农业环境科学学报2012，Vol.31Issue(10)：1941-1947,7.
芝麻、花生和田菁秸秆还田的化感效应研究
Allelopathic Effect of Returning Plant Residue to Field from Sesame, Peanut and Sesbania
摘要
Abstract
A pot experiment in greenhouse was conducted to study the effects of returning plant residue from sesame(Sesamum indicum), peanut(Arachis hypogaea) and sesbania(Sesbania cannabina) on subsequent seedlings growth and soil nutrient. After soil was amended with different crop straws, the biomass of radish(R.sativus ) ,ryegrass(L.multiforum) and cucumber(C.sativus ) increased significantly,and soil nutrients also increased significantly. The results showed that the order of the biomass of subsequent seedlings was peanut > sesbania > sesame > CK. The improvement of soil available P and K was better by returning the plant residue of sesame than the other two crops. The improvement of soil total nitrogen was better by returning the plant residue from peanut and sesbania than by sesame. Comparing with negative effect of allelopathic effect caused by the phylo-toxic substances produced in the initial phase of the decomposition processes. The positive impact caused by the accumulation of nutrient overcame the negative impact caused by allelopathic chemicals. Higher soil pH caused by returning crop residue may also play an important role.关键词
作物生物量/秸秆还田/土壤养分/化感作用Key words
crop biomass/ straw returning/ soil fertility/ allelopathy分类
资源环境引用本文复制引用
秦俊豪,贺鸿志,黎华寿,顾忱,彭阳洋,韩萌..芝麻、花生和田菁秸秆还田的化感效应研究[J].农业环境科学学报,2012,31(10):1941-1947,7.基金项目
国家重点基础研究"973"项目(2011CB100406) （2011CB100406）
