长期间作牧草对椰园土壤肥力的影响  

Effects of Long-term Intercropping Pastures on Coconut Soil Fertility

作　　者：王萍[1] 刘立云[1] 杨伟波[1] 陈思婷[1] 唐龙祥[1] 王东劲[2] 周汉林[2] 郇树乾[2] 

机构地区：[1]中国热带农业科学院椰子研究所,海南文昌571339 [2]中国热带农业科学院热带作物品种资源研究所,海南儋州571737

出　　处：《西南农业学报》2011年第3期990-994,共5页Southwest China Journal of Agricultural Sciences

基　　金：品资所中央级公益性科研院所基本科研业务费项目(PZS034);公益性行业项目(200903026)

摘　　要：幼龄椰园长期间作牧草,10年后0~20 cm层下降0.92个pH单位,20~40 cm层下降0.75个单位,而成龄椰园0~20 cm层下降0.82个单位,20~40 cm层下降1.04个单位;幼龄椰园间作牧草,10年后土壤含水量有所下降,但仍比间作前高,而成龄椰园土壤含水量下降了一半以上,而且比幼龄椰园低;幼龄椰园间作牧草,10年后0~20 cm土层有机质含量比间作前有所上升,但20~40 cm以下则低于间作前,成龄椰园均比间作前明显降低;幼龄椰园间作牧草,10年后土壤全氮含量略微降低,而成龄椰园下降了一半以上,但目前成龄椰园的土壤全氮含量比幼龄椰园的略高。建议椰园实行长期牧草间作,每年必须追施足够的肥料,并采取施入石灰或进行禾本科牧草与豆科或其它非禾本科作物轮作。After long-term intercropping pastures in young coconut grove for 10 years,the soil pH of 0-20 cm decreased 0.92 unit,the 20-40 cm decreased 0.75 unit,and in old coconut grove the soil pH of 0-20 cm decreased 0.82 unit,the 20-40 cm decreased 1.04 unit;after long-term intercropping pastures in young coconut grove for 10 years,the soil water content was lower than before,but higher than before,in old coconut grove the soil water content decreased above half than before and was lower compared with the young coconut grove;after long-term intercropping pastures in young coconut grove for 10 years,the soil organic matter of 0-20 cm was higher than before,but the 20-40 cm was lower,and in old coconut grove there were all lower;after long-term intercropping pastures in young coconut grove for 10 years,the soil total nitrogen content was a little lower than before,but in old coconut grove it decreased above half than before,but was higher compared with the young coconut grove.These results suggesed that long-term intercropping pastures in coconut grove,there must be applying fertilizer properly,and combining with proper lime or adopting legume-graminaceae rotation or legume-non graminaceae rotation.

关 键 词：椰园 长期间作牧草 土壤肥力 

分 类 号：S667.5[农业科学—果树学]