水地胡麻密肥高产栽培模型研究

Study on Cultivation Model of Density-fertilizer and High-yield of the Irrigated Land Flax

在宁夏半干旱地区立地条件下,采用二次正交旋转组合回归设计,研究了种植密度和施肥水平对水地胡麻产量的影响。结果表明,参试的密肥因素对胡麻产量的作用由大到小依次为氮肥施用量、有机肥施用量、播种粒数、磷肥施用量,并通过模拟选优,确定了水地胡麻籽粒产量高于1 950.00 kg/hm2的优化农艺方案。

The planting density and fertilizer levels on effect ofthe Irrigated Land flax yield was carried out with quadratic orthogonal rotation combination designs under the conditions of semi-arid areas in Ningxia Hui Autonomous Region. The result showed that the tested factors on the density of fat production in the role of flax followed in descending order of the amount of nitrogen fertilizer facilities, the amount of organic manure, sowing grains, the amount of phosphate fertilizer facilities. Based on the optimization program of the model analysis, the combination scheme of agronomic measures for flax yielding over 1 950.00 kg/hm^2 were defined and proved by demonstration.