作　　者： ; ; ; ; (田昌庚）;

机构地区： 泰安市农业科学研究院

出　　处： 《中国农学通报》 2010年第10期122-127,共6页

摘　　要： 探索适合不同基因型甘薯品种综合栽培技术,合理配置影响甘薯产量的主要因子,提高甘薯产量,并适当降低化肥的过度使用量,起到降低生产成本,保护环境的目的。对淀粉型甘薯新品种＂泰中9号＂采用五因素（1/2实施）通用旋转回归组合设计试验方法,分析了氮肥、磷肥、钾肥、密度、插秧期对该甘薯品种鲜薯产量的影响,结果表明影响程度依次为：钾肥（X3）〉磷肥（X2）〉密度（X4）〉氮肥（X1）〉插秧期（X5）。＂泰中9号＂甘薯产量在48977.25~61919.4kg/hm2的1532个组合中优化栽培方案是：折合纯氮160.5~178.2kg/hm2,纯磷81.6~90.15kg/hm2,纯钾227.255~297.45kg/hm2,适宜的栽培密度范围是60720~67875株/hm2,适宜的插秧期范围为4月22—29日。研究可为能源型甘薯＂泰中9号＂的高产栽培提供依据和参考。 Suitable cultivation models designed for certain varieties could increase crop yield and reduce the excessive use of chemical fertilizers. Using the starch-rich sweet potato cultivar‘Taizhong 9’as planting material, a field trial with general rotary regression design under 5 factors was conducted to study the effects of nitrogen, phosphate, potassium, planting density and cultivation time on yield of fresh storage roots. The results indicated that these factors in order of importance were potassium fertilizer （X 3）, phosphorus fertilizer （X 2）, planting density （X 4）, nitrogen fertilizer （X 1） and cultivation time （X 5）. The suitable model for‘Taizhong 9’in the 1 532 combinations with yield between 48 977.25 and 61 919.4 kg/hm2 could be designed as N 160.5-178.2 kg/ hm2, P2O5 81.6-90.15 kg/hm2, K2O 227.255-297.45 kg/hm2, planting density of 60 720-67 875 plants//hm2, and cultivation time from April 22 to 29. This study provided a basis and reference for high-yield cultivation of cultivar‘Taizhong 9’in the region.

关 键 词： 甘薯 泰中 号 旋转回归设计 数学模型 效应分析 产量

领　　域： [农业科学]