禾施丰叶肥在脱毒甘薯上的应用效果

Effect of Foliar-Heshifeng on Sweet Potato with Virus Free

脱毒甘薯喷施禾施丰叶肥后薯苗期明显增加成苗数 ,比对照增加 2 5 .1% ,百苗重增加 ,成活率提高 ,栽后生根返苗快 ,繁殖系数高。大田喷施禾施丰叶肥能增加脱毒甘薯的分枝数 ,蔓粗且短 ,地上部生长健壮 ,叶面积系数合理 ,结薯数增加 11%～ 15 % ,前期薯重占总产量的比率高 ,商品率高。以前、中、后喷施 3次处理效果最好 ,比对照增产 17.9%。

The application effect of Heshifeng, a kind of complex foliar, on sweet potato seedling growth was significant. The rate of health seedling was increased by 25.1% compared with check variety, the weight of seedling increased, the root system grew fast after transplanting and the rate of seedling multiplication was high. After the application of Heshifeng, the number of branches was increased, the aerial parts grew healthy and strong, the coefficient of leaf area was reasonable and the rate of sweet potato setting increased 11%～15%. The method of three times' treatments with Heshifeng in different growth period was best for sweet potato yield and quality, and its yield increased 17.9% and it had good commercial character.