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Phosphate ammonium. What parameters should you pay attention to whenbuying?

Fosforan amonu. Na jakie parametry zwrócić uwagę przy zakupie?

Both nitrogen, as and phosphorus, are among macronutrients, and therefore food components supplied to plants in large amounts. In preplant fertilization, alternatively for fertilizers NPK, the use is common ammonium phosphate, a actually different ammonium phosphates, because under the common name are hidden in reality fertilizers of different composition. What is interesting, is one of the longest available on the Polish market types of mineral fertilizers, because in GUS data the prices of ammonium phosphate started being published already in 1972 .

The form of nitrogen in phosphate ammonium

Not from now is known, that the form in which we provide plants with nutrients is important. For example, this place we have described this on example of nitrogen in saletra ammonium and saletrzak. If we already have on nitrogen, in

phosphate ammonium, as its name indicates, it occurs in ammonium form.

Saletrosan, saletra or

urea? Each form of nitrogen works at different time

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Saletrosan,

saletra or urea? Each form of nitrogen acts at different time

Azot this is taken by plants slowly, but for this its supplies can stay longer in soil. It is used primarily to build amino acids, from which form proteins, and also stimulates phosphorus uptake, sulfur or boron and stimulates the development of the root system and natural resistance of plants. The uptake of this form of nitrogen is favored by appropriate moisture soil.

Phosphorus in phosphate ammonium

Phosphorus is responsible in plants among other for the development of the root system and stimulation of the node, a also increases resistance to drought, frost or disease. Enter in composition of organic compounds regulating the process of photosynthesis and influences the transport of mineral components through cellular membranes.

Although doses of phosphorus fertilization are dosed in kilograms of P2O5, plants similarly as for other elements, do not take the oxide form,a anions. If it is about phosphorus,

it will be HPO4(2-) or HPO4-. Both forms are well soluble in water and easily absorbable

in a lightly acidified environment by also supplied in phosphate ammonium cation ammonium NH4+.

Saltpeter and salts. What are from their self differences?

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Saletra and saletrack. What does they differ from?

What important, this effect of acidification has positive effects only for a short time. The optimum reaction for phosphorus absorption is pH 6-7, a with long-term acidification this element will substitute to unabsorbable phosphate iron and aluminum, becoming useless. From this also because in practice the use of phosphorus from mineral fertilizers is usually 30-35 proc.

Phosphates DAP and MAP

Phosphate ammonium from chemical viewpoint is the salt ammonium acid orthophosphorus. It is worth while to know, that

there are such salts differentiated in several ways. Naturally there is only one of these – tri ammonium –

however it is unstable and is releasing ammonia, converting into diammonium hydrogen phosphate, which has applications in

widespread in chemical industry.

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From the agricultural point of view we are interested in other sole ammonium acid orthophosphorus – mono- and diammonium. The monoamine salt is ammonium phosphate MAP, a diammonium – DAP. What is the difference? Leaving aside already the language chemical and focusing on practical aspects in agriculture, the fertilizers that differ in composition, a more specifically the proportion between nitrogen and phosphorus. Standard composition of fertilizer DAP is NP 18:46, a for MAP – NP. 12:52.

.

Polyphosphate ammonium

Another issue is the little popular in Polyphosphate ammonium, a actually its solution,

known as APP. In 100 kg of nitrogen there are 10 kg of nitrogen and 34 kg of phosphorus

or 11 kg of nitrogen and 37 kg of phosphorus. It is worth stressing, that “poly” in the name means,

that we are dealing with a polymeric structure, meant to increase the availability of phosphorus to plants.

Proposed KE ws. target on fertilizers from East. Group Azotas comments

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Proposal KE ws. objective for fertilizers from the East. Group Azota comments

What importantly, is not a solution of any granular phosphate ammonium, a completelydifferentproduct,aliquidformingfromconcentratedphosphoric acidandammonia.Phosphorusisinitavailableintheformpolyphosphateandorthophosphate.Applicationisperformed,similarasinwithRSMusingasprayerandwhichisimportant,bothfertilizersmaybemixedwiththethatAPPisrecommendedtopourintothesprayerasfirst.

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