水氮耦合对地膜玉米免耕轮作小麦干物质积累及产量的影响

赵财,王巧梅,郭瑶,殷文,樊志龙,胡发龙,于爱忠,柴强

Effects of Water-Nitrogen Coupling Patterns on Dry Matter Accumulation and Yield of Wheat under No-tillage with Previous Plastic Mulched Maize

Cai ZHAO,Qiao-Mei WANG,Yao GUO,Wen YIN,Zhi-Long FAN,Fa-Long HU,Ai-Zhong YU,Qiang CHAI

表1 不同耕作措施及水氮耦合模式下不同生育阶段小麦群体生长速率

Table 1 Wheat growth rate of in various growing stages under different tillage practices and water-nitrogen coupling patterns (kg hm-2 d-1)

耕作措施 Tillage practice 灌水水平 Irrigation level 施氮水平 Fertilizer level 苗期-拔节期 Seedling to jointing 拔节-孕穗期 Jointing to booting 孕穗-灌浆初期 Booting to early-filling 灌浆初期-中期 Early-filling to mid-filling 灌浆中期-收获期 Mid-filling to harvesting 2016 NT I2 N3 151 b 380 a 269 g 393 a 170 d N2 140 cd 349 b 287 f 387 a 105 f N1 135 d 264 e 368 cd 241 c 196 c I1 N3 193 a 302 cd 406 b 213 e 230 b N2 156 b 279 de 352 d 302 b 253 a N1 144 c 226 g 409 b 298 b 87 g CT I2 N3 148 bc 314 c 353 d 230 cd 143 e N2 130 d 296 d 319 e 223 d 232 b N1 136 d 280 de 314 e 183 f 139 e I1 N3 109 e 270 e 425 a 200 e 81 h N2 110 e 271 e 358 d 217 de 103 f N1 102 f 244 f 383 c 208 e 78 h 2017 NT I2 N3 112 a 297 bc 353 de 335 b 194 c N2 97 b 337 a 346 e 384 a 184 d N1 81 ef 299 bc 357 de 306 c 167 e I1 N3 84 cde 327 a 378 d 347 b 206 b N2 87 cd 281 de 426 c 305 c 219 a N1 91 c 224 f 475 a 316 c 195 c CT I2 N3 99 b 304 b 342 ef 244 f 209 b N2 85 cd 298 bc 337 ef 308 c 222 a N1 86 cd 295 c 331 f 276 d 160 f I1 N3 74 f 309 b 449 b 273 de 183 d N2 88 cd 277 e 463 ab 313 c 198 bc N1 54 g 291 cd 446 b 254 ef 130 g 显著性值 (P) 耕作措施 Tillage practice (T) 0.002 NS NS 0.000 0.000 灌水水平 Irrigation level (I) NS 0.007 0.000 0.040 0.032 施氮量 Nitrogen level (N) 0.000 0.000 0.000 0.000 0.000 耕作措施×灌水水平 T×I NS NS NS NS NS 耕作措施×施氮量 T×N 0.001 0.009 0.024 0.002 0.000 灌水水平×施氮量 I×N NS 0.004 0.000 0.000 0.015 耕作措施×灌水水平×施氮量 T×I×N NS 0.016 0.010 0.038 NS