Madras Agricultural Journal
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Note on the use of Ammonium Sulphate Nitrate as a Nitrogen carrier in the potato fertilizer mixture

Abstract

Potato is an exhausting crop and requires heavy doses of manures in the Nilgiris. It has been computed that an acre of good potato crop removes from the soil 47 pounds of nitrogen, 22 pounds of phosphoric acid and 77 pounds of potash. But in actual practice, a very much higher dose of these three nutrients has been found necessary in view of the peculiar soil and other natural conditions under which the crop is grown.

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