Method adopting lanthanum for improving low-temperature resistance of ryegrass turf taking garbage compost as base material

Abstract

The invention relates to a method adopting lanthanum for improving the low-temperature resistance of ryegrass turf taking garbage compost as base material. The method includes the steps as follows: adding 70g of compost in Petri dishes, weighing and sowing 1.5g of ryegrass seeds in each Petri dish, and enabling periods of sprouting and growth at the initial stage to be performed at the room temperature; keeping the indoor temperature of 18 to 28 DEG C and relative humidity of 40-60% in the compartment at the periods of sprouting and growth at the initial stage, and adding nitric acid lanthanum with the concentration of 0.2-0.4g*kg<-1> in the compost culture base material after the sowing is carried out for 16 days; and cultivating for 6 days after adding the nitric acid lanthanum, moving the Petri dishes in a lighting incubator for cold stress treatment, setting the temperature at days and nights as 15-10 DEG C, the lighting time as 9h, the illumination intensity as 100 and the experimental period as 34 days, and measuring all the stress resistance indexes after the cold stress is carried out for 3-9 days. The experimental result shows that the lanthanum treatment can induce that the ryegrass taking the garbage compost as base material generates the resistance to the low-temperature stress, thereby reducing the harm of low temperature in the ryegrass.

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 lanthanum to improve the low temperature resistance of ryegrass turf as a waste composting substrate. Background technique [0002] At present, there are many problems in the production of turf in our country, which cannot meet the needs of urban turf establishment, and the lack of development and supply of turf substrate is an important limiting factor. In turf production, every time the turf production process is completed, at least 2 cm of mellow soil must be shoveled away. After 3 to 4 consecutive operations, the fertile farmland will be destroyed. To restore the fertility of the topsoil, it will take a few years at the shortest, and decades or hundreds of years at the most. For this reason, it is of great practical significan...

AI Technical Summary

Problems solved by technology

The winter in northern my country is cold, and it is difficult for turfgrass to survive the winter. In spring and autumn, it is often attacked by cold currents, causing spots, late germination in spring, early aging in autumn, and poor growth, which affects the appearance of the lawn and reduces the use value of the lawn.

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