Effects of different green manure incorporation on soil nutrients, enzyme activities, and microbial biomass in a protected vineyard

doi:10.14088/j.cnki.issn0439-8114.2026.04.010

Abstract

Abstract: To clarify the effect of green manure incorporation on soil improvement in a protected vineyard, four leguminous green manures, namely common vetch (JKWD), Chinese milk vetch (ZYY), crimson clover (JSY), and smooth vetch (GYSZ), were used as research objects, and the changes in soil nutrients, enzyme activities, and microbial biomass carbon and nitrogen contents after their incorporation were analyzed. The results showed that green manure incorporation significantly improved soil fertility, with soil organic matter contents significantly increased compared with the control treatment, and simultaneously effectively enhanced the availability of soil nitrogen, phosphorus, and potassium nutrients. In terms of enzyme activities, JSY performed the best, with the highest activities of urease, catalase, acid phosphatase, β-glucosidase, and β-cellobiosidase. Green manures provided sufficient carbon and nitrogen sources for microorganisms through nitrogen increase by nitrogen-fixing rhizobia and carbon supplement by organic matter decomposition. Green manure incorporation could effectively improve the soil quality and ecological functions of the protected vineyard, providing a good soil foundation for grape growth.

Key words: green manure incorporation, protected vineyard, soil nutrient, enzyme activity, microbial biomass

CLC Number:

S156

FAN Xiao-hui, CHEN Mu-song, LIU Wen-ting, XIE Xing, LIN Xu, WANG Lie-ping, HE Chun-mei. Effects of different green manure incorporation on soil nutrients, enzyme activities, and microbial biomass in a protected vineyard[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(4): 55-60.

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