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Method for returning straws to field

A straw and treatment liquid technology, which is applied in crop processors, cutters, agricultural machinery and implements, etc., can solve the problems of aggravating wheat root diseases, difficult decomposition of straw, and long period of decomposition and transformation.

Active Publication Date: 2015-10-21
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high multi-cropping index in my country, the short stubble time interval, and the high C / N ratio of straw, it is difficult for straw to be micro-decomposed in a natural state. During the corn harvest period in some northern regions, the temperature is generally 10-15°C, and straw decomposition is even more difficult. It is more difficult, which leads to a long cycle of decomposing and transforming corn stalks in the soil after returning to the field, making it difficult to be used as a fertilizer source for current crops; in addition, long-term returning of corn stalks to the field aggravates the occurrence of root diseases of wheat

Method used

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  • Method for returning straws to field

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Effect test

Embodiment 1

[0023] A method for returning straw to field, comprising the following steps:

[0024] Step 1, collecting stalks, drying and pulverizing;

[0025] Step 2, soaking the crushed straw in step 1 in the treatment solution;

[0026] Step 3, after filtering and removing the soaking liquid obtained in step 2, cooking the straw;

[0027] Step 4, bury the straw cooked in step 3 into a field ditch, apply organic fertilizer, and cover with soil for suppression.

[0028] The particle size of the pulverized straw obtained in step 1 is 3 cm.

[0029] The amount of treatment solution per 1kg of straw in step 2 is 5L

[0030] The treatment solution in step 2 is nicotinamide, NaHCO 3 , myristamidopropyl dimethylamine, sodium alginate, propylene glycol, formic acid mixed aqueous solution, wherein, niacinamide 25g / L, NaHCO 3 10g / L, myristamidopropyl dimethylamine 5g / L, sodium alginate 12g / L, propylene glycol 10mL / L, formic acid 20mL / L.

[0031] In step 2, the soaking temperature is 40° C., ...

Embodiment 2

[0036] A method for returning straw to field, comprising the following steps:

[0037] Step 1, collecting stalks, drying and pulverizing;

[0038] Step 2, soaking the crushed straw in step 1 in the treatment solution;

[0039] Step 3, after filtering and removing the soaking liquid obtained in step 2, cooking the straw;

[0040] Step 4, bury the straw cooked in step 3 into a field ditch, apply organic fertilizer, and cover with soil for suppression.

[0041] The particle size of the pulverized straw obtained in step 1 is 4 cm.

[0042] The amount of treatment solution per 1 kg of straw in step 2 is 7 L.

[0043] The treatment solution in step 2 is nicotinamide, NaHCO 3 , myristamidopropyl dimethylamine, sodium alginate, propylene glycol, formic acid mixed aqueous solution, of which, nicotinamide 38g / L, NaHCO 3 15g / L, myristamidopropyl dimethylamine 9g / L, sodium alginate 22g / L, propylene glycol 35mL / L, formic acid 60mL / L.

[0044] In step 2, the soaking temperature is 48°...

Embodiment 3

[0049] A method for returning straw to field, comprising the following steps:

[0050] Step 1, collecting stalks, drying and pulverizing;

[0051] Step 2, soaking the crushed straw in step 1 in the treatment solution;

[0052] Step 3, after filtering and removing the soaking liquid obtained in step 2, cooking the straw;

[0053] Step 4, bury the straw cooked in step 3 into a field ditch, apply organic fertilizer, and cover with soil for suppression.

[0054] The particle size of the pulverized straw obtained in step 1 is 5 cm.

[0055] The amount of treatment liquid per 1 kg of straw in step 2 is 10 L.

[0056] The treatment solution in step 2 is nicotinamide, NaHCO 3 , myristamidopropyl dimethylamine, sodium alginate, propylene glycol, formic acid mixed aqueous solution, in which, nicotinamide 55g / L, NaHCO 340g / L, myristamidopropyl dimethylamine 12g / L, sodium alginate 30g / L, propylene glycol 50mL / L, formic acid 70mL / L.

[0057] In step 2, the soaking temperature is 55° ...

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Abstract

The invention discloses a method for returning straws to a field. According to the method, straws are collected, naturally dried and crushed; the crushed straw is soaked in a treatment solution; filtering is carried out, and the soaking solution is removed; the straw is steamed; the steamed straw is buried in field ditches; an organic fertilizer is applied, and soil is used for covering and is compacted. According to the invention, the straw is crushed, soaked in the treatment solution and is steamed; a composite synergist (o-nitro phenol sodium, polyaspartic acid, potentilla anserine, gibberellin, hydroxyacetamide, and sodium tripolyphosphate) is added to the organic fertilizer; with microbes in the soil, lignin in the straw can be fully degraded, and straw decomposition efficiency is greatly improved. Therefore, straw returning time is shortened, and the occurrence of wheat root diseases under a corn straw returning condition is reduced.

Description

technical field [0001] The invention belongs to the technical field of crop application, and in particular relates to a method for returning straw to the field. Background technique [0002] In recent years, with the progress of the times and social development, the rational utilization of straw resources has attracted more and more attention. On the one hand, as a traditional energy material, straw is gradually replaced by energy materials such as petroleum and natural gas; on the other hand, the yield per unit area of ​​crops is continuously increasing, resulting in more and more remaining straw. At present, the annual total output of various crop straws in my country is about 700 million tons. At the same time, due to the lack of easy and effective utilization methods for rice stalks, farmers often use the method of direct burning in the field to deal with excess crop stalks (mostly corn, rice, and wheat stalks) in order to save labor and rush to farm time. This will no...

Claims

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Application Information

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IPC IPC(8): A01D82/00
Inventor 张丛志赵金花张佳宝赵占辉蔡太义丁宁宁吴其聪宁琪
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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