Release of nitrogen and potassium from root contact packets of urea and muriate of potash and their crop responses
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Date
1992
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Department of Agronomy, College of Horticulture, Vellanikkara
Abstract
The present study 'release of nitrogen and potassium from root contact packets of urea and muriate of potash and their crop responses was conducted during June 1991 to June 1992 at the College of Horticulture, Vellanikkara. Root contact packets of varying porosities and quantities were prepared and separate experiments were conducted to study the efficiency of packets of urea and muriate of potash. A series of experiments were conducted to standardise the porosities suited to provide extended potention of the fertiliser packed in polythene packets. In studies conducted in north-east monsoon season, substantial retention of muriate of potash could be observed with porosities of one and two nuil holes cm-2 upto 90 days of application . The quantity retained was found to decrease significantly with increase in porosity.
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Citation
CoH T-623