秸秆还田下减氮对土壤养分、酶活性和冬小麦产量的影响

刘红杰, 任德超, 倪永静, 葛君, 张素瑜, 吕国华, 胡新

Effects of Straw Returning and Reducing Nitrogen Application on Soil Nutrients, Enzyme Activities and Wheat Yield

Liu Hongjie, Ren Dechao, Ni Yongjing, Ge Jun, Zhang Suyu, Lü Guohua, Hu Xin

表3 不同处理对小麦产量及其构成要素的影响

Table 3 Effects of different treatments on wheat yield and its components

处理 Treatment 穗粒数 Grain number per spike 穗数 Spike number (×104/hm2) 千粒重 1000-grain weight (g) 产量 Yield (kg/hm2) T1 33.80±1.89a 508.00±23.37d 45.37±1.09a 6974.64±313.86c T2 28.37±1.96c 659.20±16.22ab 45.14±1.81a 7535.97±218.54bc T3 30.37±1.06bc 706.90±46.66a 43.48±2.34a 8032.50±409.66ab T4 31.87±1.10ab 602.85±8.65bc 45.92±1.57a 8197.74±323.81a T5 32.70±1.64ab 599.06±23.66bc 44.38±1.07a 7753.55±269.62ab T6 32.86±2.14ab 567.94±35.25c 45.73±1.55a 7413.59±380.32bc