生姜高产优化施肥最佳方案的选择与分析  

A PRELMINARY STUDY ON THE OPTIMUM SCHEME OF APPLYING FERTILIZER TO GINGER

作　　者：徐坤[1] 康立美[1] 

机构地区：[1]山东农业大学,泰安271018

出　　处：《西北农业学报》1992年第4期67-70,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：采用二次正交旋转回归设计法,进行了生姜N、P_2O_5、K_2O肥施用量的试验,建立了生姜产量与N、P_2O_5、K_2O肥用量间的三元二次数学模型。通过对模型解析得出,N肥用量对生姜产量影响最大,但用量过多会引起减产。应用计算机模拟寻优,筛选出试验条件下亩产超2500kg的农艺方案14个,最高产量为2614.06kg/亩,相应的肥料用量为N38.69 kg,P_2O_5 18.91kg、K_2O51.90kg,其比例为2:1:2.7。The experiment designed in quadratic perpendicularity and universal rotation regression with three factors of N, P, K fertilizers, and five levels of each factors. According to the data obtained, a mathematic model describing the relation between the yield and fertilizer quantity was established through calculation with a electronic computer. When analysed, the model showed that the yield was influenced largely by the nitrogen, and the yield decreased the excessive fertilizer applyed. Through imitation with a electronic computer, 14 agronomic schemes of imitation for the yield over 2500 kg per mu were found, and the highest yield in this experiment was 2614. 06 kg per mu, its combination was'0.4871, 0.4390. 0.5002' i. e. applying 38.69kg N, 18.91 kg P_2O_5, 51.90 kg K_2O per mu with the proportion about 2 : 1 : 2.7.

关 键 词：生姜 施肥 数学模型 分析 

分 类 号：S632.506.2[农业科学—蔬菜学]