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Nutrient soil and application of soil in sand control and greening

A nutrient soil and landscaping technology, which is applied to nutrient soil and its application in sand control and greening, can solve the problems of low nutrient content in desertified soil, easy loss of nutrients and water, and achieve the effect of strengthening sand control, The effect of improving the ability of conservation and moisture preservation and optimizing the living conditions

Active Publication Date: 2020-09-15
BEIJING DRAINAGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems of low content of nutrient elements in desertified soil, easy loss of nutrients and water, inhibition of seed germination, normal growth of plants and restoration of vegetation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The experimental site is located in Chaoyang District, Beijing. The experimental soil comes from the sandy soil in the desertification area of ​​Zhangjiakou City, Hebei Province. The experimental area is 1m long, 1m wide, and 0.7m deep.

[0059] 1) Original soil test: soil pH value 8.54, total phosphorus content 0.41g / kg, total nitrogen 0.46g / kg, total potassium 13.7g / kg, organic matter 7.10g / kg, available phosphorus 1.8g / kg, ammonium nitrogen 3.04 g / kg, nitrate nitrogen 4.89g / kg, available potassium 73.7g / kg, total salt content 0.13g / kg, seed germination rate 61.22% (tall fescue and ryegrass seeds, weight ratio is 4:3);

[0060] 2) Preparation of nutrient soil: 73 parts of advanced anaerobic digestion sludge, 12 parts of sludge-based biochar soil, 5 parts of carbonized sludge, 4 parts of potassium fulvic acid, 6 parts of polyacrylamide, each component was crushed and mixed;

[0061] 3) Fertilization treatment: According to the volume of the experimental area, first fil...

Embodiment 2

[0065] The experimental site is located in Chaoyang District, Beijing. The experimental soil comes from the sandy soil in the desertification area of ​​Zhangjiakou City, Hebei Province. The experimental area is 1m long, 1m wide, and 0.7m deep.

[0066] 1) Original soil test: soil pH value 8.54, total phosphorus content 0.41g / kg, total nitrogen 0.46g / kg, total potassium 13.7g / kg, organic matter 7.10g / kg, available phosphorus 1.8g / kg, ammonium nitrogen 3.04 g / kg, nitrate nitrogen 4.89g / kg, available potassium 73.7g / kg, total salt content 0.13g / kg, plant height (black wolfberry plant) increased by 52.16% after 1 year of planting in original soil;

[0067] 2) Preparation of nutrient soil: 70 parts of advanced anaerobic digestion sludge, 15 parts of sludge-based biochar soil, 5 parts of carbonized sludge, 3.5 parts of potassium fulvic acid, 6.5 parts of polyacrylamide, each component was crushed and mixed;

[0068] 3) Fertilization treatment: According to the volume of the experime...

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Abstract

The invention discloses a nutrient soil and application of the soil in sand control and greening. The raw material composition of the nutrient soil comprises: 70-80 parts by weight of advanced anaerobic digestion sludge, 5-15 parts by weight of sludge-based biochar soil, 2-5 parts by weight of carbonized sludge, 2.5-5 parts by weight of potassium fulvic acid, and 5-10 parts by weight of polyacrylamide. According to the present invention, sandy soil nutrient, soil bacterial community diversity, species richness and species composition uniformity are improved, the sandy soil nutrient grade is upgraded from the original level 6 to more than level 2; compared with the original soil, the total amount of nitrogen, phosphorus and potassium in the soil increases by 97.08%, the organic content increases by 119.86%, the water content increases by 65.22%, the quality of sandy soil is significantly improved, and the capacity of soil fertility and water retention are greatly improved; and after the application of the nutrient soil of the invention, the heavy metal pollution degree and potential pollution risk of the soil are both low, and the soil is in a safe state.

Description

technical field [0001] The invention belongs to the field of desertification soil control, and more specifically relates to a nutrient soil and its application in sand control and green planting. Background technique [0002] With the acceleration of the modernization process and the increase of the population, land is abused, over-cutting, over-reclamation and over-grazing cause vegetation damage, which intensifies the process of soil desertification. In the process of land desertification, under the action of wind erosion and screening, the content of fine particulate matter in the soil will decrease, while the proportion of sand particles will increase, which will seriously degrade the soil structure, significantly reduce the aggregate structure, loss of organic matter and nutrients, and water conservation. Decreased fat capacity. The content of organic matter, total nitrogen, total phosphorus, alkali-hydrolyzable nitrogen and available phosphorus in the sandy soil has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/20A01G24/30A01G24/10A01G24/22A01G22/00A01G17/00
CPCA01G24/20A01G24/30A01G24/10A01G24/22A01G22/00A01G17/005
Inventor 魏琳琳蒋勇王佳伟李伟付兴民文洋李烨
Owner BEIJING DRAINAGE GRP CO LTD
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