旱地坑种马铃薯栽培技术方案优化决策分析

Optimal decission making analysis of cultivation technigue scheme for the hole planted potatoies in arid areas

采用回归正交设计的方法，研究了黄土丘陵沟壑区第三副区榆林沟流域坑种马铃薯产量与种植密度、有机肥、氮肥、磷肥的施用量之间关系，并通过对所建模型的解析以及对所选方案的分析，提出了获得马铃薯高产栽培的优化方案。

The design methed of quadratic orthogonal regvession had been applied in the present experiment to strudy the relationship between the yield of hole planted potatoes and the primary factors of hole plented potato cultivation, such as planting density, amount of organic fertilizer applied, amount of nitrogen applied, amount of phosphours applied, through optimum analysis and simulation of the yield and economic profit models, the appropricte cultivation technique schemes for synthetical aims of high yield of potato were proposed.