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1.外包装识别法主要看外包装是否按复合肥包装要求,三证(即生产许可证、肥料登记证、产品合格证)是否齐全有效,还要看标明含量是否与内在含量相符,切不可贪图便宜而上当受骗。2.简易目测法一般来说,只要是真品,专用复合肥都要经过一套复杂程序制成,或挤压造粒或圆盘造粒而成,颜色表现单一,或灰白色或淡灰色,很少有杂色,且造粒比较均匀,或圆形或圆柱形。
1. Outer packaging identification mainly depends on whether the packaging requirements of the compound fertilizer packaging, three cards (that is, production license, fertilizer registration certificate, product certification) is complete and effective, but also to indicate whether the contents of content and consistent with the mark, must not Cheating cheaper cheated. 2. Simple visual method In general, as long as the real thing, special compound fertilizer to go through a complex process, or extrusion granulation or disc granulation, the color of a single, or gray or light gray, very Less variegated, and granulation is more uniform, or round or cylindrical.