摘要
盆栽条件下,研究了黄淮麦区当年广泛种植的28个小麦品种在2个供K水平下N、P吸收利用差异。研究结果表明,高K与低K条件下,不同小麦品种N、P吸收利用能力差异都很大,小麦品种间N、P积累量与干物质积累量呈极显著正相关;相关分析表明,无论是低K还是高K下,不同小麦品种K积累量、K利用效率与N积累量、N利用效率及P积累量、P利用效率都存在极显著的正相关,这就显示出K高效小麦品种同时也是N高效、P高效小麦品种。
We studied nitrogen and phosphate absorption and utilization under two potassium levels by pot culture. Results showed that there were great differences in nitrogen and, phosphate use ability among wheat varieties.The N and P accumulation amounts were positively correlated with dry matter accumulation,and the correlation analysis also showed that high potassium wheat varieties are also high nitrogen and high phosphate wheat varieties.
出处
《土壤通报》
CAS
CSCD
北大核心
2004年第2期191-194,共4页
Chinese Journal of Soil Science
基金
九五"国家科技攻关项目(95-001-01-03)
关键词
钾
小麦品种
氮素
磷素
吸收利用
利用效率
积累量
Wheat variety
Potassium
N accumulation
P accumulation
N use efficiency
P use efficiency
