控制前期营养生长,防止后期早衰,使营养生长和生殖生长平衡协调,多座下、中、上部铃,是棉花高产稳产的关键。下面结合示范田的实际,介绍一下以科学施肥为中心的高产稳产措施及棉株的生长发育情况。1.合理密植。示范田设在南汇县农科所北浜8号田和南浜5号田。肥力中上等。 Control of pre-vegetative growth, to prevent the late premature aging, so that the balance of vegetative and reproductive growth and coordination, a number of lower, middle and upper bell, is the key to high and stable cotton yield. The following combination of the actual field of the demonstration, introduce the scientific fertilization as the center of the high yield and stability of cotton production and growth measures. Reasonable and close planting Demonstration field set up in Nanhui County Agricultural Institute No. 8 North Beida and Nan Bang 5 Tian. Fertility in the finest.