底肥分层条施对冬小麦旗叶衰老和光合特性、籽粒产量和肥料利用率的影响

闫恒辉,温樱,王东

Effects of Basal Fertilization in Strips at Different Soil Depths on Flag Leaf Senescence and Photosynthetic Characteristics, Grain Yield and Fertilizer Use Efficiency of Winter Wheat

YAN HengHui,WEN Ying,WANG Dong

表1 不同处理冬小麦产量及其构成因素

Table 1 Yield and its components of winter wheat under different treatments

年份 Year 处理 Treatments 穗数 Number of spikes (×104·hm-2) 穗粒数 Grains per spike 千粒重 1000-grain weight (g) 肥料农学效率 Agronomy efficiency of fertilizer (kg·kg-1) 籽粒产量 Grain yield (kg·hm-2) 2016—2017 T1 772.3b 26.2c 45.8a — 7843d T2 829.1a 26.1c 43.3b 0.75d 8197c T3 810.3ab 27.5b 43.6b 0.92c 8277c T4 775.2b 30.2a 45.0a 1.62b 8609b T5 816.4 ab 31.6a 44.9a 2.80a 9169a 2017—2018 T1 560.2d 28.6c 44.8b — 6171d T2 661.4a 27.1b 42.0ab 1.96d 7102c T3 631.3b 29.5b 43.1ab 2.43c 7322c T4 592.5c 33.1b 44.2ab 3.29b 7730b T5 625.1b 35.3a 45.1a 4.17a 8149a