What are the common misconceptions about fertilizers?
Fertilizer is one of the indispensable means of production in agricultural production. In recent years, farmers' understanding of fertilizers has been continuously improving, but quite a few farmers still have misconceptions about fertilizers.
Low yields are blamed on fertilizers
A small number of users believe that if yields will not go up, it must be the fertilizer's fault. In fact, there are many reasons why yields will not go up, such as weather, soil quality, fertilization methods, the choice of fertilizer products, seeds, pesticides and field management. All aspects must be examined; whether the fertilizer is good or bad is only one of these factors.
Same formula, same dosage, same effect
The reasoning is very simple: the main difference between a fat person and a thin person is not how much they eat, but how much they absorb. The same applies to fertilizers. With the same formula and the same dosage, there will be an obvious difference in nutrient utilization rate due to the product itself, which is exactly why we now need to vigorously promote scientific formula fertilization technology.
Once a fertilizer containing nitrogen, phosphorus and potassium is used, no other fertilizers are needed
Some farmers believe that after applying ammonium bicarbonate, phosphate fertilizer and potassium fertilizer, there is no need to apply any other fertilizers. This is wrong. Some farmers also think that after using a good compound fertilizer, there is no need to apply other fertilizers. This is also incorrect. Single-nutrient fertilizers or compound fertilizers generally contain only nitrogen, phosphorus and potassium. If effective medium and trace nutrient elements are not supplemented in time, crop yields will likewise be affected. For example, if cotton is not given a boron fertilizer topdressing for a long time, its flowering will be affected, leading to a decline in yield; if the base of new rice leaves loses green color and fades, the whole plant is short and does not tiller, and the field grows unevenly, this may also be a symptom of zinc deficiency rather than necessarily caused by disease.