Improving method for rapidly improving soil organic matter in saline-alkaline land paddy field

A technology for saline-alkali land and organic matter, applied in land preparation methods, agricultural machinery and implements, applications, etc., can solve problems such as being difficult to achieve, and achieve the effects of improving land productivity, low cost, and significant yield increase effect.

Inactive Publication Date: 2018-04-13
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional methods to quickly increase soil organic matter, such as planting green manure crops, returning straw to the field, and adding organic fertilizers, are difficult to achieve in reclamation and rice cultivation on saline-alkali land due to the influence of soil salinity, climatic conditions, and shortage of organic fertilizer sources.

Method used

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  • Improving method for rapidly improving soil organic matter in saline-alkaline land paddy field
  • Improving method for rapidly improving soil organic matter in saline-alkaline land paddy field
  • Improving method for rapidly improving soil organic matter in saline-alkaline land paddy field

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specific Embodiment approach 1

[0018] Specific implementation mode 1: The improvement method of this implementation mode to rapidly increase the organic matter of paddy field soil in saline-alkali land is implemented according to the following steps:

[0019] 1. Use urban domestic sludge and livestock and poultry manure as organic materials, and obtain harmless organic materials through harmless treatment. After fully mixing the harmless organic materials and calcium ion displacing agent, dry and granulate, get modifiers;

[0020] 2. According to the amount of 2-3 tons per mu of paddy field, spread the modifier evenly on the surface of the flattened paddy field, use a rotary tiller to plow the surface soil with a thickness of 10-15cm for mixing, and then inject water into the paddy field to a depth of 5-8cm. Rake the ground with a pulper, stir the surface mud evenly, settle and drain while injecting new water at the same time to wash the salt and drain the alkali, repeat the salt washing and draining the al...

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that the detoxification treatment described in step 1 is high-temperature sterilization. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass content of the organic matter in the harmless organic material in Step 1 is 25%-30%. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses an improving method for rapidly improving soil organic matter in a saline-alkaline land paddy field, and relates to a method for improving soil organic matter in a soda saline-alkaline land paddy field. The method aims to solve the problems of soda saline-alkaline soil that the organic matter content is low, the fertilizer retention performance is poor, the yield is difficult to improve after rice is planted, and the loss is serious after a chemical fertilizer is applied. The improving method comprises the following steps: 1, fully mixing a harmless organic material anda calcium ion displacer to obtain a modifier; 2, sprinkling the modifier at the surface of the flattened paddy field, ploughing topsoil for mixing, injecting water into the paddy field, performing precipitation while discharging water, and repeatedly performing salt washing and alkali discharging to obtain an improved and salt-washed field; and 3, performing rice transplanting operation, and in the growth period of rice seedlings, changing water for 3-4 times a month for discharging salts and reducing alkalis to complete the soil improvement of the saline-alkali land paddy field. The method provided by the invention pays attention to the problem of soil saline-alkali damage and poor land fertility, salt discharge and alkali reduction are combined with soil fertility improvement, so that salts in the soil are rapidly removed and alkalis in the soil are reduced, the yield of the rice can be improved by 20%-25%, and the usage amount of a chemical fertilizer can be reduced by 10%-15%.

Description

technical field [0001] The invention relates to a method for improving soil organic matter in paddy fields in soda saline-alkali land. Background technique [0002] Soda saline-alkali soil not only has high saline-alkali content, poor permeability, poor physical and chemical properties, but also low soil fertility. Taking soil organic matter as an example, the organic matter content of soda saline-alkali soil is only 41.6% to 77.4% of that of non-saline soil in the same area, and its fertilizer and water retention performance and plowability are poor. Rice diversion in soda saline-alkali land is a successful example of biological improvement of saline-alkali land, but the one-time input cost of saline-alkali land improvement is high, and rice production has been at the level of low-yield farmland for a long time, resulting in an unreasonable ratio of output to input and low economic benefits, which seriously plagued the health of agriculture in saline-alkali land develop. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 黄立华张璐
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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