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根据高产单位的验经,棉花蕾期的培管要以“控”为主,控中有“促”。比较理想的长相是:既要发棵,搭好丰产架子;又要稳长,防止封行过早。现蕾后要求蕾色深绿,蕾较大,不脱落,茎杆色泽红青各半。花铃期的培管要以“促”为主,促中有“控”。这个时期的长相要求是:开黄花后生长旺盛,叶色深绿,健壮有力,黄花大,开得猛,座挑后逐渐封行,九月上中旬后叶色逐渐退淡,不早衰。为了达到这种要求,从肥水角度来讲,要做到普施当家肥,巧施接力肥,重施花铃肥,补施盖顶肥。
According to the test of high-yielding units, the training of cotton bud stage should be “controlled” mainly in the control of “promotion.” The ideal looks are: it is necessary to send trees, take shelves of high yield; but also to stabilize, to prevent the premature closure. After the bud requires budding dark green, larger buds, do not fall off, stem color red and green half. Flower bell training to “promote” mainly in promoting “control.” This phase of the looks of the requirements are: vigorous growth after opening yellow, dark green leaves, strong and powerful, large yellow, open fierce, pick gradually after the closure of the seal, in mid-September after the color gradually fade, not premature decline. In order to achieve this requirement, from the point of view of fertilizer and water, it is necessary to achieve common fertilizer, fertilizing relay, re-applying Hua Ling fertilizer, top-dressing fertilizer.