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Method of repairing and improving secondary salinized soil in facility agriculture

A secondary salinization and soil remediation technology, which is applied in the field of secondary salinization soil remediation and improvement in facility agriculture, can solve the problems of slow effect of straw method, polluted groundwater, and lack of soil nutrients, etc., to promote water permeability, breathability, Effect of reducing salt content and promoting utilization

Inactive Publication Date: 2017-08-04
KANG SHUNDA SUZHOU AGRI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these three methods all have certain disadvantages. The irrigation and salt washing method will cause the lack of nutrient elements in the soil, and in severe cases, it will pollute the groundwater; Move up to the surface; the effect of adding straw is slow, and the required period is long

Method used

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  • Method of repairing and improving secondary salinized soil in facility agriculture
  • Method of repairing and improving secondary salinized soil in facility agriculture
  • Method of repairing and improving secondary salinized soil in facility agriculture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In this embodiment, the per-mu application rate of quicklime is 10 kg, the per-mu application rate of organic fertilizer is 1000 kg, and the per-mu application rate of plant ash is 30 kg.

[0052] The following table is the soil pH value comparison and the salt content comparison before and after the treatment of the present embodiment (wherein, the salt content is the percentage of the quality of the salt contained in the soil to the dry soil mass):

[0053] Table 1 Comparison of soil pH value and salt content before and after treatment in Example 1

[0054] project before processing after treatment Soil pH 6.0 6.8 soil salinity 0.67％ 0.21％

[0055] As can be seen from the above table, the pH value of the soil treated in this embodiment becomes significantly larger, and the soil changes from an acidic soil unsuitable for crop growth to a neutral soil suitable for crop growth, and the salt content is also significantly reduced. It has dro...

Embodiment 2

[0061] In this embodiment, the per-mu application rate of quicklime is 30 kg, the per-mu application rate of organic fertilizer is 1500 kg, and the per-mu application rate of plant ash is 50 kg.

[0062] The following table is the soil pH value comparison and the salt content comparison before and after the treatment of the present embodiment (wherein, the salt content is the percentage of the quality of the salt contained in the soil to the dry soil mass):

[0063] Table 3 Comparison of soil pH value and salt content before and after treatment in Example 2

[0064]

[0065]

[0066] As can be seen from the above table, the pH value of the soil treated in this embodiment becomes significantly larger, and the soil changes from an acidic soil unsuitable for crop growth to a neutral soil suitable for crop growth, and the salt content is also significantly reduced. It has dropped below 0.3%, which is more suitable for the growth of crops.

[0067] Cauliflower, cucumber, and...

Embodiment 3

[0072] In this embodiment, the per-mu application rate of quicklime is 50 kg, the per-mu application rate of organic fertilizer is 1200 kg, and the per-mu application rate of perlite is 20 kg.

[0073] The following table is the soil pH value comparison and the salt content comparison before and after the treatment of the present embodiment (wherein, the salt content is the percentage of the quality of the salt contained in the soil to the dry soil mass):

[0074] Table 5 Comparison of soil pH value and salt content before and after treatment in Example 3

[0075] project before processing after treatment Soil pH 5.5 7.2 soil salinity 0.69％ 0.18％

[0076] As can be seen from the above table, the pH value of the soil treated in this embodiment becomes significantly larger, and the soil changes from an acidic soil unsuitable for crop growth to a neutral soil suitable for crop growth, and the salt content is also significantly reduced. It has dropp...

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Abstract

The invention discloses a method of repairing and improving secondary salinized soil in facility agriculture. The method comprises the following steps of: (1) scattering a pH adjustor in a corresponding quantity into soil according to a detection result of pH value of soil; (2) performing rotary tillage on the soil; (3) thoroughly watering the soil and airing the soil; (4) scattering a first fertilizer into the soil; (5) scattering a loosening agent into the soil and performing rotary tillage again on the soil; (6) uniformly mixing leguminous plant seeds and nodule bacteria to form mixed plant seeds; (7) sowing the mixed plant seeds into the soil and watering the seeds; (8) when the leguminous plants grown from the mixed plant seeds grow to 15-25cm, performing total crop return on the leguminous plants; (9) scattering a second fertilizer into the soil; and (10) planting salt-absorbing crops in the soil and harvesting the crops. By means of the steps, the method disclosed by the invention can effectively adjust the pH value of the soil, reduce soil hardening, reduce the residual salt content in the soil and improve the utilization ratio of the soil, so that the crops grow more favorably.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for repairing and improving secondary salinized soil in facility agriculture. Background technique [0002] Facility agriculture is a modern agricultural method that uses engineering technology to efficiently produce animals and plants under relatively controllable conditions. The use of facility agriculture can greatly increase crop yields, bring rich economic returns to farmers, and achieve significant economic and social benefits. [0003] However, protected agriculture has changed the ecological environment of the soil. The soil is often in an environment of high temperature, high humidity, high evaporation, and no rainwater leaching, and a large amount of fertilizer is used, which leads to the emergence of secondary salinization of the soil. Soil secondary salinization will greatly affect the growth of crops, mainly reflected in: (1) when the total ...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 高宇
Owner KANG SHUNDA SUZHOU AGRI SCI & TECH CO LTD
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