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Method for cultivating barren sandy backfill to supplement cultivated land soil development levels

A technology for arable soil and backfilling, which is applied in the fields of land preparation methods, calcareous fertilizers, applications, etc., and can solve the problems of poor quality grade, poor structure, and low nutrient content of arable land.

Pending Publication Date: 2020-10-27
扬州市耕地质量保护站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the replenishment of cultivated land in my country basically relies on land development and consolidation to replenish cultivated land. In the process of land development and consolidation, a large number of core soils with low nutrient content and poor structure are used to backfill the surface of cultivated land, resulting in poor quality of cultivated land.
Applying a large amount of organic materials is currently the main method of fertilization, but there are problems such as high cost, long time, and poor effect

Method used

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  • Method for cultivating barren sandy backfill to supplement cultivated land soil development levels
  • Method for cultivating barren sandy backfill to supplement cultivated land soil development levels
  • Method for cultivating barren sandy backfill to supplement cultivated land soil development levels

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Effect test

Embodiment 1

[0020] A method for cultivating barren sandy backfill soil to supplement the soil development level of arable land, specifically comprising the following steps:

[0021] (1) The aggregate structure of backfill soil in the plow layer is formed rapidly

[0022] After the barren sandy backfill is leveled, 400 kg / mu of improver and 40 kg / mu of nitrogen, phosphorus and potassium compound fertilizer are spread on the soil surface. The improver is composed of calcium oxide, peat and biochar. The mass percentage of each component is: 40% of calcium oxide, 30% of peat and 30% of biochar. Immediately after spreading, use a rotary tiller to till once, with a depth of 10 cm.

[0023] (2) Start the production capacity of backfill

[0024] After rotary tillage, the soil was left to stand for 1 month to promote the formation and stability of the soil aggregate structure. Apply fertilizer and water retaining agent to the soil surface at the same time. The fertilizer is composed of vermico...

Embodiment 2

[0033] (1) The aggregate structure of backfill soil in the plow layer is formed rapidly

[0034] After the barren sandy backfill soil is leveled, 300 kg / mu of improver and 30 kg / mu of nitrogen, phosphorus and potassium compound fertilizer are spread on the soil surface. The improver is composed of calcium oxide, peat and biochar. The calcium oxide content is 60%, the peat content is 20%, and the biochar content is 20%. Immediately after spreading, use a rotary tiller to till once, with a depth of 15 cm.

[0035] (2) Start the production capacity of backfill

[0036] After rotary tillage, the soil was left to stand for 1 month to promote the formation and stability of the soil aggregate structure. Apply fertilizer and water retaining agent to the soil surface at the same time. The fertilizer consists of vermicompost organic fertilizer and nitrogen, phosphorus and potassium compound fertilizer. The amount of vermicompost organic fertilizer is 2 tons / mu, and the amount of nitr...

Embodiment 3

[0045] (1) The aggregate structure of backfill soil in the plow layer is formed rapidly

[0046]After the barren sandy backfill is leveled, 500 kg / mu of improver and 50 kg / mu of nitrogen, phosphorus and potassium compound fertilizer are spread on the soil surface. The improver is composed of calcium oxide, peat and biochar. The calcium oxide content is 50%, the peat content is 25%, and the biochar content is 25%. Immediately after spreading, use a rotary tiller to till once, with a depth of 12 cm.

[0047] (2) Start the production capacity of backfill

[0048] After rotary tillage, the soil was left to stand for 1 month to promote the formation and stability of the soil aggregate structure. Apply fertilizer and water retaining agent to the soil surface at the same time. The fertilizer consists of vermicompost organic fertilizer and nitrogen, phosphorus and potassium compound fertilizer. The amount of vermicompost organic fertilizer is 1.5 tons / mu, and the amount of nitrogen...

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Abstract

The invention discloses a method for cultivating barren sandy backfill to supplement cultivated land soil development levels. The method comprises the following steps that a plough layer backfill aggregate structure is rapidly formed; the backfill soil production capacity is started; green manure is planted once; green manure is planted for the second time, earthworms are added, and at the moment,the soil forms the profile structure characteristics of a leaching layer, a deposition layer and a parent material layer, and then the cultivation work of the soil development level is completed. According to the mode, the profile structure characteristics of the leaching layer, the deposition layer and the parent material layer in the cultivated land soil profile are obvious, the soil quality grade is remarkably improved by five levels, the soil organic matter content is increased by 7.3-10.2 times, the soil total nitrogen content is increased by 7.1-10.1 times, the soil available phosphoruscontent is increased by 4.1-5.1 times, the content of available potassium in soil is increased by 3.0-4.3 times, so that the method has important guiding significance in supplementing cultivated landsoil structure improvement, improving soil nutrients and fertilizing barren soil.

Description

technical field [0001] The invention relates to a method for cultivating typical soil development levels in the agricultural field, in particular to a method for quickly forming typical soil development levels by supplementing cultivated land with sand. Background technique [0002] Cultivated land quality construction and management is an important part of implementing the strictest arable land protection system, a fundamental guarantee for improving comprehensive agricultural production capacity and ensuring national food security, and an effective way to optimize the use of land resources and build a national ecological security barrier. The balance system of cultivated land occupation and compensation is an important part of my country's cultivated land protection system, ensuring the red line of 1.8 billion mu of cultivated land in my country. While ensuring the area of ​​cultivated land, the emphasis on the quality of cultivated land has been continuously strengthened....

Claims

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Application Information

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IPC IPC(8): A01B79/02C05G3/80C05G1/00
CPCA01B79/02C05G3/80C05D3/02C05D1/00C05D9/00C05F11/02C05F3/00
Inventor 毛伟李文西赵海涛陈明徐迅燕居静宓文海王娟娟
Owner 扬州市耕地质量保护站
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