Method for improving low-organic-matter soil
A technology of organic matter and organic matter content, applied in soil preparation methods, agricultural machinery and tools, agriculture, etc., can solve problems such as costing a lot of money and time, complex improvement measures, etc., to achieve simple operation, improve water and fertilizer retention capacity, and realize resource conservation. The effect of chemical utilization
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[0019] Example 1:
[0020] (1) Characteristics of low organic matter soil
[0021] The object of improvement in this embodiment is poor soil with a soil organic matter content of less than 1%, and its typical characteristics are: bulk density 1.0~1.2g / cm 3 , The moisture content is 3 to 5%, the pH is 7.5 to 8.0, and the organic content is 0.5 to 0.75%.
[0022] (2) Characteristics of stable leachate
[0023] The leachate selected in this embodiment is the leachate of a domestic waste landfill that is stored stably by a regulated storage tank, and its typical characteristics are: pH: 8.0-8.3; alkalinity: 8000-9000 mgCaCO3 / L; COD Cr :4000~4200mg / L; BOD 5 : 120~150mg / L, B / C (biochemical oxygen demand: chemical oxygen demand) is 0.03.
[0024] (3) Composition ratio
[0025] In the present invention, the mass ratio of low organic matter soil to leachate is 2.5-5.3, that is, the soil moisture content after mixing is 16-28%, and the low organic matter soil content is 72-84%. In this embodiment...
Example Embodiment
[0036] Example 2:
[0037] (1) Characteristics of low organic matter soil
[0038] The object of improvement in this embodiment is poor soil with a soil organic matter content of less than 1%, and its typical characteristics are: bulk density 1.2~1.5g / cm 3 , The moisture content is 6-8%, the pH is 7.8-8.2, and the organic matter content is 0.7-0.9%.
[0039] (2) Characteristics of stable leachate
[0040] The leachate selected in this embodiment is the leachate of a domestic waste landfill that has been stably stored in a regulated storage tank. The typical characteristics are: pH 7.5-8.0; alkalinity 7000-8000 mgCaCO 3 / L; COD Cr 5000~5500mg / L; BOD 5 150~200mg / L; B / C 0.03.
[0041] (3) Composition ratio
[0042] In the present invention, the mass ratio of low organic matter soil to leachate is 2.5-5.3, that is, the soil moisture content after mixing is 16-28%, and the low organic matter soil content is 72-84%. In this embodiment, the mass ratio of low organic matter soil to leachate i...
Example Embodiment
[0052] Example 3:
[0053] (1) Characteristics of low organic matter soil
[0054] The object of improvement in this embodiment is poor soil with a soil organic matter content of less than 1%, and the typical characteristics are: bulk density 1.4~1.7g / cm 3 , Water content is 8-10%, pH is 8.2-8.5, organic matter content is 0.6-0.8%. .
[0055] (2) Characteristics of stable leachate
[0056] The leachate selected in this embodiment is the leachate of a domestic waste landfill that has been stably stored in a regulated storage tank, and its typical characteristics are: pH 7.5-7.8; alkalinity 7000-7500mgCaCO 3 / L; COD Cr :6000~6500mg / L; BOD 5 150~170mg / L; B / C 0.025.
[0057] (3) Composition ratio
[0058] In the present invention, the mass ratio of low organic matter soil to leachate is 2.5-5.3, that is, the soil moisture content after mixing is 16-28%, and the low organic matter soil content is 72-84%. In this embodiment, the mass ratio of low organic matter soil to leachate is 3:1, and ...
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