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1.长江流域两熟棉区占全国棉田三分之一,小麦棉花两熟为该棉区的主要栽培制度。通过研究肯定了改变群众习惯小麦撒(点)播为宽窄行或宽幅条播方式,为克服两熟间作矛盾的基本关键,从而 可以加强麦田管理,实行棉花春耕施基肥、条播、及时间苗等一系列的技术改进措施,增加两熟产量。根据1951—1952年在湖北主要棉区内26处麦棉条播方法(小麦宽窄行条播)与群众习惯撒(或点)播对比示范结果,小麦每亩平均增产11.29斤(或8.39%);棉花每亩平均增产17.23斤(或16.58％)。目前这一技术措施已在各地广泛推行,取得良好成效。一般小麦宽窄行条播,两行麦的窄行距(或宽幅的播幅)以5—7寸,宽行距(或宽幅的幅距)以13—15寸为合适。在较肥的地可採用连种三行(窄行距各5寸)麦後隔一宽行(宽行距1尺),棉花行距2尺;在较瘦的地上可採用连种两行(窄行距5寸)麦後隔一宽行(宽行距1尺),棉花行距1.5尺。 2.本地区一般麦棉播种时期,从清明开始到小满止,先後拖长一个半月。据1955年在武昌试验结果:自清明起播种较早的表现结果较好,生育快,成熟早,产量高。清明播种的比谷雨播种的每亩增产籽棉5.72斤(或2.23%),比立夏增产21.52斤(或8.38％),比小满增产33.75斤(或13.15%)。根据武昌历年气象记载及1955年观测结果:本地清明时地温度在12℃以上,?
1. The two cotton fields in the Yangtze River Basin account for one-third of the national cotton fields. Two cotton fields of cotton are the major cultivation systems for the cotton area. Through the study confirmed that changing the people’s habits wheat (broadcast) broadcast as wide or narrow row or wide format broadcast, in order to overcome the two key conflicts as the basic key to wheat field management can be strengthened, the implementation of cotton spring fertilizer, sowing, and time seedlings A series of technical improvement measures to increase the yield of two crops. According to the demonstration results of 26 wheat-cotton sowing methods (sowing of wheat width sowing) and spreading (or spot) sowing by the masses in 1951-1952 in the main cotton area of Hubei, the average output of wheat increased by 11.29 kg (or 8.39%) per mu; An average yield of 17.23 kg (or 16.58%) per acre. At present, this technical measure has been widely implemented around the country and achieved good results. In general, wheat narrow and narrow rows are broadcasted. The narrow rows (or wide sections) of two rows of wheat are suitable for 13-15 inches with a width of 5-7 inches and a wide spacing (or wide width). In the more fat land can be used even three rows (5 inches narrow row spacing) after the wheat a wide line (1-foot wide row spacing), cotton spacing 2 feet; in the leaner field can be used even two rows (narrow row spacing 5 inches) Wheat wide and wide (wide spacing 1 foot), cotton spacing 1.5 feet. 2. The region generally wheat and cotton sowing period, starting from the Ching Ming to a small full stop, has been delayed for a month and a half. According to the results of the experiment in Wuchang in 1955, sowing earlier from Ching Ming showed better results, faster birth, earlier maturity and higher yield. An increase of 5.72 kg (or 2.23%) of seed cotton per acre compared with Guyu in Ching Ming increased 21.52 kg (or 8.38%) over that of summer and 33.75 kg (or 13.15%) higher than that of Xiaomin. According to meteorological records of Wuchang over the years and 1955 observations: the local temperature when the Qingming 12 ℃ above?