Department of Agronomy, S.V. Agricultural College, Tirupathi
A field experiment was conducted to study the influence of different forms of urea and their time of application on nutrient uptake by rainfed lowland rice in sandy loam soil during rainy season. The results revealed that nitrogen uptake was significantly higher with urea gypsum than that obtained with prilled urea, urea rockphosphate, urea supergranules and neem blended urea. Phosphorus uptake was also higher with urea gypsum than that obtained with neem blended urea and prilled urea. All the forms of urea gave higher uptake of nitrogen and phosphorus when applied in three splits compared to their application in single basal dose or in two splits.
