Welcome to CHINESE JOURNAL OF OIL CROP SCIENCES,

中国油料作物学报 ›› 2019, Vol. 41 ›› Issue (4): 638-.doi: 10.7505/j.issn.1007-9084.2019.04.019

Previous Articles     Next Articles

Effects of flowering rapeseed-manure returns on soil microorganism and growth of peanut

  

  1. Oil Crops Research Institute of Chinese Academy of Agricultural Sciences /Key Laboratory of Biology and Genetics
    Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China
  • Online:2019-08-28 Published:2019-10-18

Abstract: In order to understand the effects of Brassica green plants returning on soil microorganism and suc? ceeding crops (peanut), two Brassica species as rapeseed (B. napus) and mustard (B. juncea) with different glucosino? lates contents were used as green manure under pot experiments to simulate straw returning. It was shown that mus? tard had more glucosinolates, and both species had higher glucosinolates contents at flowering periods. After return? ing, glucosinolates degradation product of isothiocyanates (ITCs) reached the highest at 20 d. In Brassica green ma? nure, mustard showed both strong inhibition of bacteria and fungi, while rapeseed only had inhibition ability to bac? teria. Green manure mustard could significantly promote peanut growth as succeeding crop, with 11.4% higher effec? tive nodules and 7.1% greater plant dry weight.

Key words: Brassica napus, B. juncea, peanut, soil, green manure, microorganism, isothiocyanates