摘要
为探索湖南省甘薯的种植密度、栽插期、施氮量、施磷量及施钾量与产量的关系,以徐薯22为试验材料,采用5因素二次回归正交旋转组合设计和DPS分析方法,对淀粉型甘薯品种高产栽培因子进行了研究。结果表明,徐薯22目标产量在2 243.42kg/667m2以上的优化农艺措施方案为:施N量9.63～10.37 kg/667m2,栽插期5月23日～5月/27日,密度3 965～4 035 kg/667m2,施K量19.31～20.69 kg/667m2,施P量28.36～31.64 kg/667m2。
In order to explore the relationships between yield and planting density, transplanting period, nitrogen fertilizer rate, phosphor fertilizer rate and potassium fertilizer rate, the Xushu22 was used as material and the quadratic regression orthogonal rotatiorial combinational design with five factors and the DPS analysis method were adopted to conduct study on high yield cultivation factors for starch type sweet-potato varieties. The results showed that the optimized scheme of agronomic measures for Xushu22 aimed at over 33 651.3 kg/hm2 was as follows： fertilizer rates of N, K and P were 144.45-155.55 kg/hm2, 289,65-310.35 kg/hm2 and 425.4-474.6 kg/hm2, respectively; transplanting period should be from 23rd May to 27 May; planting density should be 59 475-60 525 kg/hm2.
出处
《湖南农业科学》
2012年第12期23-25,共3页
Hunan Agricultural Sciences
基金
现代农业产业技术体系(CARS-11-C-16)
关键词
甘薯
淀粉型
栽培因子
分析
sweet-potato
starch type
cultivation factor
analysis
