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冬暖大棚的兴起,促进了反季节蔬菜栽培的迅速发展,经济效益成倍增长。有了合理的大棚结构,再加上合理的栽培茬口,其经济效益就会更加理想。一、合理栽培茬口的安排原则 (一)上下茬轮作原则冬暖大棚栽培蔬菜,一年多茬,不可能像大田作物那样,实行轮作,但起码要做到上下茬轮作,以避免因连作带来的病虫害加重和某种养分消耗过多,造成养分供给不平衡而减产。 (二)栽培茬口与大棚设施配套原则目前菏泽地区推广的冬暖大棚其棚体高矮、跨度大小、棚膜选用、不透明覆盖物等各不相同。因此在茬口安排上必须与之相配套。棚型结构合理,温光性能较好的大棚可安排深
The rise of winter warm greenhouse, promoting the rapid development of anti-season vegetable cultivation, double the economic benefits. With a reasonable greenhouse structure, coupled with a reasonable crop cultivation, its economic benefits will be more ideal. First, the rational cultivation of stubble arrangement principle (A) the principle of upper and lower crop rotation Winter greenhouse cultivation of vegetables, more than a year stubble, like the field crops that can not be implemented, but at least to do crop rotation, in order to avoid continuous operation Increased pests and diseases and consumption of some nutrients, resulting in nutrient imbalances and cut production. (B) the cultivation of stubble and greenhouse facilities supporting principle Heze region to promote the winter shed shed height, span size, selection of ophthalmic membrane, opaque cover and so different. Therefore, the arrangement of crop rotation must be matched. Shed type structure is reasonable, temperature and light better performance of the greenhouse can be arranged deep