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柑桔座果率普遍较低,一般在4％以下。笔者在三明市三元区、沙县、宁化、明溪等地调查,多数果场采用以下几种方法,可明显提高座果率。1.喷洒鲜人尿 在柑桔谢花3/4时,用5～8％的新鲜人尿液,进行叶面喷施,2周后再喷1次。2.喷洒混合肥 柑桔谢花1/2时,用0.2％的硼砂液、0.3％的磷酸二氢钾和0.4％的尿素混合液进行喷施,每隔7天左右1次,共喷2～3次。3.喷赤霉素 花谢后至幼果
Citrus fruit rate is generally low, generally below 4%. The author in Sanming City Sanyuan District, Shaxian, Ninghua, Mingxi and other places survey, the majority of fruit farms using the following methods, can significantly improve the rate of fruit set. 1. Spray fresh human urine Citrus Xie flowers 3 / 4:00, with 5 ~ 8% of fresh human urine, foliar spray, spray 2 times after 1 time. 2. Spraying mixed fertilizer citrus Xie Hua 1/2, with 0.2% borax solution, 0.3% of potassium dihydrogen phosphate and 0.4% urea mixture for spraying, every 7 days or so, a total of 2 ~ 3 times. 3. After spraying gibberellin flower to young fruit