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Burford, J R and Sahrawat, K L (1988) Nitrogen Availability in SAT Soils: Environmental Effects on Soil Processes. In: Colloquium on Soil Fertility and Fertilizer Management in Semiarid Tropical India, 10-11 October, 1988, Patancheru, Hyderabad, India.
Hoogmoed, W B and Klaij, M C (1988) Tillage and Planting Strategies for Sandy Soils in Niger, West Africa. In: Proceedings of the International Conference on Dryland Farming, August 15-19, 1988, Amarillo/Bushland, Texas U. S.A..
Sahrawat, K L (1988) Use of 15N in Nitrification Inhibitor Studies with Special Reference to Indigenous Materials. Journal of Nuclear Agriculture and Biology, 17. pp. 238-242. ISSN 0379-5489
Tandon, H L S and Rego, T J (1988) Management of Fertilizer Nutrients Other Than Nitrogen in the Semiarid Tropics of India. In: Colloquium on Soil Fertility and Fertilizer Management in Semiarid Tropical India, 10-11 October, 1988, Patancheru, Hyderabad, India.