Synthetic organic nitrogeneous fertilizers are usually preferred to ammoniacal and nitrate ones in places of high rainfall to inhibit leaching losses of nitrogen. In Madras State wherever a high analysis nitrogeneous fertilizer is to be used the choice is generally for urea. But of late, urea formaldehyde a synthetic product obtained by allowing urea and formaldehyde to react in various proportions has come into use. In countries like America where it is manufactured for fertilising the land, the product contains 37 per cent nitrogen. In India, it is obtained as a bye-product in plastic industries and the product analyses to 19 per cent total nitrogen. In the present work, fertilizer uren with 46 per cent nitrogen is compared with urea formaldehyde.
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Tamil Nadu, India.
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Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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