论文部分内容阅读
山楂树花量大、消耗营养多、落花落果严重,影响山楂产量的迅速提高。因此,在做好果园常年管理的基础上,必须针对山楂的生长发育特点,搞好山楂花前花后的几项管理。 1.花前追化肥:山楂开花前20～30天,在树冠下挖放射状施肥沟,深度20厘米左右。每株成龄树施氢铵5斤,有条件的应随肥灌水。施肥后用土封严。
Hawthorn spent large amounts of nutrition and more, falling flowers serious, affecting the rapid increase in hawthorn production. Therefore, on the basis of perennial management of orchards, it is necessary to focus on the growth and development characteristics of hawthorn and do a good job of the management of hawthorn before flowering. 1. Flower chasing fertilizer before: hawthorn flowering 20 to 30 days before digging in the canopy radial fertilizer ditch depth of about 20 cm. Each tree plant ammonium hydrogen fertilizer 5 pounds, conditional irrigation should be with fertilizer. After fertilization with soil sealed.