Method for testing tree-grass combination mode based on allelopathy

Abstract

The invention relates to a method for testing a tree-grass combination mode based on allelopathy. The method comprises the following steps of 1, selecting and sampling of test plants, wherein pure tree forests which are consistent in growth, resistant to pruning, high in resistance and regular in tree form are selected as contrasts, and herbaceous plant seeds of soybeans, alfalfa and marigold areselected; 2, field combination testing, wherein the soybeans, the alfalfa and the marigold are planted among rows of different pure tree forests in the last ten days of April, and the growth indexes of trees and the biomass of herbaceous plants are measured; and 3, analyzing of a testing observation value, wherein sampling is started after the herbaceous plants stop growing, the over-ground partsof the herbaceous plants are completely collected in the middle ten days of October, the growth indexes of the trees are measured, and membership function analysis on growth index differences of the trees in the pure tree forests and tree-grass forests are carried out. According to the method, the herbaceous crop seeds are planted in different forests, and the method is high in practicability, easy to operate, efficient, labor-saving, novel in idea, low in cost and suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of arrangement of trees, shrubs and grasses, and relates to the composite planting technology of trees and grasses, in particular to a method for testing the composite model of trees and grasses based on allelopathy. Background technique [0002] The development of arbor-grass combination forest plays a vital role in the construction of ecological forest. According to statistics, the forest land of a single tree species in my country's plantations currently accounts for 90%. There are problems such as the instability of the plantation forest ecosystem and the weak ecological protection effect. Secondly, when combining trees and grasses, people tend to focus on the normal operation of the machinery between trees and grasses, the coordination of color matching, the yin and yang between trees and grasses, the depth of roots, the shape of leaves and growth characteristics, etc. The influence of interspecific a...

AI Technical Summary

Problems solved by technology

According to statistics, the forest land of a single tree species in my country's plantations currently accounts for 90%.

Problems such as instability of plantation ecosystem and weak ecological protection effect appear

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