种植紫花苜蓿对土壤养份的影响  

The influence of planting the purple flower alfalfa on the nutriention content of the soil

作　　者：郭玉泉 王金芬[2] 高翔[2] 

机构地区：[1]山东省滨州地区畜牧局，山东 滨州 256600 [2]山东省滨州农业学校，山东 滨州 256600

出　　处：《四川草原》2000年第4期20-24,共5页Journal of Sichuan Grassland

摘　　要：通过对 3年的干草产量和种植前后土壤 5种主要养份含量的测定结果表明有机质、有效磷、速效钾和全氮 4种养分种植苜蓿后含量降低 ,只有水解氮含量增加。通过相关和回归分析 ,5种土壤养份含量的变化与干草产量之间存在明显的直接回归关系 ,其回归效果都达到显著 (P <0 0 5)或极显著 (P <0 0 1 )水平。此结果在紫花苜蓿种植生产实践中 。Dry yields of alfalfas and five main soil nutrient contents before and after alfalfa growing were measured from 1994-1997.The results showed that there were fewer organic mater,effective phosphorus,quick effective potassium and total nitrogen in the soil after growing alfalfa than that in the soil of no alfalfa growing.Nitrogen hydrolysate raised in the soil of alfalfa growing.By the analyses of interrelation and regression,there were obvious limear relation ships between soil nutrient and dry yield of alfalfa.

关 键 词：紫花苜蓿 干草产量 土壤养份 

分 类 号：S541.9[农业科学—作物学] S158.3