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Application of compost leacheate in improving water use efficiency of lawn plants

An eluent, plant technology, applied in the directions of botanical equipment and methods, applications, fertilizer mixtures, etc., can solve problems such as exposure of toxic substances to heavy metals, changes in solubility and mobility, environmental pollution, etc.

Inactive Publication Date: 2011-02-02
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because after rinsing treatment, the force between the aggregates in the compost matrix system will be changed, and the solubility and mobility of the substances in it will be changed, which may lead to the exposure of some toxic substances and the dissolution of activated heavy metals, and will also cause pollution risks to the environment. Therefore, how to rationally use the eluent, especially the eluate treated with EDTA in terms of the water use efficiency in the cultivation of lawn plants, has not been reported in the literature.

Method used

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  • Application of compost leacheate in improving water use efficiency of lawn plants
  • Application of compost leacheate in improving water use efficiency of lawn plants
  • Application of compost leacheate in improving water use efficiency of lawn plants

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) Sowing ryegrass or tall fescue with 40g / square meter on the plastic net, watering Hoagland nutrient solution;

[0021] (2) After the seeds are cultivated for 30 days, the nutrient solution is all poured out, and the nutrient solution is replaced with the garbage compost washing solution applying 5mmol / EDTA, and the lawn plants are continued to be germinated in soilless culture; wherein the compost washing solution: 5mmol / LEDTA The ratio of parts by weight is 1:0.01.

[0022] (3) In the morning and evening, replenish the waste composting eluent lost by evaporation, and replace the waste composting eluent once a week;

Embodiment 2

[0025] (1) Test material

[0026] Perennial ryegrass (Lolium perenne L.) and tall fescue (Festuca arundinacea L.), which are common in northern my country, were used as test materials in this experiment. Domestic waste compost comes from Tianjin Xiaodian Compost Plant, and its basic physical and chemical properties are shown in Table 3.1 in Chapter Three. Hoagland's nutrient solution composition: mother solution 1: Ca(NO 3 ) 2 4H 2 O 118g / L; mother liquor 2: KNO 3 50.5g / L; KH 2 PO 4 13.6g / L; mother liquor 3: MgSO 4 ·7H 2 O 24.6g / L; mother liquor 4: H 3 BO 3 3.09g / L; MnCl 2 4H 2 O 0.9g / L; ZnSO 4 ·7H 2 O 1.1g / L; CuSO 4 ·5H 2 O 7.5mg / L; (NH 4 ) 2 MoO 4 124mg / L; mother solution 5: EDTA-Na 2 3.72g / L; FeCl 3 ·6H 2 O 2.70g / L. After the mother liquor is prepared, pour it into a bottle with its own label and store it in the refrigerator for later use. The nutrient solution is ready-to-use and ready-to-use. When preparing, take 10mL of mother liquor 1, 2, and 3...

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Abstract

The invention discloses application of compost leacheate in improving water use efficiency of lawn plants; wherein, the compost leacheate is formed by waste composts which are added with 5-15mmol / L EDTA after being eluted with water based on the weight ratio of 1:1-3; wherein, the weight ratio of the compost leacheate to 5-15mmol / L EDTA is 1:0.01-0.03. In the invention, lawn plant culture by adding EDTA to the leacheate which is formed by eluting waste composts based on different mass ratios of water to the composts and ecological responses of water use characteristics of the lawn plants are discussed so as to further provide data support for water use link in the technology of applying the lawn plants in culturing soilless sods with the waste compost leacheate and for phytoremediation ofthe compost leacheate.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to the utilization of domestic garbage composting eluent and a method for repairing and treating the eluent, more specifically the application of the domestic garbage composting eluent in improving the water use efficiency of lawn plants. Background technique [0002] With the increase of the number of cities in our country, the acceleration of urbanization process, the expansion of scale, the increase of recognition, the improvement of people's living standards and the change of lifestyle, the output of urban domestic waste has increased rapidly at an average annual growth rate of 8% to 10%. At the same time, the composition and characteristics of ingredients have also undergone obvious changes. Composting domestic waste can not only solve the problem of urban waste, but also achieve the purpose of recycling, which has certain economic and social benefits. At present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00C05G3/00C05F9/00
CPCY02A40/20Y02P60/21
Inventor 赵树兰多立安刘青
Owner TIANJIN NORMAL UNIVERSITY