摘要
为了摸清高淀粉甘薯新品种“万薯34”最佳配套高产栽培技术．为该品种的大面积推广和增产增收提供科学依据．试验以“万薯34”原种为试材，采用四元二次回归正交旋转设计方法，对“万薯34”在栽植密度和施用氮、磷、钾肥料对品种的影响进行了研究。研究结果表明：“万薯34”的最佳综合配套高产栽培技术是：5月中下旬栽插．密度为4500-5000株／667m^2，在中等肥力的田块里种植，667m^2施尿素8～12kg，过磷酸钙28～35kg，氯化钾38-48kg，立冬前后收获，可获得鲜薯3000kg／667m^2，藤叶2300kg／667m^2以上的产量。
In order to fully bring out the yield of the new variety, the suitable high-yield cultivation techniques must be made dear. A scientific foundation was provided for high-yield and expanding the new variety. So the test was set up. The test material was ‘Wanshu 34＇ which was a original variety. The planting density and application amount of N, P, K to sweet potato ‘Wanshu3＇ was studied by mean of quadratic orthogonal regressive rotation design with four factors and five levels. The resesreh shows ; The optimal scheme of high-yield cultivation techniques is ： （i） Planting time is the last ten-day period in May; （ii） Planting density is 4500 - 5000 plants per 667 m^2; （iii） Applying fertilizer is 8 12 kg Urea , 28 - 35 kg Calcium superphosphate, 38 - 48 kg Potassium chloride per 667 m^2 in the medium fertility fields ; （ IV ） Harvesting time is about the Beginning of Winter. The yield is 3000 kg. The fresh sweet potatoes, 2300 kg. Cane and leaves per 667 m^2 can be gained.
出处
《西南农业学报》
CSCD
2006年第1期40-43,共4页
Southwest China Journal of Agricultural Sciences
基金
重庆市科委"十五"育种攻关项目(6659)
关键词
甘薯
“万薯34”
栽培技术
密度
施肥
sweet potato
Wanshu 34
cultivation techniques
planting density
fertilization
