Method for improving saline-alkali soil by utilizing biological waste compost

A saline-alkali land and bio-fertilizer technology, which is applied in the field of improving saline-alkali soil with waste bio-composting, can solve problems such as pollution and green waste disposal difficulties, achieve the effects of increasing the absorption area, avoiding heavy metal content exceeding the standard, and increasing sugar content

Inactive Publication Date: 2011-06-01
TIANJIN CITY CENTSTAGE TECH INCUBATOR COMPANY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use the sorted garbage, animal and plant residues, kitchen waste and sludge for biological composting, which effectively solves the difficulty of green garbage disposal and the pollution of water quality, air and soil caused by landfill and incineration

Method used

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  • Method for improving saline-alkali soil by utilizing biological waste compost
  • Method for improving saline-alkali soil by utilizing biological waste compost

Examples

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Embodiment Construction

[0011] The domestic waste is sorted and processed, and the kitchen waste, animal and plant residues, and sludge after wastewater treatment are used for composting.

[0012] 1. On saline-alkali land, the soil bulk density decreases, the porosity increases, the water storage capacity increases, and the compactness decreases when the amount of fertilizer increases by 0-20 cm. The soil particles smaller than 1mm on the alkaline land increase significantly, and the improvement effect on the saline-alkali land is remarkable.

[0013] 2. The application of biological compost can significantly increase the soil organic matter and mineral nutrients such as alkaline nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and total potassium in saline-alkali land, which can speed up the restoration and reconstruction of degraded soil ecosystems, and can significantly improve Lower the pH of saline soils.

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Abstract

The invention provides a method for improving saline-alkali land by utilizing a biological organic fertilizer. The method comprises the following steps of: classifying domestic waste; and composting kitchen waste, animal and plant debris and slurry from wastewater treatment. The application of the biological waste compost can obviously increase the organic matter and the mineral nutrients of alkali-hydrolyzable nitrogen, quick-acting phosphorus, quick-acting potassium, total nitrogen, total phosphorus, total potassium, and the like in saline-alkali land soil, accelerate the recovery and the reconstruction of a degenerated soil ecosystem, remarkably lower the pH value of the saline-alkali land, greatly increase the number of microorganisms in the saline-alkali land soil, strengthen the soil activity and speed up the land capability restoration. Through the invention, physiological active substances are generated to nourish and strengthen seedlings and fruits and stimulate the high yield and quality of crops; and the residual pesticides and fertilizers are degraded, the sugar degree is increased, the quality is improved, and nuisanceless and environment-friendly foods can be produced.

Description

technical field [0001] The invention provides a method for improving saline-alkali land by bio-composting common rubbish and waste. The physical and chemical properties of the improved saline-alkali land are obviously improved, the activity of the soil is greatly enhanced, and the recovery of soil fertility is accelerated at the same time. The invention belongs to the technical field of environmental protection, solid waste treatment and comprehensive utilization. Background technique [0002] With the rapid development of agricultural and forestry production and the rapid development and utilization of land resources, the problems of soil salinization and secondary salinization are becoming more and more serious. This requires us to strengthen the research work on the improvement of saline-alkali land, and further explore new methods and techniques for improving and utilizing saline-alkali land. [0003] The high salinity and ion toxicity of the saline-alkali soil make it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00C05F17/00
CPCY02W30/40
Inventor 朱红杰张杰赵会兰郭成铁彭静杨雅楠薄涛王维烨侯建柱张书维郭庆林
Owner TIANJIN CITY CENTSTAGE TECH INCUBATOR COMPANY
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