摘要
通过对临朐县2007—2009年冬小麦"3414"田间肥效对比试验数据进行统计分析,得出作物相对产量与土壤有效养分存在的对数函数关系,且相关方程显著,相关系数较高,证明缩小区域建立指标体系增加了方程的可靠性和可行性;通过相关方程将土壤养分分为高、中、低3个级别,建立了该县土壤碱解氮、有效磷、速效钾的丰缺指标体系。
Analyzing the data of ＂3414＂fertilizer experiments in winter wheat from 2007 to 2009 in Linqu,the presence of logarithmic function between crop yield and soil nutrients was got.The related equation was significant and had higher correlation coefficient.It proved that narrow region to confidence index system increased the reliability and feasibility of the equation.Through the relevant equations,the soil nutrient was divided into high,medium and low level.Then the abundance and deficiency index in soil such as available N,effective P and available K was established.
出处
《现代农业科技》
2010年第12期257-258,共2页
Modern Agricultural Science and Technology
基金
农业部测土配方施肥补贴项目
关键词
冬小麦
测土配方施肥
丰缺指标
县级区域
山东临朐
winter wheat
formula fertilization by soil testing
index system of nutrient abundance
country region
Linqu Shandong
