Can potassium dihydrogen phosphate be mixed with boron fertilizer and calcium fertilizer? A reasonable combination yields higher yields
Regarding the question of how to achieve scientific fertilization through fertilizer combinations, I have also talked about this many times before, but there are so many types of chemical fertilizers that it is still impossible to introduce each and every one of them in detail for everyone. However, the principles of scientific fertilization and the reasonable combined application of chemical fertilizers remain unchanged, for example, suitable acidity and alkalinity, no reduction in fertilizer efficiency when mixed, and no toxic effects when mixed. If any one of these cannot be satisfied, then they cannot be mixed and applied together.
As for the combined application of potassium dihydrogen phosphate with boron fertilizer and calcium fertilizer, Science Xingnong states here: potassium dihydrogen phosphate can be mixed with boron fertilizer, but not with calcium fertilizer. A detailed introduction follows below.
As a highly efficient fertilizer commonly used in agricultural production, potassium dihydrogen phosphate can provide sufficient nutrients for plant growth, development and reproductive growth. It is also a very common fertilizer in topdressing or foliar fertilization. Boron fertilizer plays a very key role in reproductive growth after flowering. After foliar spraying or soil root application, calcium fertilizer is absorbed through the leaves or root system, and participates in the composition of plant cell walls in the plant's cells. In the case of calcium deficiency, cell division and root growth and development are affected, and calcium is also very helpful for the absorption of potassium, nitrogen and phosphorus. When applied to grapes, for example, it can also prevent fruit cracking and extend the storage period of the fruit. It can be said that boron fertilizer and calcium fertilizer are both essential fertilizers for plants.
So do these fertilizers satisfy the above principles of fertilizer mixing when mixed? Here we need to understand the properties of these fertilizers and chemical elements. First, let us look at potassium dihydrogen phosphate. The fertilizer is weakly acidic, and after hydrolysis it dissociates into potassium ions, hydrogen ions and phosphate ions. As a mineral element, boron usually combines with oxygen to form acid radicals, such as borate radicals. Borate radicals, like phosphate radicals, are negatively charged ions, so there will be no reaction between the two, and the combination of borate radicals with hydrogen ions and potassium ions will not reduce fertilizer efficiency. Naturally, if these two fertilizers are mixed and used together, they will also produce a yield-increasing effect.
Calcium ions are different. The divalent metal ion calcium will combine with phosphate radicals to form calcium phosphate, which will form a slight precipitate. At the same time, calcium ions and potassium ions also have an antagonistic reaction during the absorption process, affecting each other's absorption and reducing fertilizer efficiency.
Seeing this, everyone must understand what is going on. In agricultural production, one must have a relatively correct understanding and knowledge of the properties of fertilizers and the chemical properties of pesticides, otherwise not only will yields not increase, but fertilizer utilization efficiency will also be reduced.
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