摘要
根据大理州多年多点马铃薯"3414"田间试验结果,系统地分析对产量与土壤养分测试值之间的关系,建立马铃薯作物土壤养分丰缺指标体系。在建立马铃薯土壤养分丰缺指标的基础上,选用适合的回归分析方法,拟合肥料效应回归模型,采用每个试验最佳产量与相应土壤速效养分含量建立效应方程,通过效应方程计算土壤养分分级指标下的肥料施用量,确定不同丰缺等级下的平均推荐施肥量上、下限,建立马铃薯施肥指标体系。
Based on the results of ＂3414＂ field experiment of potato in Dali Prefecture,the relationship between yield and soil nutrient test was systematically analyzed,and a soil nutrient abundance index system was established.On the basis of establishing the index of soil nutrient abundance and deficiency of potato,the suitable regression analysis method was chosen,the model of fertilizer effect was fitted,the effect equation was established by using the optimum yield of each experiment and the corresponding content of soil available nutrients.Through the effect equation,the amount of fertilizer applied under the index of soil nutrient classification was calculated,the upper and lower limits of the average recommended fertilizer amount under different grades were determined,and the fertilization index system of potato was established.
作者
张新华
李丽槐
赵彪
杨锡银
杨雄
ZHANG Xin-hua, LI Li-huai, ZHAO Biao ,YANG Xi-yin, YANG Xiong(Yunnan Dali Agricultural Science Extension Research Institute, Dali Yunnan 67100)
出处
《现代农业科技》
2018年第12期78-79,84,共3页
Modern Agricultural Science and Technology
关键词
马铃薯
土壤养分
指标体系
推荐施肥
云南大理
potato
soil nutrient
index system
recommended fertilization
Dali Yunnan
