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化学肥料品种繁多,性质各异,准确施用才能达到预期的效果。化肥厂出产的肥料,在肥料袋上都注明了名称,各养分的含量以及出厂日期及厂家等。由于周转运输,常将肥料袋钩破而更换包装,又没有把肥料种类及含量等注明,或在贮存过程中受潮而使标签模糊或包装腐朽,已分辨不清肥料品种了。这样就容易将肥料错用而造成不应有的损失。如该施氮肥者错施钾肥,不仅起不到增产作用,反而
Chemical fertilizers a wide variety of different nature, accurate application in order to achieve the desired results. Fertilizer fertilizer production, fertilizer bags are marked on the name, the content of nutrients and the date of manufacture and manufacturers. As a result of the turnaround, the fertilizer bags are often broken and the packaging is changed to hooks, and the types and contents of the fertilizers are not specified, or the labels become blurred or decayed due to dampness during storage, and the varieties of the fertilizers have not been distinguished. This makes it easy to misuse fertilizer and cause undue losses. If the nitrogen fertilizer wrongly applied potassium, not only failed to increase production, on the contrary