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Moraghan, J T and Rego, T J and Buresh, R J (1984) Labeled nitrogen fertilizer research with urea in the semi-arid tropics 3. Field studies on alfisol. Plant and Soil, 82 (2). pp. 193-203.
Moraghan, J T and Rego, T J and Buresh, R J and Vlek, P L G and Burford, J R and Singh, S and Sahrawat, K L (1984) Labeled nitrogen fertilizer research with urea in the semi-arid tropics II. Field studies on a Vertisol. Plant and Soil, 80 (1). pp. 21-33.
Moraghan, J T and Rego, T J and Buresh, R J and Vlek,, P L G and Burford, J R and Singh, S and Sahrawat, K L (1984) Labeled nitrogen fertilizer research with urea in the semi-arid tropics. II. Field studies on a Vertisol. Plant and Soil, 80 (1). pp. 21-33. ISSN 0032-079X
Moraghan, J T and Rego, T J and Buresh, R J and Vlek,, P L G and Burford, J R and Singh, S and Sahrawat, K L (1984) Labeled nitrogen fertilizer research with urea in the semi-arid tropics. II. Field studies on a Vertisol. Plant and Soil, 80 (1). pp. 21-33. ISSN 0032-079X