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为了缩短棉花缓苗期,1978年我们在用肥上作了对比试验,结果表明移栽时用磷肥加草木灰作底肥缓苗期短,现蕾快,成熟早。一、试验概况试验土质为沙性,地力基本平衡,重茬田。前茬是浙114元麦,5月23日收割;棉花是5月4日薄膜育苗,5月25日移栽。品种是中棉所7号,真叶1.5片,密度每亩4000株,用移苗器开塘移栽。试验处理:一、
In order to shorten the cotton rejuvenation period, we made a comparative experiment with fertilizer in 1978, the results showed that the transplanting of phosphate fertilizer plus grass ash as a slowing seedling period, bud sooner, mature early. First, the test profile The test soil is sandy, basic balance of soil, crop fields. The former crop is 114 yuan wheat Zhejiang, May 23 harvest; cotton is May 4 film nursery, May 25 transplanting. Variety is 7 in the cotton, true leaves 1.5, 4000 acres of density per plant, with a transplanter Kai Tong transplanting. Test treatment: First,