水分亏缺下化肥减量配施有机肥对棉花光合特性与产量的影响

冯克云, 王宁, 南宏宇, 高建刚

Effects of chemical fertilizer reduction with organic fertilizer application under water deficit on photosynthetic characteristics and yield of cotton

FENG Ke-Yun, WANG Ning, NAN Hong-Yu, GAO Jian-Gang

表2 不同灌溉量和施肥处理对棉花产量及构成因素的影响

Table 2 Effects of different irrigation and fertilizer treatments on cotton yield and its components

灌溉 Irrigation 施肥 Fertilizer 单株铃数 Number of bolls 单铃重 Boll mass (g) 衣分 Lint percentage (%) 籽棉产量 Lint yield (kg hm-2) 2017 2018 2017 2018 2017 2018 2017 2018 W1 CK 3.9 d 4.5 e 5.6 b 5.9 b 41.2 a 41.4 a 2758.4 d 2939.7 d CF 5.4 c 5.6 d 6.2 a 6.3 a 41.6 a 41.6 a 4285.3 c 4357.2 c M1 6.2 a 6.7 a 6.3 a 6.5 a 41.5 a 41.9 a 4581.6 a 4662.5 a M2 6.1 a 6.2 b 6.2 a 6.3 a 41.4 a 41.7 a 4417.3 b 4485.6 b M3 5.7 b 5.9 c 6.2 a 6.2 a 41.5 a 41.5 a 4368.7 b 4405.7 b W2 CK 3.5 e 3.7 d 5.5 b 5.6 b 42.7 a 42.6 a 2404.6 e 2513.5 e CF 4.8 d 5.1 c 5.9 a 6.0 a 42.6 a 42.8 a 3625.3 d 3718.7 d M1 5.5 b 5.7 b 6.1 a 6.1 a 42.5 a 42.5 a 4224.6 b 4273.8 b M2 5.8 a 6.3 a 6.2 a 6.3 a 42.3 a 42.6 a 4396.8 a 4415.1 a M3 5.3 c 5.6 b 6.1 a 6.0 a 42.5 a 42.4 a 4128.3 c 4187.4 c 灌水Irrigation (W) ** ** ns ns ** ** ** ** 施肥Fertilizer (F) ** ** ** ** ns ns ** ** 灌水×施肥W×F ** ** ns * ns ns ** **