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Location
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Monday, June 29, 2009
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aami
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Finland
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Entry 90 of 132 |
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Fresh manure has ammoniumnitrates, which oxidizes to nitrates. If manure is spreaded on surface of soil it reacts with air so that ammoniumnitrates transforms to ammoniacgases. That's why if use manure, it is recommended here to cover with some other layer of dirt, or tilled deep into the ground. At the same time you should not spread fresh manure and lime, but if you do it at different times, it should not do any harm. (Anyhow it is recommended to use composted manure, so there is no problems with any bacteria or with ammoniacgases.) When ammoniumnitrates are turning that kind of nitrates that plants use, they create acids, that makes soil sour, pH goes down. One kilo ammoniumnitrate needs two kilos lime to neutralise the acidification of soil. Also when plants are taking fertz from soil, they changes hydrogen ions to nutrient-cations, then the amount of hydrogen-ions in soil rises, and pH goes down. If you want to prevent that, you need to add lime at time to time.
Here are different kinds of lime to use in garden. "Dolomite" and "kalsiitti" and limestonepowder including magnesium. Dolomite has more than 7% Mg in it and kalsiitti has less than 2% Mg. If the amount of Mg is between 2 and 7% it is called limestonepowder that includes magnesium. Dolomite takes the longest time before it affects (best affect after 2 years) in soil, but the effect is also prolonged than kalsiitti. Kalsiitti affects fast, but it won't last until 2 years. Dolomitelimeparticles are also bigger than in those other limes. The smaller particles the lime is, the faster is the affect.
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