近年来,地膜棉和移栽棉面积不断扩大。这些早发棉田,棉花现蕾开花早,伏前挑多。这批早桃对产最构成虽无关宏旨,但它却改变了株体内营养运输方向,抑制了营养生长,往往造成早发早衰,减产降质。大量生产实践证明,棉花一旦出现早衰,即使 In recent years, mulching cotton and transplanted cotton area has been expanding. These early-onset cotton fields, cotton buds early flowering, volt pick up more. These early peaches on the production of although the most important non-essential macro, but it has changed the direction of nutrient transport in vivo strains, inhibit the growth of nutrition, often resulting in premature senility, reduce production. Mass production practice has proved that once the premature decline of cotton, even