paper view

Quick Search

Cover page & Issue

Quick Search

Cover Page (Vol 12, Issue 3)

download Cover Page
download full issue
COATED UREA AND UREA GRANULES AS AFFECTING TOTAL BIOLOGICAL YIELD, NUTRIENT UPTAKE AND GRAIN QUALITY OF LOWLAND RICE (Oryza sativa L
Rajani, Avijit Sen, Surajyoti Pradhan and Shiv Bahadur
Agricultural Science
Abstract

The application of urea fertilizer is always associatedwith heavy loss of N therefore, improving its efficiency is important to minimize economic and environmental losses associated with its application.Controlled Released Fertilizers are an important alternative for rice growers for improving nitrogen use efficiency (NUE) and minimizing higher and frequent application cost of urea. . The pot experiment was conducted during the kharif season (2014-15) at Agriculture Research Farm of Banaras Hindu University, Varanasi, to determine grain quality, nutrient uptake and dry matter yield of rice cultivar (NDR-97) receiving coated urea compared with Urea Super granules applied at a week after transplanting. The experiment consists five treatments including different coated ureas: Polymer coated (double layer), Polymer coated (single layer), Sulfur coated urea, Neem coated urea and Urea Supergranules at 100% recommended dose were laid out in a Randomized Complete Block Design with 4 replications. The result showed thatcoated urea improved total biological yieldby 32% hill-1, grain protein percentage upto 4.90% and enhanced Nutrient uptake from 30-47% over Urea Supergranules. It may be concluded that the Controlled Released Urea Fertilizers (CRFs) were superior over Urea Supergranules.