摘要
采用二次回归正交旋转组合设计试验，研究种植密度、复合肥施用量对芸豆（Phaseolus vulgaris）产量的影响。结果表明，种植密度和施肥对芸豆产量影响显著，呈现“低一高一低”的变化趋势．随种植密度和施肥量的增大，芸豆产量逐渐提高，当种植密度〉19．345万株／hm^2、施肥量〉326．01ke／hm2时。产量呈下降趋势。建立的数学模型Y=2053．92＋82．76Xl＋78．11X2-138．50Xl^2-225．18X2^2 -108．55X1X2拟合程度较好，与生产实际关系密切。当种植密度为16．86万。22．76万株／hm^2、复合肥施用量为230．7～369．3kg/hm^2时．芸豆产量高于1800kg／hm^2。
Using quadratic regression orthogonal rotation combination design test, the effects of planting density and compound fertilizer amount on kidney bean（Phaseolus vulgaris） yield were studied. Results showed that the planting density and fertilizer application had a significant impact on yield of kidney bean, presenting ＂low-high-low＂ changes. The yield of kidney bean gradually improved with the increase of planting density and fertilizer amount. When the planting density〉193.45 thousand plants per hectare and the fertilizer amount〉326.01 kg per hectare, the yield declined. The fitting degree of the mathematical model Y=2 053.92＋82.76 X1＋78.11 X2-138.50X1^2-225.18 X2^2-108.55 X1X2 for test point was better, and the relationship with the actual production was close. When the density was 168.6-227.6 thousand plants per hectare and the compound fertilizer amount was 230.7-369.3 kg per hectare, the yield higher than 1 800 kg/hm^2 could be obtained.
出处
《湖北农业科学》
2015年第13期3167-3170,共4页
Hubei Agricultural Sciences
基金
重庆市万州区科技计划项目(201301012)
