综合农艺管理对夏玉米叶片生长发育及内源激素含量的影响
Effect of integrated agronomic managements on leaf growth and endogenous hormone content of summer maize
T1、T2、T3和T4分别代表农民习惯处理、高产高效处理、超高产处理和再高产高效处理。N0、N1、N2和N3分别表示施0、129.0、184.5和300.0 kg N hm-2。V6、V12、VT、R3和R6分别为玉米拔节期、大喇叭口期、抽雄期、乳熟期和成熟期, 大约分别为播种后21、39、50、80和110 d。*和**分别表示在0.05和0.01水平上差异显著, ns表示处理之间差异不显著。
T1, T2, T3 and T4 are local conventional cultivation, an optimized combination of cropping system and fertilizer treatment, treatment based on high-yield studies, and further optimized combination of cropping system and fertilizer treatment, respectively. N0, N1, N2, and N3 are 0, 129.0, 184.5, and 300.0 kg N hm-2, respectively. V6, V12, VT, R3, and R6 are jointing stage, loudspeaker mouth period, tasseling stage, milking stage and maturation stage of summer maize, which are about 21, 39, 50, 80, and 110 days after sowing, respectively. * and **: significantly different at P < 0.05 and P < 0.01, respectively, ns: not significant.
