知识与财富的链接
以玉米品种郑单958和先玉335为试验材料,对不同施氮水平下超高产玉米产量及产量构成因素的比较研究。结果表明,郑单958的百粒重高于先玉335,产量和穗粒数低于先玉335。郑单958和先玉335产量随施氮量的增加均呈单峰曲线变化,拟合系数达极显著水平(P<0.01);不同施氮水平下先玉335产量高于郑单958,差异均达显著水平(P<0.05)。
Maize cultivars ZD958 and XY335 were used as experimental materials,and comparative research on the yield and yield components of super high-yielding maize varieties under different nitrogen application rates was studied.The result showed that 100-seeds weight of ZD958 was higher than XY335,however,seeds number and yield of that were lower than XY335.According to coefficient equator,curve that yield of ZD958 and XY335 response to N fertilizer was a spike,correlation coefficients were significant at 0.01 level.Meanwhile,yield of ZY335 were higher than ZD958 under different N fertilizer levels,and differences were significant at 0.05 level.
