摘要
在大田栽培条件下,研究了不同的种植密度和施氮量对马铃薯的单株薯重、产量、块茎的淀粉含量和商品率的影响。结果表明:密度和施氮量分别为79500株/hm2、225 kg/hm2时,单株薯重、产量、商品薯率达到最大值;畸病薯率随施氮量不同没有规率性变化;种植密度大,块茎的淀粉含量反而减小。
The text studied the effect of planting density and amount of nitrogen on tuber yield and starch contain and commodity potato rate. The results showed that： Tuber yield and commodity potato rate were both the largest when planting density and amount of nitrogen were 79,500stubs/ hm^2,225kg/hm^2. However the rate of malformations potatoes and unhealthy potatoes had no changes in the law. And with greater planting density, the starch content reduced.
出处
《琼州学院学报》
2009年第5期55-57,共3页
Journal of Qiongzhou University
