in straw resource utilization and increase of paddy soil quality.

Description

technical field [0001] The invention relates to a method for returning straws to fields, in particular to a method for returning rice straws to fields in cold regions in autumn. Background technique [0002] Rice is the main food crop, and the disorderly disposal of a large amount of straw after rice harvest has caused huge damage to the environment, and also caused a waste of straw nutrient resources. In the rice areas with high temperature, the rice straw returning to the field is vigorously promoted, while the temperature in the cold area is too low, which makes it difficult to solve the problem of difficult straw decomposition, and it is difficult to realize a large amount of straw and rapid decomposition. [0003] Straw is a by-product that can be used as a resource in the farmland ecological environment. It contains nutrients such as nitrogen, phosphorus, potassium, calcium, magnesium and organic matter required for plant growth. It is the basis for the recycling and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02Y02W30/40
Inventor 高强宓文海夏斯琦赵海涛毛伟居静王娟娟姚粉霞
Owner YANGZHOU UNIV
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