Effects of lime and microbial inoculants on yield of soybean interplanting watermelon and fertility of red soil

doi:10.14088/j.cnki.issn0439-8114.2022.23.008

Abstract

Abstract: In order to improve the fertility of red soil and increase the yield of soybean and watermelon, the effects of lime combined with microbial agents on the yield of soybean intercropping watermelon and the fertility of red soil were studied. 4 treatments including CK （conventional fertilization control）, L （lime application on the basis of conventional fertilization）, M （microbial agent application on the basis of conventional fertilization）, and L+M （lime and microbial agent application on the basis of conventional fertilization） were set in the experiment. The results showed that compared with the control, the yield of fresh soybean under L, M and L+M treatments was increased by 18.40%, 22.45% and 32.96%, respectively, and the yield of watermelon was increased by 15.20%, 27.20% and 41.37%, respectively. Compared with the control, soil available N, P and K under L+M treatment increased by 43.49%, 48.21% and 23.91% respectively, and soil pH increased by 0.69 units. The comprehensive fertility quality index was significantly positively correlated with the yield of fresh soybean and watermelon （P<0.05）. On red soil upland, the combination of lime and microbial agents could significantly enhance the crop yield of soybean interplanting watermelon pattern, improve the soil available nitrogen, phosphorus and potassium nutrient supply, and increase the comprehensive fertility index.

Key words: lime, microbial agents, fresh soybean, watermelon, red soil, integrated fertility index

CLC Number:

S141.1

LIU Kai-lou, LI Hao, ZHANG Jing-yun, HU Dan-dan, SONG Hui-jie, HU Zhi-hua. Effects of lime and microbial inoculants on yield of soybean interplanting watermelon and fertility of red soil[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(23): 45-48.

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