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试验表明：“思福”叶面肥能促使棉花生长健壮，增强抗性，改善品质，提高产量。增产率为１５ ．５ ％ ，增产值为３ ５６５ ．５元／ｈ ｍ ２ ，产投比为２４ ．３∶１ 。
Experiments show that “Sifu” foliar fertilizer can promote the robust growth of cotton, enhance resistance, improve quality and increase yield. Yield increase of 15. 5% increase in value of 3 565. 5 yuan / h m 2, production and investment ratio of 24. 3: 1.