棉花单产是由每亩总铃数、铃重和衣分构成的。从同一品种来说,衣分受外界条件影响较小,而每亩总铃数和铃重,由于肥水管理、群体结构、品种选用等条件的不同,经常上下波动。生产上会有这种现象,“数数铃子不少,收收产量不高”。因此,如何协调好每亩铃数和铃重的关系,是夺取棉花高产的关键。 Cotton yield per mu by the total number of bell, boll weight and clothing composition. From the same species, the clothing points are less affected by external conditions, and the total number of bolls per acre and boll weight, due to fertilizer and water management, group structure, the choice of varieties of different conditions, often fluctuate. Production will have this phenomenon, “a lot of numbers bell, harvest yield is not high.” Therefore, how to coordinate the relationship between bolls per acre and boll weight is the key to seize the cotton yield.