控失尿素减施及不同配比对夏玉米产量及氮肥效率的影响

张倩, 韩本高, 张博, 盛开, 李岚涛, 王宜伦

Reduced application and different combined applications of loss-control urea on summer maize yield and fertilizer efficiency improvement

ZHANG Qian, HAN Ben-Gao, ZHANG Bo, SHENG Kai, LI Lan-Tao, WANG Yi-Lun

表3 不同产量水平下各施肥处理对夏玉米产量构成因子的影响

Table 3 Effects of different fertilizer treatments on summer maize yield components under different yield levels

处理 Treatment 粒重(g 1000粒-1) Grain weight (g 1000-kernel-1) 穗粒数(粒) Grains per ear (kernels) 高产田 High-yield 中产田 Middle-yield 低产田 Low-yield 高产田 High-yield 中产田 Middle-yield 低产田 Low-yield CK 315.82±8.40 ab 297.20±1.58 ab 307.30±2.32 b 566±7 b 455±3 b 421±6 c CF 304.23±1.48 bB 306.13±6.87 aA 307.52±12.33 bA 566±2 bA 506±15 aA 460±2 aAB CL 328.77±4.59 aA 294.87±2.35 ab AB 332.54±3.24 aA 581±17 abA 489±17 abAB 444±3 abBC CL10 310.59±6.07 b 298.51±5.10 ab 308.53±8.21 b 576±11 ab 512±15 a 456±7 ab CL20 314.97±5.83 ab 288.99±4.53 b 314.99±0.83 ab 611±9 a 488±18 ab 436±14 bc CL7:3 312.84±9.87 AB 284.39±12.53 B 330.16±10.65 A 578±31 A 486±17 AB 461±13 AB CL5:5 302.94±1.95 B 293.68±2.08 AB 322.70±21.17 A 576±19 A 485±7 AB 479±6 A CL3:7 307.72±7.78 B 286.90±0.77 AB 327.22±5.06 A 582±22 A 467±6 B 417±12 C