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棉花节约用种技术张亨录，杨世臣１．节约用种的方法点播。是常用的节约用种的方法，一般每公顷播量是３７．５～４５公斤（亩播量２．５～３．０公斤），质量特别好的种子，每公顷播量是２２．５～３０公斤（亩播量１．５～２．０公斤），比条播每公顷节约用种９０～１２...
Cotton conservation techniques Zhang Heng recorded, Yang Shichen 1. Save on species method on demand. Is commonly used methods of saving species, the general broadcast per hectare is 37.5 to 45 kg (mu sowing 2.5 to 3.0 kg), particularly good quality seeds, sowing rate per hectare is 22.5 ~ 30 kg (mu sowing 1.5 ~ 2.0 kg), saving than the broadcast per hectare species 90 ~ 12 ...