摘要
以蓝山长豆角为试验对象,采用二次回归"3415"(3因素4水平15个处理)田间试验设计,研究湖南省道县清塘镇河流冲积物发育成的土壤上的豆角施肥效应。结果表明:施用有机肥对豆角的增产效果显著;在施用一定量有机肥的基础上,氮肥的增产效应居首位,增产36.8%;钾肥的次之,增产19.8%;磷肥的增产效果较差,增产18.9%。通过对试验数据的三元二次回归模型模拟分析,豆角产量与氮、磷、钾肥施用量之间有极显著的回归关系,F=36.08(F0.01=14.66),分析得出豆角最大施肥量的农艺方案为:施N12.3 kg/667m2,P2O55.93 kg/667m2,K2O 11.93 kg/667m2;最佳施肥量的农艺方案为:施N 12.11 kg/667m2,P2O55.92 kg/667m2,K2O11.55 kg/667m2,两种方案施肥量接近。
The Lanshan Vigna sinensis (L.) Savi was taken as experimental object, and adopting quadratic regression and"3415" experiment design to study the fertilizer efficiency of Vigna sinensis (L.) Savi planted in the soil developed from river alluvium in Qingtang Town, Daoxian County, Hunan Province. The results showed that the application of organic manure had huge impact on yield of Vigna sinensis (L.) Savi;on the basis of applying a certain amount of organic fertilizer, nitrogen fertilizer had the best yield increasing effect with 36.8%, followed by kalium fertilizer with 19.8%, and potassium fertilizer was the worst with 18.9%. Through simulated analysis of the test data by quadratic regression model, there were extremely significant regression relationships between yield of Vigna sinensis (L.) Savi and fertilizer rates of nitrogen, phosphorus, and potash with F=36.08 (F0.01=14.66). The analysis results indicated the maximum fertilizer rates of N, P2O5 and K2O were 184.5 kg/hm2, 88.95 kg/hm2 and 178.95 kg/hm2, respectively, the optimum fertilizer rates of N, P2O5 and K2O were 181.65 kg/hm2, 88.8 kg/hm2 and 173.25 kg/hm2, respectively.
出处
《湖南农业科学》
2013年第11期41-43,48,共4页
Hunan Agricultural Sciences
基金
国家测土配方施肥补贴资金项目资助
关键词
豆角
肥料效应
“3415”试验
道县
Vigna sinensis(L.) Savi
fertilizer efficiency
'3415' experiment
Daoxian County
