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

于宁宁,张吉旺,任佰朝,赵斌,刘鹏

Effect of integrated agronomic managements on leaf growth and endogenous hormone content of summer maize

Ning-Ning YU,Ji-Wang ZHANG,Bai-Zhao REN,Bin ZHAO,Peng LIU

表1 不同处理的栽培管理措施和肥料运筹

Table 1 Cultivation managements and fertilizer strategies for different treatments

处理 Treatment	耕作方式 Tillage method	种植密度 Seeding rate (×10⁴ seeds hm^-2)	播种日期 Seeding date (m/d)	收获日期 Harvest date (m/d)	施肥时期及用量 Periods and rates of fertilizer application (kg hm^-2)
处理 Treatment	耕作方式 Tillage method	种植密度 Seeding rate (×10⁴ seeds hm^-2)	播种日期 Seeding date (m/d)	收获日期 Harvest date (m/d)	肥料 Fertilizer	播前 Pre seeding	拔节 Jointing	抽雄 VT	抽雄后7 d VT+7
T1	秸秆覆盖免耕 Straw-covering No tilling	6	6/15	9/20	N		225
					P		45
					K		75
T2	秸秆还田播前旋耕 Straw-covering Rotary tilling	6.75	6/15	10/1	N	45	115.5
					P	45
					K	45	30
T3	秸秆还田播前旋耕 Straw-covering Rotary tilling	8.7	6/15	10/6	N		135	225	90
					P	60	90
					K	150	150
T4	秸秆还田播前旋耕 Straw-covering Rotary tilling	7.5	6/15	10/6	N	30	90	64.5
					P	30	25.5
					K	30	70.5	30