安徽省主要作物秸秆养分资源量及还田利用潜力

柴如山,徐悦,程启鹏,王擎运,马超,叶新新,章力干,郜红建

Nutrient Resource Quantity of Main Crop Straw and Utilization Potential Under Straw Returning in Anhui Province

CHAI RuShan,XU Yue,CHENG QiPeng,WANG QingYun,MA Chao,YE XinXin,ZHANG LiGan,GAO HongJian

表4 2016—2018年安徽省不同区域单位播种面积主要作物秸秆还田的化肥可替代量

Table 4 Synthetic fertilizers substitute potential through main crop straw incorporation in different regions of Anhui province during the period of 2016-2018

区域 Region 种植制度 Cropping system 作物季型 Crop season 上季作物秸秆还田化肥可替代量 Synthetic fertilizers substitute potential (kg·hm-2) N P2O5 K2O 淮北North area of Huai River 小麦-玉米 Wheat-maize 小麦季Wheat 30.3±3.3 15.3±1.6 73.1±7.9 玉米季Maize 30.5±2.3 10.6±0.8 105.5±8.0 江淮Area between Yangtze River and Huai River 水稻-小麦 Rice-wheat 水稻季Rice 23.4±1.7 8.2±0.6 81.1±5.9 小麦季Wheat 31.5±0.7 14.6±0.3 141.7±3.2 水稻-油菜 Rice-rapeseed 水稻季Rice 29.4±0.4 13.7±0.2 123.4±1.9 油菜季Rapeseed 31.5±0.7 14.6±0.3 141.7±3.2 沿江Edge area of Yangtze River 水稻-油菜 Rice-rapeseed 水稻季Rice 28.8±0.4 13.4±0.2 120.9±1.7 油菜季Rapeseed 32.5±0.9 15.0±0.4 146.3±4.2 双季稻 Double cropping rice 早稻季Early rice 27.7±3.2 12.8±1.5 124.6±14.6 晚稻季Late rice 26.7±2.2 12.3±1.0 120.2±10.0 江南South area of Yangtze River 水稻-油菜 Rice-rapeseed 水稻季Rice 25.6±0.8 11.9±0.4 107.3±3.4 油菜季Rapeseed 30.2±0.5 14.0±0.2 135.9±2.1 双季稻 Double cropping rice 早稻季Early rice 27.2±1.4 12.6±0.6 122.3±6.2 晚稻季Late rice 27.1±1.9 12.5±0.9 122.2±8.4