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802植物生长调节剂喷洒棉花增产效果最好 ,经济效益最高。其次为福乐定和磷酸二氢钾 ,也有一定的增产增收作用。以上叶面肥均有一定的推广价值。
802 plant growth regulators spraying cotton yield the best and most cost-effective. Followed by Fullertine and potassium dihydrogen phosphate, but also increase production and income. Above foliar fertilizer has a certain promotional value.