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为了探索棉花高密度栽培的生育规律,掌握高产栽培技术,我们观察了高密度棉花的生育进程,七叶期每两天观察一次,蕾花期每天观察,结果如下:试验品种为沪棉204,前茬为散播早熟三号大麦,6尺畦种4行棉花。(宽窄行)4月30日播种5月23日移栽,株距8.5寸,密度14000株/亩,对照密度为5700株/亩。移栽前条施磷肥、饼肥各50斤作种肥。移栽后用5担浓粪作活棵肥,6月3日又用30斤磷肥浸8担大粪作提苗肥,6月14日浇氨水40
In order to explore the fertility rule of high-density cotton cultivation and to master the high-yielding cultivation techniques, we observed the growth process of high-density cotton and observed it every two days at bud stage. The results were as follows: Crops to spread precocious barley No. 3, 6-foot-4 species of cotton. (Width and width) April 30 sowing May 23 transplanting, spacing 8.5 inches, the density of 14,000 plants / mu, the control density of 5700 plants / mu. Phosphate fertilizer before transplanting, 50 kg of cake fertilizer for seed fertilizer. After transplanting with 5 cans of solid manure for living fertilizer, June 3 and 30 kg of phosphorus leaching 8 dung for mention Miao fertilizer, June 14, ammonia 40