华南农业大学学报Issue(4)：480-483,4.
M-DRIS 在马铃薯幼苗 N、P、K 养分平衡诊断中的应用
M-DRIS Application in Diagnosis of N,P,K Nutrient Balance of Potato Seedlings
摘要
Abstract
Through the sand culture pot experiment ,using complete solution as the control , modified diag-nosis and recommendation integrated system ( M-DRIS) was used to diagnose the N ,P,K sufficiency in different parts of N deficiency potato .The results showed that nitrogen deficiency would inhibit the growth of potato .The nutrient content of N was lower than CK ( complete solution ) while the nutrient content of P,K were higher .Nutrient imbalance index ( NII):aerial stem>leaf>the petiole>leaf blades>tuber>underground portion .The nutrient content of aerial stem was the most imbalanced part , while under-ground portion nutrient content was in a proper range .The order of nutrient requirements by potato seed-lings was N>K>P under the condition of N deficiency .关键词
M-DRIS/马铃薯幼苗/养分平衡/缺N处理Key words
M-DRIS/potato seedling/nutrient balance/nitrogen deficiency分类
农业科技引用本文复制引用
官利兰,吕东平,罗宏愿,袁嘉铭,张新明..M-DRIS 在马铃薯幼苗 N、P、K 养分平衡诊断中的应用[J].华南农业大学学报,2013,(4):480-483,4.基金项目
广东省科技计划项目（2010B020315022）；国家科技支撑计划（2007BAD89B14）；广东省教育部产学研结合项目 （）
