Chinese Journal of Applied Ecology
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XIAO Xin1, ZHU Wei1, DU Chao1, SHI Ya-dong2, WANG Jian-fei1
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Abstract: We conducted a field experiment to evaluate the effects of rotation system and bioorganic manure on soil microbial characteristics of Chrysanthemum cropping system. Taking Chrysanthemum morifolium Ramat and wheat as experimental plants, treatments under Chrysanthemum continuous cropping system (M1), conventional Chrysanthemumwheat rotation system (M2), and Chrysanthemumwheat rotation system receiving bio-organic manure application of 200 kg·667 m-2 (M3) were designed. Soil chemical properties, soil microbial biomass carbon (MBC) and nitrogen (MBN), and the amounts of different types of soil microorganisms were determined. Results showed that compared with M1, treatments of M2 and M3 significantly increased soil pH, organic matter, available N, P, and K, MBC, MBN, and the amounts of bacteria, fungi and actinomycetes, but decreased the ratio of MBC/MBN, and the relative percentage of fungi in the total amount of microorganisms. Treatment of M3 had the highest contents of soil organic matter, available N, available P, available K, MBC, MBN, and the amounts of bacteria, fungi and actinomycetes, with the values being 15.62 g·kg-1, 64.75 mg·kg-1, 83.26 mg·kg-1, 96.72 mg·kg-1, 217.40 mg·kg-1, 38.41 mg·kg-1, 22.31×106 cfu·g-1, 56.36×103 cfu·g-1, 15.90×105 cfu·g-1, respectively. We concluded that rational crop rotation and bioorganic manure application could weaken soil acidification, improve soil fertility and microbial community structure, increase the efficiency of nutrition supply, and have a positive effect on reducing the obstacles of continuous cropping.
XIAO Xin1, ZHU Wei1, DU Chao1, SHI Ya-dong2, WANG Jian-fei1. Effects of crop rotation and bioorganic manure on soil microbial characteristics of Chrysanthemum cropping system.[J]. Chinese Journal of Applied Ecology.
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URL: https://www.cjae.net/EN/abstract/abstract11868.shtml
https://www.cjae.net/EN/Y2015/V26/I6/1779