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Method for improving salt resistance of turfs of Lolium perenne L. on garbage compost matrices by adopting lanthanum

A technology of garbage composting and ryegrass, which is applied to the field of cultivating ryegrass and improving the salt resistance of ryegrass turf as a substrate for garbage composting, and can solve the problems of rare earths that have not been reported

Inactive Publication Date: 2012-08-01
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there have been some studies on the salt resistance of turfgrass, mainly focusing on the mechanism of salt resistance, but there are no reports on the application of rare earths to the salt resistance of turfgrass

Method used

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  • Method for improving salt resistance of turfs of Lolium perenne L. on garbage compost matrices by adopting lanthanum
  • Method for improving salt resistance of turfs of Lolium perenne L. on garbage compost matrices by adopting lanthanum
  • Method for improving salt resistance of turfs of Lolium perenne L. on garbage compost matrices by adopting lanthanum

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] (1) The compost is selected from the waste compost after fermentation in the waste composting plant;

[0068] (2) Add 20g of the above-mentioned compost to the petri dish, add 0.4g of ryegrass seeds, sow in the petri dish, add 0.2g kg to the culture medium 13 days after sowing -1 Lanthanum nitrate, continue to cultivate for 14 days;

[0069] (3) Then the turfgrass stubble height is 5cm, and the turfgrass in the petri dish is transplanted together with the substrate on 280g saline-alkali soil, and the saline-alkali salt content is 0.5% and 0.8% respectively; during the cultivation, the laboratory temperature is 25°C , the relative humidity is 45%; the pH of the two saline-alkaline soils with saline content is 7.84, 7.93, the bulk density is 1.04, 1.20 (g / ml), and the conductivity is 1.49x10 3 , 1.99x10 3 (μS / cm); water holding capacity is 1.04, 1.20 (ml / g); total porosity is 64.52, 66.67 (%) 。

[0070] (4) The physiological indexes were measured after 30 days of tran...

Embodiment 2

[0072] (1) The compost is selected from the waste compost after fermentation in the waste composting plant;

[0073] (2) Add 20 g of the above-mentioned compost to a petri dish, add 0.4 g of ryegrass seeds, sow in a petri dish, and add 0.4 g kg to the culture medium 13 days after sowing -1 Lanthanum nitrate, continue to cultivate for 14 days;

[0074] (3) Then the turfgrass stubble height is 5cm, and the turfgrass in the petri dish is transplanted together with the substrate on the 280g saline-alkali soil, and the saline-alkali salt content is respectively 0.5%, 0.8%; during the cultivation, the laboratory temperature is 30°C, The relative humidity is 56%;

[0075] (4) The physiological indexes were measured after 30 days of transplantation and culture. Among them, the pH of two kinds of saline-alkali soil with salt content is 7.84, 7.93, the bulk density is 1.04, 1.20 (g / ml), and the conductivity is 1.49x10 3 , 1.99x10 3 (μS / cm); water holding capacity is 1.04, 1.20 (...

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Abstract

The invention discloses a method for improving salt resistance of turfs of Lolium perenne L. on garbage compost matrices by adopting lanthanum. The method comprises the following steps of: sowing 0.4g of Lolium perenne L. seeds in 20g of compost, adding 0.2-0.4g.kg<-1> of lanthanum nitrate to a culture medium 13 days after sowing the seeds, and continuing culturing for 14 days; then transplanting turfgrass and matrices in a culture dish onto 280g of saline-alkali soil, wherein the salt contents are respectively 0.5% and 0.8%; and beginning measuring the physiological indexes 30 days after transplanting culture. Experimental results show that harms of salt stress to Lolium perenne L. can be relieved by applying lanthanum; and through lanthanum treatment, the above-ground biomass of Lolium perenne L. can be increased, the content of malondialdehyde, a plasmalemma peroxidation product can be reduced, the relative electric conductivity of leaves can be reduced, protective enzyme activities and proline content can be improved, the osmoregulation function of Lolium perenne L. under salt stress can be enhanced, and harms of free radicals to cells can be lightened, thus harms of salt stress to Lolium perenne L. can be relieved and the stress resistance of Lolium perenne L. can be improved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a method for cultivating ryegrass by using compost of municipal domestic garbage as a substrate. More specifically, it is a method for improving the salt resistance of ryegrass turf as a waste composting substrate by using lanthanum. Background technique [0002] Municipal solid waste compost is rich in organic matter and nutrients such as nitrogen, phosphorus, and potassium, and can be used as a turf culture substrate for urban lawn establishment. The use of urban domestic waste compost for turf culture substrates solves the problem of traditional turf production that consumes fertile soil, saves agricultural land resources, alleviates the current situation of high population pressure and shortage of land resources, and broadens the application of garbage compost, reducing The cost of garbage treatment and the transportation of garbage compost to other places are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 多立安赵树兰李丹
Owner TIANJIN NORMAL UNIVERSITY