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Awadhwal, N K and Smith, G D (1990) Performance of low-draft tillage implements on a hard setting Alfisol of the SAT in India. Soil Use and Management, 6 (1). pp. 28-31. ISSN 1475-2743
Eswaran, H and Virmani, S M (1990) The Soil Component In Sustainable Agriculture. In: Proceedings of the First International Synlposium on Natural Resources Management for a Sustainable Agriculture, February 6-10, 1990, New Delhi, India.
Hoogmoed, W B and Klaij, M C (1990) Soil management for crop production in the West African Sahel. I. Soil and climate parameters. Soil & Tillage Research, 16 (1-2). pp. 85-103. ISSN 0167-1987
Laryea, K B and Monteith, J L and Smith, G D (1990) Modelling Soil Physical Processes and Crop Growth in the Semi-Arid Tropics. In: International Symposium on Applied Soil Physics in Stress Environments, 22-26 Jan 1989, Islamabad (Pakistan).
Mayande, V M and Bansal, R K and Smith, G D (1990) A comparison of moldboard plows for dry season tillage of vertisols. Soil & Tillage Research, 15 (4). pp. 349-358. ISSN 0167-1987
Shailaja, S and Sahrawat, K L (1990) Adsorption and desorption of phosphate in some semi-arid tropical indian vertisols. Fertilizer Research, 23 (2). pp. 87-96. ISSN 0167-1731
Sharma, K K and Bhojwani, S S and Thorpe, T A (1990) Factors affecting high frequency differentiation of shoots and roots from cotyledon explants of Brassica juncea (L.) czern. Plant Science, 66 (2). pp. 247-253. ISSN 0168-9452
Singh, S K and Nene, Y L and Reddy, M V (1990) Influence of Cropping Systems on Macrophomina phaseolina Populations in Soil. Plant Disease, 74 (10). pp. 812-814. ISSN 0191-2917
Wallace, J S and Gash, J H C and Sivakumar, M V K (1990) Preliminary measurements of net radiation and evaporation over bare soil and fallow bushland in the Sahel. International Journal of Climatology, 10 (2). pp. 203-210. ISSN 1097-0088