覆膜栽培是近几年来农业生产中推广的一项新技术。农二师二十三团农试站自1982年以来,连续三年采用覆膜繁育小麦三圃种子,取得了良好的效果。小麦覆膜繁育种子,具有省种、灭草、增产、提高经济效益等优点。 1.方法:在小麦繁殖田中(穗行圃),按试验设计,采取人工平覆膜后点播,穴距20×5厘米,每穴一粒或二粒种子。 2.效果:①苗期地温增高,营养生长加快。据试验资料分析,从3月23日起到4月底,覆膜区5厘米和10厘米地温高于对照15～12.3℃,5月份以后逐渐接近。由于播后覆膜地温增高,湿度适宜,加快营养生长,出叶速度加快,叶 Film-covered cultivation is a new technology promoted in agricultural production in recent years. Agricultural division twenty-three group of agricultural test station Since 1982, three consecutive years of planting three-dimensional wheat seed breeding seeds and achieved good results. Wheat laminates breeding seeds, with provincial species, weeds, increase production, improve economic efficiency and so on. Method: In the field of wheat breeding (spike row nursery), according to the experimental design, take the artificial flat film on demand, the hole spacing of 20 × 5 cm, one or two seeds per hole. 2. Effect: ① seedling geothermal increased nutrient growth accelerated. According to the experimental data analysis, from March 23 until the end of April, the temperature of 5 cm and 10 cm in the covered area was higher than that of the control 15 ~ 12.3 ℃, and gradually approached after May. As the sowing film after the ground temperature increases, humidity is appropriate to speed up vegetative growth, leaf out faster, leaves