100 Questions On Fertilizers Knowledge(2)
8. What are the misunderstanding of fertilization among farmers at present?
- BB fertilizer highlightened, organic fertilizer ignored;
- Nitrogen fertilizer highlightened, phosphorus, potash fertilizer ignored, neglect micro fertilizer;
- Highlighten grain’s yield and neglect products quality;
- Application method is old and backward.
9.How about Nutrient content of various fertilizers?
- Ammonium bicarbonate N17%;
- Diammonium P2O546 N18 % ;
- Potassium sulfate 50%.
- Potassium chloride 60%.
- Urea N46 %
10. How is the fertilizer utilization rate? Nitrogen 35%;P 10 ~ 20%;Potash 50 ~ 60%
11. How to identify true or false fertilizers?
- See: whether the packaging is normal, whether the particles smooth and evenly;
- Touch: friction fertilizer to see whether the oil comes out or sweat;
- Dissolution: the lower the residue, the better;
- Burning: bubbling, melting, burning.
12.How can I gurantee the quality fertilizer?
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