What Do Some Different Terms Mean? Essay

1288 Words Sep 15th, 2015 6 Pages
Where did phosphite come from?

During WWII, rock phosphate was used as a white phosphorus incendiary and smoke screen. The shortage of rock phosphate concerned ag-officials and they began to look for alternative sources of phosphorus fertilizers. As a result, phosphonates were first considered as fertilizers in Germany and the United States during the 1930s and '40s.
Rock phosphate is the beginning of most commercially made phosphorus products in the market today. Without the phosphate, many of our commercially available fertilizers cannot be made such as superphosphate and triple superphosphate.
• RP + sulfuric acid = superphosphate
• RP + phosphoric acid = Triple superphosphate (TSP)

What do all the different terms mean?

Phosphoric acid, phosphate, Ortho-P, P2O5 , MAP, DAP, TSP, superphosphate all refer to fertilizers with no fungicidal properties. Phosphonate, phosphorus acid, phosphonic acid, ethyl phosphonate are terms used synonymously with phosphite (aka. fungicide + fertilizers). It is important read labels for these keywords to know exactly what you are buying. Buying a phosphate fertilizer yields insignificant fungicidal activity. SO what’s the difference? Its actually pretty simple, a phosphite is just missing a 4th oxygen.
Same as nitrate vs. nitrite.

Fertilizer vs. Fungicide?

It’s all in the labeling! Labeling it as a fertilizer is a good way to avoid stringent fungicide labeling restrictions.
There are several fungicides and fertilizers that have…

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