Method of using biogas slurry to treat continuous cropping obstacles of greenhouse soil

A soil continuous cropping obstacle and biogas slurry technology, applied in the fields of land preparation methods, applications, agricultural machinery and implements, can solve problems such as poor economy and poor operability, and achieve the goal of enhancing soil fertility, alleviating soil acidification, and eliminating continuous cropping obstacle factors. Effect

Active Publication Date: 2012-06-20
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has multiple effects in one to solve the continuous cropping obstacles of greenhouse soil, enhance soil fertility, alleviate soil acidification, and promote the normal operation of biogas projects, and overcomes the shortcomings of poor operability and economical efficiency of existing technologies.

Method used

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  • Method of using biogas slurry to treat continuous cropping obstacles of greenhouse soil

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Example 1: Correction of soil continuous cropping obstacles in tomato greenhouses

[0043] (1) In the greenhouse where tomatoes have been planted continuously for 7 years, the soil continuous cropping obstacles are obvious. Choose the slack period of the greenhouse, and plant the whole row along the shed in the shed. The width of each row is 45 cm, and the two sides are ridges with a height of 15 cm and a width of 15 cm. The furrows are formed into slightly sloped troughs with a longitudinal slope of 4°, and covered with plastic film, including all ridges and furrows;

[0044] (2) The biogas slurry is taken from the biogas station of the normal centralized gas supply biogas project, and the biogas slurry is directly pumped from the anaerobic fermentation tank into the tanker and transported to the outside of the greenhouse.

[0045] (3) Place the biogas slurry outlet pipe directly under the intima membrane, adjust the biogas slurry flow rate so as not to wash up the so...

Embodiment 2

[0069] Example 2: Using biogas slurry to correct continuous cropping obstacles in Shouguang cucumber greenhouses, the steps are as follows:

[0070] In a greenhouse in Wamiao Village, Gucheng Township, Shouguang City, cucumbers have been continuously planted in the greenhouse for 9 years, and continuous cropping obstacles are obvious. Select 200m in the shed starting 9th July 2009 2 The plots are planted along the whole row, and the width of each row is 45cm, and the two sides are ridges with a height of 15cm and a width of 15cm. The furrows are formed into grooves with a slope of 4-7°, and ordinary mulch is used to cover the furrows. The biogas slurry was taken from 3 household biogas digesters with good fermentation in the local area. The biogas digesters were mainly composed of cow dung, rotten vegetable leaves, and human and animal manure. The shed and soil are plowed, and the application of basal fertilizer is the same as the customary fertilization of farmers. After t...

Embodiment 3

[0075] Example 3: Using biogas slurry to correct continuous cropping obstacles in Taian cucumber greenhouses, the steps are as follows:

[0076] The experiment was conducted in a greenhouse in Dagoutou Village, Shengzhuang Town, Tai’an City. Cucumbers had been continuously planted in the greenhouse for 7 years. Since the 5th year of planting, the continuous cropping obstacles in the greenhouse gradually became obvious. Production cuts were close to 50%. Selected 330m in the shed starting June 20, 2007 2 (10m×33m) plots, along the planting row, and the previous crop planting soil is placed at the bottom of the border. The width of each furrow is 45 cm, and both sides are ridges with a height of 15 cm and a width of 15 cm. The furrows are formed into grooves with a slope of 4-7°, and ordinary mulch is used to cover the furrows.

[0077] The biogas slurry is obtained from 3 household biogas digesters with good fermentation in the local area. The biogas digesters use cow dung a...

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Abstract

The invention relates to a method of using biogas slurry to treat continuous cropping obstacles of greenhouse soil, which includes: ridging greenhouse soil, preparing biogas slurry, mulching for flooding, retaining a greenhouse closed at high temperature, and turning the soil; mulching after ridging; using fresh biogas slurry to directly flood under the mulch of ridges; sun-drying for 2-4 days after biogas slurry flooding, recovering with the greenhouse plastic mulch, and retaining the closed greenhouse under natural conditions; and removing the mulch on the ridges after the closed greenhouseis retained under natural conditions, and applying base fertilizer and turning the soil when soil water content reaches 15-25%. By the method, soil continuous cropping obstacle factors can be eliminated, part of nutrients can be supplemented, multiple effects on overcoming continuous cropping obstacles of greenhouse soil, enhancing soil fertility, relieving soil acidification, promoting operational normality of biogas engineering and the like are achieved, and the method is highly operable and convenient in popularization and application.

Description

technical field [0001] The invention relates to a method for using biogas slurry to rectify soil continuous cropping obstacles in greenhouses, and belongs to the technical fields of agricultural resource protection and agricultural waste resource recycling. Background technique [0002] Facility continuous cropping obstacle refers to the phenomenon that the growth of crops becomes weaker and the yield and quality decline under normal cultivation management measures when the same species or the same family of crops are continuously cultivated in the same facility cultivation. Barriers to continuous cropping in facilities are a common phenomenon, especially in greenhouse vegetable cultivation. The causes of facility continuous cropping obstacles are mainly caused by soil infectious pests and diseases, deterioration of soil physical and chemical properties, and autotoxicity caused by root exudates and stubble decomposition products. In most cases, it is mainly caused by soil in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
Inventor 张昌爱李国生姚利王艳芹边文范袁长波
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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