安徽农业科学2011，Vol.39Issue(13)：7648-7649,7932,3.
沿淮地区玉米干物质和氮磷钾积累研究
Study on the Dry Matter of Z. mays L. and N, P, K Accumulation along Huaihe River
摘要
Abstract
[ Objective ] The research aimed to study the law of the dry matter of Z. mays L. and N, P and K accumulation along Huaihe Revier. [ Method] Samples of Z. mays L. were collected at 20( elongation stage), 32( large bell stage), 43( tasselling stage), 59( 15 d after tasselling), 74(30 after tasselling), 104 d (harvest stage) after seedling, then determined the dry matter and N, P and K content. [ Result]The results showed that the most accumulation of dry matter of Z. mays L. above-ground( including kernel) was 19 395.0 kg/hm2, kernel yield was 9 225.0 kg/hm2. The main accumulation stage of Z. mays L. dry matter was 21 - 74 d after seedling. The N, P and K most accumulation of Z. mays L. was 189.4, 1.6, 4.6 kg/hm2 respectively, and the number of accumulative N, P205 and K20 was 2.05, 1.53,3.52 kg respectively when producing 100 kg kernel. [ Conclusion] It is necessary to apply full base fertilizer and early apply additional N fertilizer along Huaihe Revier according to the accumulation amount and process of N, P and K. This can provide the guidance for the reasonable applying fertilizer of Z. mays L. and promoting its yield along Huaihe Revier.关键词
玉米/干物质/氮/磷/钾Key words
Z. mays L./ Dry matter /N/ P/ K分类
农业科技引用本文复制引用
王世济,阮龙,王俊,武文明,陈洪俭..沿淮地区玉米干物质和氮磷钾积累研究[J].安徽农业科学,2011,39(13):7648-7649,7932,3.基金项目
国家科技支撑计划项目(2009BADA6B04) （2009BADA6B04）
安徽省玉米振兴计划项目. （）
