Inside and outside packaging should be complete, bag mouth suture should be flat, the trademark logo must be clear, the factory name should be clear, the composition of the standard to understand, complex scales to find a fair scale. The quality certificate is divided into batches to ensure that the quality corresponds. The majority of chemical fertilizers are solid, ammonium hydroxide is a liquid ammonia, the color is observed, and the crystals of nitrogen, potassium, and white are crystallized. Ammonium ammonium bicarbonate has a strong hygroscopicity, and it has a block shape within its shelf life, and the phosphate fertilizer is in a powder form, and the agglomerated phosphate fertilizer has no effect. Fertilizer dissolves or crystallizes, due to dampness or rain, the fertilizer presents a hard block, and the color is yellow and black. There is a problem with the claim and the fertiliser ticket is purchased.
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