1972年起,我们进行了黄瓜低温育苗和在塑料立壕子里栽培黄瓜的科学试验。3年来的生产实践证明,采用本法后黄瓜上市日期逐年提早,产量不断提高。主要作法是: 一、培育低温长龄老棒苗培育长龄不徒长的老棒苗是黄瓜早结瓜、多结瓜的基础。低温、干旱、短日照是培育长龄老棒苗的必要条件。一般苗龄以75天左右为好,再长不易办到,再短瓜码稀。 Since 1972, we have conducted scientific experiments on cucumber seedlings at low temperature and cucumbers in plastic trenches. Three years of production practice has proved that the adoption of this Act after the listing date of the cucumber earlier, rising output. The main approach is: First, to cultivate low-temperature long-term old sticks to nurture long-term growth of old sticks is the cucumber early fruiting, multi-knot basis. Low temperature, drought, short sunshine is a necessary condition for cultivating old seedlings. General seedling age of about 75 days as well, longer not easy to do, then short melon code thin.