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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。
Under potted condition, the differences of N, P uptake and utilization of 28 wheat cultivars widely planted in the Huanghuai area at two K levels were studied. The results showed that under the conditions of high K and low K, the N, P absorption and utilization abilities of different wheat cultivars were very different. There was a significant positive correlation between N and P accumulation and dry matter accumulation of wheat cultivars. Correlation analysis showed that, Whether low K or high K, K accumulation of different wheat varieties K utilization efficiency and N accumulation, N utilization efficiency and P accumulation, P utilization efficiency there is a significant positive correlation, which shows that K efficient wheat varieties It is also a highly efficient, P-efficient wheat variety.