How to keep the fertilizer in good condition?

I don't know if you have encountered this situation, we all know that the fertilizer is not sold, and bought a bag of fertilizer is not used up, over time found that the fertilizer has not been used.So said has opened the fertilizer must take good care of, small make up sorted out several reasonable storage fertilizer methods, for your reference.
(1) prevent mixing.When chemical fertilizer is mixed together, it is easy to deteriorate the physical and chemical properties.If superphosphate encounters ammonium nitrate, it will increase hygroscopicity, resulting in application inconvenience.
(2) the name of the logo is not true.Some farmers use compound bags for urea, some use urea bags for compound fertilizer or ammonium sulfate, and some use imported compound bags for special fertilizer, so it is easy to make mistakes in the use process.
(3) anti-break bag packaging.If nitrate-nitrogen fertilizer is hygroscopicity strong, after absorbing water can turn into slurry, or even a liquid, should seal storage, generally with a jar or package container storage, tightly covered.
(4) fire prevention.Special ammonium nitrate, potassium nitrate and nitrate nitrogen, in high temperature (200 ℃), decompose the oxygen, flame combustion occurs or explosion.
(5) anti-corrosion.Calcium superphosphate contains free acid, ammonium bicarbonate is alkaline, this kind of fertilizer does not want to contact with the metal container or scale and so on, lest suffer corrode.
(6) fertilizers should be mixed with seeds and food.In particular, volatile ammonium bicarbonate, ammonia and seeds mixed will affect germination, should be paid full attention to.