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The reaction of ammonia with phosphoric acid results in a water-soluble ammonia salt. This can be used beneficially in the production of wine when nitrogen levels are low. Stuck fermentations are often the result of low levels of nitrogen in the must.
The reaction of ammonia with phosphoric acid results in a water-soluble ammonia salt. This can be used beneficially in the production of wine when nitrogen levels are low. Stuck fermentations are often the result of low levels of nitrogen in the must.
Since the big invention of big tractors and plows and improvements and availability of commercial fertilizers, the nutrient content of the crops being grown has actually decreased. (brix levels in corn are actually 40% lower now than they where back in the 40's.) One would think with all the tons of fertilizer being applied every year to all the farm lands that our crops would be nutrient rich. Not true, science seems to want to rely on a few nutrients, Nitrogen, Phosphate and Potassium as the main nutrient supplement for growing all crops. Things like Calcium, Sulfur and Magnesium are often overlooked. Not to mention other micro nutrients such as Iron, Nickle, Copper, Zinc, Molybinate, Manganese. I Have left out a few agriculture knows about as necessary and I am sure there are others that science hasnt figured out that are necessary also.
Also very true. However, depleted soils can be helped with additions of inorganic and organic compounds. Yes, it's true a lot of larger farming corporations have depleted soils by over-croppping and incorrect usage of fertilizers. Once a "manure" has been composted, it can make an excellent soil amendment and fertilizer. In fact, my chickens and ducks "deposit" a wonderful fertilizer (manure) on my ground daily, and my land hasn't suffered from it
Also very true. However, depleted soils can be helped with additions of inorganic and organic compounds. Yes, it's true a lot of larger farming corporations have depleted soils by over-croppping and incorrect usage of fertilizers. Once a "manure" has been composted, it can make an excellent soil amendment and fertilizer. In fact, my chickens and ducks "deposit" a wonderful fertilizer (manure) on my ground daily, and my land hasn't suffered from it

My point, is that grapes are not immune to nutrient deficiencies and neither are any of the other many fruits that are being used to produce wine. If the nutrients are not in the soil, or are deficient in the soil, the plants growing there will also be deficient. With this in mind, it only seems reasonable to assume that adding a nutrient package to our wines only makes perfect sense. With that in mind, I point out the problems encountered with the tripple super phosphate and nutrient tieup, while it might seem like a good ideal, the phosphate is only one of the necessary nutrients needed to make a good wine. Without testing of the wine must for the proper nutrient levels, adding anything is only a guess.
BUT, we are not talking about farming and crops, we are talking about wine, and the use of small amounts of nutrients added to the must. You are comparing the reaction of these nutrients on soil, to their reaction in wine. Not the same at all. For most hobbyists, the expensive lab equipment is not available, and even if it were, skill levels are usually too low to be any use.
I am not trying to persuade anyone to add DAP, or not add it to their must. I DO encourage the hobbyist to read available materials before making a choice. A person cannot make an informed decision, unless he is himself, informed.
As stated in my last post, there are some excellent books, written by professors, chemists and winemakers, which give complete explanations of the reasons to do certain things, the consequences of not doing them, and the pros and cons attached to them.
I still stand by my earlier statement - Alcohol, which is a psychoactive drug, is a far worse toxin than the minute traces of DAP that "MAY" be left in a wine after fermentation is complete.
BUT, we are not talking about farming and crops, we are talking about wine, and the use of small amounts of nutrients added to the must. You are comparing the reaction of these nutrients on soil, to their reaction in wine. Not the same at all. For most hobbyists, the expensive lab equipment is not available, and even if it were, skill levels are usually too low to be any use.
I am not trying to persuade anyone to add DAP, or not add it to their must. I DO encourage the hobbyist to read available materials before making a choice. A person cannot make an informed decision, unless he is himself, informed.
As stated in my last post, there are some excellent books, written by professors, chemists and winemakers, which give complete explanations of the reasons to do certain things, the consequences of not doing them, and the pros and cons attached to them.
I still stand by my earlier statement - Alcohol, which is a psychoactive drug, is a far worse toxin than the minute traces of DAP that "MAY" be left in a wine after fermentation is complete.