摘要
为探索提高玉米产量的途径,采用裂区试验与正交试验设计相结合的方法研究了种植密度及氮磷钾肥用量对玉米产量的影响。结果表明:1)种植密度为3 706株/667m2时产量最高,达536kg/667m2。2)黔单100产量极显著高于金湘369和新中玉801。3)K2O施用量以10kg/667m2时产量最高,且与不施的有极显著差异;N施用量以12kg/667m2的产量最高,且与18kg/667m2有显著差异;P2O5施用量以12kg/667m2的产量最高。
The effects of planting density and application amount of nitrogen,phosphate and potassium fertilizers on maize yield were studied through the combined application of split plot experiment and orthogonal experimental design to explore a new path of enhancing maize yield.Results:1)The highest maize yield,536kg/667m2,was achieved when the planting density was 3 706plants/667m2.2)Yield of Qiandan 100was very significantly higher than Jinxiang 369and Xinzhongyu 801.3)The yield reached the highest when the application amount of K2O,N and P2O5were 10kg/667m2(very significantly different with CK),12kg/667m2(significantly different with 18kg/667m2)and 12kg/667m2,respectively.
出处
《贵州农业科学》
CAS
北大核心
2013年第10期78-80,84,共4页
Guizhou Agricultural Sciences
基金
全国粮油高产创建项目(2012贵玉米003)
关键词
玉米品种
密度
氮肥
磷肥
钾肥
产量
maize cultivar
density
nitrogen fertilizer
phosphate fertilizer
potassium fertilizer
yield
