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本试验是探求 pp_(333)在富士苹果上应用的合适方法。材料和方法供试 pp_(333)由江苏省建湖农药厂生产,试验在宿迁县南蔡果园进行,树龄8年生,土壤为黄河故道冲积沙土,树势基本一致,株产30～50公斤,处理分:①土壤施入:在5月30日,每平方米树冠施入0.5克、1克。开浅沟施入。②叶面喷布:在盛花后、花后1月(5月30
This test is to explore pp_ (333) in Fuji apples suitable method. Materials and Methods Test pp_ (333) was produced by Jianhu Pesticide Factory in Jiangsu Province. The experiment was carried out in Nan Cai Orchard, Suqian County. The tree was 8 years old. The soil was the alluvial sandy soil in the old course of the Yellow River. Treatment points: ① soil applied: on May 30, per square meter crown applied 0.5 g, 1 g. Open a shallow groove into. ② foliar spray: in full bloom after flowering in January (May 30