养分专家系统推荐施肥对马铃薯产量及肥料利用率的影响

梁俊梅,张君,安昊,景宇鹏,李焕春,段玉

Effects of Recommended Fertilization by Management Nutrition Expert System on Potato Yield and Fertilizer Use Efficiency

Junmei Liang,Jun Zhang,Hao An,Yupeng Jing,Huanchun Li,Yu Duan

表8 养分专家系统推荐施肥对经济效益的影响

处理 Treatment 产值 Value of output 肥料成本 Fertilizer cost 纯收入 Net income NE较其他处理增收 Increase income of NE compared with other treatments FP 42 654.2 3 042.6 39 611.6 3 177.2 NE 45 757.6 2 968.8 42 788.8 - NE-N 34 916.0 2 055.3 32 860.7 9 928.1 NE-P 38 481.9 2 173.5 36 308.4 6 480.4 NE-K 37 931.3 1 708.8 36 222.5 6 566.3 ST 42 954.7 2 588.5 40 366.2 2 422.6