摘要
"多花黑麦草(Lolium multiflorum L.; Italian Ryegrass)—水稻(Oryza sativa L.; Rice)"草田轮作(IRR)系统是我国南方农区新型的轮作模式之一。利用冬闲田种植多花黑麦草不仅能够生产大量的优质青饲料,缓解冬季畜禽饲草紧缺的问题,而且可以改善土壤物理和化学性质,提高养分循环效率,并对土壤微生物群落产生积极影响。通过讨论种植多花黑麦草对土壤团聚体结构、容重、pH、腐殖酸、有机质、碳氮比、土壤氮、磷、钾含量和土壤微生物群落等的影响,系统总结了黑麦草在土壤培肥方面的作用效应,并进一步探讨了南方农区利用IRR系统发展"草牧业"的困难与挑战,旨在为IRR系统的进一步推广提供更为全面深入的理论指导。
"Italian ryegrass(Lolium multiflorum L.)-Rice(Oryza sativa L.)"Rotation(IRR)system is a new type of rotation pattern in the southern agricultural paddy areas.Planting Italian ryegrass in winter fields can not only produce a large amount of high-quality green feed,relieve the shortage of winter livestock and poultry forage,but also improve soil physio-chemical properties,improve nutrient recycling efficiency,and have positive effects on soil microbial communities.Here the effects of Italian ryegrass on soil fertilization were systematically explored,by analyzing the effects of planting Italian ryegrass on soil aggregate structure,bulk density,pH,humic acid,organic matter,C/N ratio,soil nitrogen,phosphorus,potassium contents and soil microbial community,etc.The difficulties and challenges of developing"Grass husbandry"through IRR system in southern agricultural areas were discussed.This study may provide some theoretical guidance for further promotion of IRR system application.
作者
何宏斌
张钰薇
程俊康
贾戌禹
辛国荣
陈卫国
HE Hongbin;ZHANG Yuwei;CHENG Junkang;JIA Xuyu;XIN Guorong;CHEN Weiguo(State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources,School of Life Sciences,Sun Yat–sen University,Guangzhou 510275,China;Dongli Planting and Farming industrial Co.,LTD,Lianzhou,Guangdong 513400,China)
出处
《生态科学》
CSCD
2019年第2期155-161,共7页
Ecological Science
基金
公益性行业(农业)科研专项经费项目(20150122-15)
"‘扬帆计划’引进创新创业团队专项资助(2015YT02H032)"
