"PH", is a numerical figure used to describe the relative acidity or alkalinity of a particular soil. A ph of 6.5-7.0 is considered "neutral" as it provides the best median for nutrient "movement" and for them to hook onto the soil particles. Any reading on a soil test that is below 6.00 is telling you you have an acid soil and it needs lime. A reading between 6.0-6.5 tells you that the soil is OK for now, but will be needing lime soon. "Units" of fertilizer refer to the actual pounds of a particular nutrient applied to a field. For example, for the most part, nitrogen for pastures is supplied (generally) with either ammonium nitrate or urea. Ammoniun nitrate typically contains 34% actual product that is utilized by the plant. In every 100 pounds of product you get 34 pounds (units)of actual nitrogen. The other 66 pounds is filler that is necessary to "carry" the actual nitrogen. If you needed 40 actual pounds (units) of nitrogen per acre and you were using ammonium nitrate, then you would put on 118 pounds of total product. (118x34%=40.12 pounds of actual nitrogen) There are other nitrogen sources so make sure you know which product you are using, as the percentage of actual nitrogen will vary.
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Today's Featured Article - A City Guy's First Tractor - by Fred Hambrecht. After living in apartments in Atlanta for more years than I care to remember, the wife and I decided to move to the country. Humming "Green Acres is the place for me..." we purchased a 29 acre tract about 60 miles south of Atlanta. Next came the house, I could talk about that ordeal for another two weeks... But, I want to talk about my tractor! We didn't even own a lawnmower, and all of a sudden we had enough grass to feed all the starving children of the bovine world. Naturally, I talked
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