棉花的蕾期为其一生中生长最快、最活跃之时期,对肥料十分敏感。生产实践证明,此时施肥应讲究:早适时早施,一般在现蕾前后即施。若施的过迟,前期养分脱节,营养生长不良;施得过早,易导致疯长,不能实现枝多、蕾多、增产之目的。苗小、苗弱、地瘦、干旱,应早施;苗旺、地肥、多雨、可不施或迟施、少施。 The bud of cotton is the fastest growing, most active period of its life, very sensitive to fertilizer. Production practices have proved that at this time should pay attention to fertilization: as early as early Shi Shi, Lei Shi before and after the general application. If the implementation of too late, early nutrition out of line, malnutrition poor; premature, easily lead to soaring, can not achieve more branches, Lei Duo, the purpose of increasing production. Miao small, weak seedlings, lean, dry, should be early Shi; Miao Wang, fertilizer, rainy, can be applied or late Shi, less Shi.