1.选地、隔离选择地势平坦,土层深厚,有机质含量高,具有排灌、隔离条件和墒情好的地块做地膜制种田。 2.整地、做床精细整地,规格做床。床面平,细而直,残茬不外漏,无土块凸起,以免划破膜。一般床的带距为120厘米,床宽80厘米,高10厘米。床沟宽40厘米,起小垄做父本行。 3.施肥、覆膜由于覆膜保温保水,土壤中微生物活动旺盛,养分分解释放快。土壤的物理性状好,植株根系发达,吸收能力增强。所以要施足肥料。(1)基肥要集中施用。在做床开沟时每亩施农家肥 1. Selection, selection of flat topography, deep soil, high organic matter content, with irrigation and drainage, isolation conditions and soil moisture good plots to do film farming. 2. Site preparation, making beds fine preparation of soil, specifications do bed. Bed flat, thin and straight, stubble is not leakage, no soil bulge, so as not to scratch the membrane. General bed with a distance of 120 cm, 80 cm wide bed, 10 cm high. 40 cm bed ditch, from a small ridge father line. 3. Fertilization, film mulching because of membrane insulation, microbial activity in the soil strong, nutrient release faster release. Soil physical properties, plant roots developed, enhanced absorption. So apply enough fertilizer. (1) Basal fertilizer should be concentrated application. Doing farm fertilizer per acre while doing bed ditching