榆林市榆阳区春玉米潮土土壤养分含量变化分析  

Analysis on Nutrient Contents Change in Fluvo-aquic Soil of Spring Corn in Yuyang District of Yulin City

作　　者：吴瑞青[1] 屈江丽[1] 边永胜 黄小晶[1] 袁浩[1] 

机构地区：[1]陕西省榆林市榆阳区农业技术推广中心,陕西榆林719000

出　　处：《现代农业科技》2012年第19期221-222,共2页Modern Agricultural Science and Technology

摘　　要：为了解榆林市榆阳区春玉米潮土土壤养分情况,对农户施肥水平进行调查,取土样分析,并与第二次土壤普查结果进行比较,分析变化规律。结果表明,土壤养分呈现总体含量增加的趋势,但速效钾含量下降,进一步提出施肥指导原则。In order to find out the situation of fluvo-aquic soil nutrients of spring corn in Yuyang District of Yu]in City,the farmers＇ferti]ization levels were investigated ,the soil samples were determined,and compared to results of the second national land survey to analyze the change regular. The results showed that the contents of soil nutrients presented an increasing trend,but available potassium decreased,and further fertilization principles were proposed.

关 键 词：春玉米 潮土 土壤养分 含量变化 陕西榆林 榆阳区 

分 类 号：S158.2[农业科学—土壤学]