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1地膜覆盖。地膜必须清洁干净,以免影响透光性能。将地膜平铺在植株上,膜边与畦边齐平,即盖顶不盖边,露出四周,有利于气温自动调节,防止膜内气温过高而烧苗。膜四角用结实的绳子系好,另一端分别系上石块或红砖,防止风把膜吹走,通过调节绳子长短,使膜面微呈乌龟背形,以利排水。如膜上积水或积雪,要及时清除。一般情况下不揭膜。如需追肥,可掀开地膜,淋施
1 mulching. Film must be clean, so as not to affect the light transmission. Film will be tiled in the plant, the membrane edge flush with the rim, that is, the top cover is not covered edge, exposing around, is conducive to temperature regulation, to prevent membrane temperature is too high and burn seedlings. The four corners of the membrane are fastened with strong ropes and the other ends are tied with stones or red bricks respectively to prevent the wind from blowing away the membrane. By adjusting the length of the rope, the membrane surface is slightly turtle-shaped to facilitate drainage. Such as water or snow film, to be promptly removed. Under normal circumstances not exposed film. For top dressing, you can open the film, shower facilities