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1 不同处理对土壤养分含量和pH的影响

Table 1 Effects of different treatments on soil nutrient contents and pH

处理 Treatment 有机质 Organic matter (g/kg) 全氮 Total nitrogen (g/kg) 有效磷 Available phosphorus (g/kg) 速效钾 Available potassium (mg/kg) pH T1 19.32±0.68bc 1.10±0.05b 43.35±2.12c 234.64±15.25a 7.52±0.26a T2 19.36±1.12bc 1.11±1.11b 44.30±0.69bc 217.90±14.16ab 7.67±0.31a T3 21.16±0.95ab 1.13±1.13b 45.85±1.33bc 202.55±13.37bc 7.51±0.23a T4 21.80±1.09a 1.17±0.08ab 48.06±1.63a 201.90±8.98bc 7.42±0.15a T5 20.79±1.25abc 1.31±1.31a 47.40±1.13a 229.57±10.82a 7.19±0.29ab T6 18.86±0.87c 1.24±1.24ab 46.07±2.40abc 189.58±12.15c 6.95±0.32b