一蕾铃脱落的情况1953年河北省棉花落蕾落铃比较严重,根据各基点调查:群众的一般地,即基肥、追肥数量较少者,蕾铃脱落率为75-80%,完全不施肥的脱落在80%以上,施肥较多的丰产地一般脱落在60-70%左右,共中整枝特别精细者为50-60%,还啊部份徒长的棉田脱落有达到90%左右。棉花落蕾落铃的多少,各个时期不同,根据武安南宫等地的各类棉田调查,7月中旬蕾铃脱落率一般 A fall of the bell The situation of cotton fall and fall in 1953 was more serious in Hebei Province. According to the survey of the base stations, the general population, ie, the number of basal and top dressing, was 75-80% Fall off more than 80%. Fertilizers with more fertilizers generally fall off at about 60-70%. Specially fine cutters are 50-60% in total. Falling cotton fall and fall bell how many, different periods, according to Wu’an Nangong and other places of various types of cotton fields survey, in mid-July the falloff rate of the general