减量施肥对滴灌冬小麦生长、产量及养分利用的影响

李怀胜, 艾海峰, 王贺亚, 张磊, 李金科, 杨杰

Effects of Fertilizer Reduction on Growth, Yield and Fertilizer Utilization of Winter Wheat under Drip Irrigation

LI Huaisheng, AI Haifeng, WANG Heya, ZHANG Lei, LI Jinke, YANG Jie

表1 化肥减施下滴灌冬小麦产量及产量构成变化

Table 1 Effects of fertilizer reduction on yield and yield components of winter wheat under drip irrigation

编号 Number	处理 Treatment	穗数 Spike number (10⁴/hm²)	千粒重 1,000-grain weight (g)	穗粒数 Grains per spike (粒)	产量 Yield (kg/hm²)	增产Ⅰ Yield increase (%)	增产Ⅱ Yield increase (%)
T₀	N₀P₀K₀	532.36^e	51.88^d	30.18^e	6 080.31^f	—	—
T₁	N₁₂₀P_52.5K_37.5	583.55^c	55.1b^c	35.28^b	8 140.72^c	33.89	15.12
T₂	N₁₂₀P₁₀₅K_37.5	597.64^b	55.96^b	36.58^a	8 998.26^b	47.99	27.25
T₃	N₂₄₀P_52.5K_37.5	626.70^a	57.74^a	37.63^a	9 673.54^a	59.10	36.80
T₄	N₂₄₀P₁₀₅K_37.5	571.52^cd	54.39^c	33.98^c	7 610.25^d	25.16	7.62
T₅	农户	558.92^d	52.74^d	32.39^d	7 071.52^e	16.30	—