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Method for applying organic fertilizer based on heavy metal load of farmland soil

A heavy metal and organic fertilizer technology, applied in fertilization methods, soil preparation methods, agricultural machinery and tools, etc., can solve the problems of excessive heavy metal content in livestock and poultry manure and low bioavailability, so as to prevent soil heavy metal pollution, ensure the safety of agricultural products, high precision effect

Inactive Publication Date: 2019-02-01
INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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  • Description
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  • Application Information

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Problems solved by technology

In the process of intensive farming, additives containing heavy metals are widely used in feed, but due to their low bioavailability, most of the heavy metals are excreted with feces, resulting in excessive heavy metal content in livestock and poultry feces

Method used

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  • Method for applying organic fertilizer based on heavy metal load of farmland soil
  • Method for applying organic fertilizer based on heavy metal load of farmland soil
  • Method for applying organic fertilizer based on heavy metal load of farmland soil

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Embodiment

[0022] refer to Figure 1-4 , the present embodiment proposes a method for the amount of organic fertilizer based on farmland soil heavy metal load, comprising the following steps:

[0023] S1. Selection of test materials: first select the test plot, the soil parent material of the test plot is flood alluvium, the soil type is clay loamy flood alluvial calcareous cinnamon soil, and pig manure organic fertilizer is applied;

[0024] S2. Experimental treatment: set conventional chemical fertilizer treatment and pig manure gradient treatment on the selected test plot, set several repeated treatments for each treatment, and set up multiple test areas corresponding to conventional chemical fertilizer treatment and pig manure gradient treatment , are all randomly arranged, and the test area is separated by field ridges in the north-south direction, and separated by plastic plates in the east-west direction;

[0025] S3, sample collection: collect soil samples when the wheat is matu...

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Abstract

The invention discloses a method for applying an organic fertilizer based on heavy metal load of farmland soil. The method includes the following steps: S1: selection of test materials: firstly, a test plot is selected, a soil parent material of the test plot is flood alluvial, the soil type is clay alluvial calcareous cinnamon soil, and a pig manure organic fertilizer is applied; S2. test treatment: the conventional chemical fertilizer treatment and the pig manure amount gradient treatment are set on the selected test plot, several repetitions can be set for each treatment, multiple test zones corresponding to the conventional chemical fertilizer treatment and the pig manure amount gradient treatment are set with random arrangement, and the test zones can be separated from the north and south by fields and separated from the east and west by plastic plates; and S3. sample collection: soil samples are taken at a maturity stage of the wheat. The method quantitatively studies the influence laws of heavy metals such as Cu, Zn, Cr and Cd accumulated in the soil after continuous application of the pig manure organic fertilizer, provides a scientific basis for controlling heavy metal pollution of farmland soil from the source, and is suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of soil prevention and control, in particular to a method for applying the amount of organic fertilizer based on the heavy metal load of farmland soil. Background technique [0002] In recent years, with the rapid development of my country's economy, the livestock and poultry breeding industry has gradually shifted from small-scale farming to intensive farming, and the annual growth rate of breeding scale and output value has exceeded 10%. At the same time, the waste generated by the livestock and poultry breeding industry has increased rapidly, causing serious pollution to the environment. Livestock and poultry manure has been used as a soil improvement material for hundreds of years. Appropriate application can improve soil physical and chemical properties, improve soil fertility, and increase crop yield. The main sources of soil heavy metals in farmland are fertilizer application, atmospheric dustfall an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01B79/02
CPCA01C21/005A01B79/02
Inventor 茹淑华徐万强孙世友侯利敏张国印刘孟朝王凌
Owner INST OF AGRI RESOURCES & ENVIRONMENT HEBEI ACADEMY OF AGRI & FORESTRY SCI
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