奶花芸豆种植密度与施肥量优化组合模式的研究

采用正交回归旋转组合设计，研究了密度、氮（N）、磷（P2O5）、钾（K2O）施用量对奶花芸豆产量的影响，通过田间试验测定参数，利用计算机技术对试验数据进行处理，建立了产量函数模型，经计算机模拟寻优，筛选出了产量的最佳农艺措施组合方案。在试验条件下，当奶花芸豆栽培密度为150000株／hm^2，施氮量300kg／hm^2，施磷量200kg／hm^2，施钾量45kg／hm^2组合时，产量可达到3833．4kg／hm^2。

Study on Optimum Moder of Planting Density and Fertilizing for Phaseolus vulgarisl

The relationship of Phaseolus vulgarisl yield with density, N, P and K fertilizer applied amount was studied, and a mathematical model involving the four factors affecting yield was established using the orthogonal rotation design of quadratic regression. The yield function model was established accordingly to parameters through field tests and data treated by computer techniques. The best agronomic measures complex project was selected and developed by computer imitation. The highest yield in the experiment caught up to 3 833.4 kg/hm2, the most suitable density was 150 000 plants/hm^2, the best amounts of N was 300 kg/hm^2, P was 200 kg/hm^2and K was 45 kg/hm^2.