Effects of grass planting in pear orchard on soil nutrients and microbial diversity

doi:10.14088/j.cnki.issn0439-8114.2024.11.019

Abstract

Abstract: Using naturally grown grasses as a control, three kinds of artificially planted grasses were set up to observe the growth and cover characteristics of the three kinds of grass, and the changes of artificially planted grasses on soil nutrients and microbial diversity in pear orchards were analyzed. The results showed that Vicia villosa demonstrated superior soil coverage effects in pear orchards compared to Trifolium repens and Astragalus sinicus. Both artificially planted and naturally grown grasses could effectively enhance soil fertility, but naturally grown grasses showed better accumulation of soil available nutrients than artificially planted ones; Trifolium repens coverage significantly improved soil organic matter, available potassium and total nitrogen levels compared to natural grasses, Astragalus sinicus and Vicia villosa. Vicia villosa coverage was superior in enhancing soil nitrate nitrogen levels compared to natural grasses, Trifolium repens and Astragalus sinicus. During the grass coverage period, both natural and artificial grassing effectively increased soil microbial diversity. In the later growth stage of Astragalus sinicus, soil microbial diversity was less than that of natural grasses, Trifolium repens and Vicia villosa.

Key words: pear orchard, grass planting, soil nutrient, microbial diversity

CLC Number:

ZHANG Gui-you, HONG Juan, HUANG Xiang, DU Lei, WANG Su-ping, JIANG Li, YAO Yan-xing. Effects of grass planting in pear orchard on soil nutrients and microbial diversity[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(11): 108-113.

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