Soil Acidity And Bacterial Activity ..
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3. All the treatments reduced the lime requirement indicated by the Tacke method, until nitrification had taken place.
4. Lime-requirement determinations of the limed soils showed that the treated soils were always capable of reaction with more lime, though an excess of 2 tons of limestone had been applied. This shows that the soils EFFECT OF ORGANIC MATTER ON SOIL REACTION: II 153 contain acids which are very slowly reactive, and perhaps they will react with limestone beyond their neutral poin...t.
5. The residual carbonates, where blood was applied, were completely exhausted at the last sampling.
6. The hydrogen-ion determinations show that in practically every case the organic treatments reduced the true acidity. In some cases, on the contrary, both lime and organic treatments did not give as alkaline a soil as did the lime alone.
7. Changes in soil reaction especially on the blood-treated soils, follow very closely the deficit or excess of ammonia over nitric nitrogen, indicating that these processes may become factors influencing the production of acid soils.
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You can find similar books in the "Read Also" column, or choose other free books by Stephenson, Roscoe Elmo. [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
3. All the treatments reduced the lime requirement indicated by the Tacke method, until nitrification had taken place.
4. Lime-requirement determinations of the limed soils showed that the treated soils were always capable of reaction with more lime, though an excess of 2 tons of limestone had been applied. This shows that the soils EFFECT OF ORGANIC MATTER ON SOIL REACTION: II 153 contain acids which are very slowly reactive, and perhaps they will react with limestone beyond their neutral poin...t.
5. The residual carbonates, where blood was applied, were completely exhausted at the last sampling.
6. The hydrogen-ion determinations show that in practically every case the organic treatments reduced the true acidity. In some cases, on the contrary, both lime and organic treatments did not give as alkaline a soil as did the lime alone.
7. Changes in soil reaction especially on the blood-treated soils, follow very closely the deficit or excess of ammonia over nitric nitrogen, indicating that these processes may become factors influencing the production of acid soils.
What to read after Soil Acidity And Bacterial Activity ..?
You can find similar books in the "Read Also" column, or choose other free books by Stephenson, Roscoe Elmo. [from Old Catalog] to read onlineMoreLess
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