论文部分内容阅读
早春蔬菜地膜覆盖栽培主要应掌握以下关健技术:1.早育壮苗地膜覆盖栽培的目的是早熟高产,因此要选好对路品种,品种最好耐寒、抗病力强、早熟丰产(如湘椒6、7号以及湘研系列早辣椒;湘番茄1、2号早熟品种;湘早茄、早青茄;湘黄瓜1、2、3号等;湘豇1、2号及长豇3号豆角),以此为前提,选择背风向阳、地势平缓、水源方便的沙壤土作苗床。蔬菜壮苗培育阶段注意早晩温度变化,勤揭膜、勤盖膜、勤施粪水,同时防治立枯、猝倒病。2.重施底肥地膜覆盖之前应重施底肥、一般按蔬菜作物一季所用总肥料量的60%~70%作为底肥一次性施入。底肥应以有机肥为主,果菜类应适当增施磷钾肥,底肥采用窝施或沟施的方式在定植前3~5天施入。
Early spring vegetable mulching cultivation should master the following key technologies: 1. Ziyu strong seedling mulching cultivation purpose is early maturity and high yield, so to choose the right varieties, the best cold hardiness, disease resistance, early maturity and high yield (such as Hunan Pepper No. 6,7 and Xiangyan series of early pepper; Xiang Tomato 1,2 precocious varieties; Xiang early eggplant, as early as tomato; Hunan cucumber 1, 2 and 3; Xiang-chiang 1,2 and 3 Beans), as a prerequisite for the selection of lee sunny, flat terrain, convenient source of sandy loam soil bed. Nursery stocking vegetables, pay attention to the early temperature changes, shed film, Qin cover membrane, diligence Shi manure, at the same time prevention and control of dry and damping off. 2. Re-applied basement film should be re-applied before the basement fertilizer, usually based on the total amount of fertilizer used in vegetable crops in the season of 60% to 70% as a one-time application of base fertilizer. Base fertilizer should be based on organic fertilizer, fruits and vegetables should be appropriate to increase phosphorus and potassium fertilizers, fertilizers or fertilizers by means of nesting 3 to 5 days before planting.