绿洲灌区免耕一膜两年用玉米密植的水分承载潜力

张展军,杨宏伟,樊志龙,于爱忠,胡发龙,殷文,范虹,郭瑶,柴强,赵财

Water-Carrying Potential of No-Tillage with Plastic Film Mulching for 2-Year Coupled with Maize High-Density Planting in Oasis Irrigation Area

ZHANG ZhanJun,YANG HongWei,FAN ZhiLong,YU AiZhong,HU FaLong,YIN Wen,FAN Hong,GUO Yao,CHAI Qiang,ZHAO Cai

表1 不同耕作措施及种植密度下玉米的耗水特性

Table 1 Water consumption characteristics of maize under different tillage measures and planting densities

年份 Year 处理 Treatment 播前含水量 Soil water content before sowing (%) 收后含水量 Soil water content in harvesting (%) 播前贮水量 Soil water storage before sowing (mm) 收后贮水量 Soil water storage in harvesting (mm) 全生育期耗水量 ET (mm) 2018 CTM1 17.97b 17.77bc 305.88b 314.33b 648.11c CTM2 18.93b 16.54d 310.55b 288.31cd 672.81b CTM3 18.98b 16.20d 302.23b 279.89d 693.90b NTM1 20.87a 20.40a 356.45a 354.38a 651.98c NTM2 21.20a 18.58b 373.33a 318.29b 691.61b NTM3 20.27a 17.22cd 366.85a 301.11bc 722.30a 2019 CTM1 18.81b 16.66a 299.99b 293.62ab 613.47d CTM2 18.34b 17.59a 313.10b 308.91a 640.49bc CTM3 18.91b 16.70a 317.71b 286.38b 661.07b NTM1 20.84a 17.37a 375.23a 312.30a 629.55cd NTM2 21.28a 16.89a 391.18a 305.13a 656.68b NTM3 22.04a 17.45a 408.54a 311.79a 696.05a 显著性（P值） Significance(P value) 耕作措施 Tillage ** ** ** ** NS 种植密度 Density NS NS ** ** ** 耕作措施×种植密度 Tillage ×Density NS NS NS NS NS