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| Performance of a maize/cassava intercrop in tilled and no-till Senna spectabilis alley cropping on an Ultisol in southern Cameroon, Hauser, S., Ndi, J. and Hulugalle, N., in: Agroforestry Systems, volume 49, pages 177-188, ISSN 0167-4366, 2000. |
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| Yields of maize/cassava intercrops grown with hedgerows of three multipurpose trees on an acid Ultisol of Cameroon, Hauser, S., Ndi, J. and Hulugalle, N., in: Agroforestry Systems, volume 49, pages 111-122, ISSN 0167-4366, 2000. |
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| Long-term effects of land clearing methods, tillage systemsand cropping systems on surface soil properties of a tropical Alfisol in S. W. Nigeria, Hulugalle, N., in: Soil Use and Management, volume 16, pages 25-30, 1994. |
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| Changes in soil properties of a newly-cleared Ultisol due to establishment of hedgerow species in alley cropping systems, Hulugalle, N. and Ndi, J., in: Journal of Agricultural Science, volume 122, pages 435-443, 1994. |
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| Changes in surface soil properties of a no-tilled tropical Alfisol due to intercropping maize, cassava and egusi melon, Hulugalle, N., Ezumah, H. C. and Leyman, T., in: Field Crops Research, volume 36, pages 191-200, 1994. |
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| Effects of no-tillage and alley cropping on soil properties and crop yields in a Typic Kandiudult of southern Cameroon, Hulugalle, N. and Ndi, J., in: Agroforestry Systems, volume 22, number 3, pages 207-220, 1993. |
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| Contributory factors to soil spatial variability in an Ultisol. ll. Retention of living trees in situ following land clearing, Hulugalle, N. and Ndi, J., in: Communications in Soil Science and Plant Analysis, volume 24, number 11 & 12, pages 1409-1419, 1993. |
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| Amelioration of a highly degraded tropical alfisol by planting 1. Changes in soil physical and chemical properties, Hulugalle, N., in: Land Degradation and Rahabilitation, volume 3, pages 141-152, 1992. |
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| Contributory factors to soil spatial variability in an ultisol 1. Burning vegetation residues in heaps during land clearing, Hulugalle, N., in: Communications in Soil Science and Plant Analysis, volume 23, number 15-16, pages 1859-1869, 1992. |
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| Soil constraints for sustainable upland crop production in humid and subhumid West Africa, Kang, B., Gichuru, M., Hulugalle, N. and Swift, M. J., Tropical Agriculture Research Center, 1991. |
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| Effect of cassava-based cropping systems on physicochemical properties of soil and earthworm casts in a tropical Alfisol, Hulugalle, N. and Ezumah, H. C., in: Agriculture, Ecosystems and Environment, volume 35, number 1, pages 55-63, ISSN 0167-8809, 1991. |
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| Tillage systems for the West African semi-arid tropics, Hulugalle, N. and Maurya, P. R., in: Soil and Tillage Research, volume 20, number 2-4, pages 187-199, 1991. |
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| Effect of seedbed preparation method on soil properties and crop yield in a rice fallow of southwestern Nigeria, Hulugalle, N., Palada, M. C. and Carsky, R., International Soil Tillage Research Organization, 1991. |
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| Alleviation of soil constraints to crop growth in the upland alfisols and associated soil group of the West African Sudan savannah by tied ridges, Hulugalle, N., in: Soil and Tillage Research, volume 18, pages 231-247, 1990. |
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| Effect of hedgerow species in alley cropping systems on surface soil physical properties of an Oxic Paleustalf in southwestern Nigeria, Hulugalle, N. and Kang, B., in: Journal of Agricultural Science (Cambridge, UK), volume 114, pages 301-307, 1990. |
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| Effect of rock bunds and tied ridges on soil water content and soil properties in the Sudan savannah of Burkina Faso, Hulugalle, N., De Koning, J. and Matlon, P. J., in: Tropical Agriculture, volume 67, number 2, pages 149-153, 1990. |
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| Effect of five years of no-tillage and mulch on soil properties and tuber yield of cassava on an acid Ultisol in southeastern Nigeria, Hulugalle, N., Lal, R. and Gichuru, M., in: Experimental Agriculture, volume 26, pages 235-240, ISSN 0014-4797, 1990. |
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| Effect of seedbed preparation method and mulch on soil physical properties and yield of cowpea in a rice fallow of an inland valley swamp, Hulugalle, N. and Palada, M. C., in: Soil and Tillage Research, volume 17, pages 101-113, 1990. |
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| Studies on cassava-based rotation systems in a tropical alfisol, Ezumah, H. C. and Hulugalle, N., 1989. |
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| Management of plant residue for cassava (manihot esculanta Crantz) production on an acid utisol in Sough Eastern Nigeria, Hulugalle, N., Lal, R. and Opara-Nadi, A. O., in: Field Crops Research, volume 16, pages 1-16, ISSN 0378-4290, 1987. |
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| Patterns of water uptake and root distribution of chillie peppers grown in soil columns, Hulugalle, N. and Willatt, S. T., in: Canadian Journal of Plant Science, volume 67, pages 531-535, 1987. |
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| Seasonal variation of water uptake and leaf water potential of intercropped chillies in relation to that of monocropped chillies, Hulugalle, N. and Willatt, S. T., in: Experimental Agriculture, volume 23, pages 273-282, 1987. |
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| Root growth of Soybean and cowpea on a hydromorphic toposequence in western Nigeria, Hulugalle, N. and Lal, R., in: Plant and Soil, volume 91, pages 195-208, 1986. |
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| Soil water balance of intercropped maize and cowpea in tropical hydromophic soil in western Nigeria, Hulugalle, N. and Lal, R., in: Agronomy Journal, volume 78, pages 86-90, ISSN 0002-1962, 1986. |
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| Amelioration of soil physical properties by mucuna following mechanized land clearing of a tropical rainforest, Hulugalle, N., Lal, R. and ter Kuile, C. H. H., in: Soil Science, volume 141, pages 219-224, 1986. |
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| Root growth of maize in a compacted gravelly tropical alfisol as affected by rotation with a woody perennial, Hulugalle, N. and Lal, R., in: Field Crops Research, volume 13, pages 33-44, ISSN 0378-4290, 1986. [DOI] |
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| Land clearing and soil management in the lowland humid tropics, Hulugalle, N. and Lal, R., 1984. |
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| Soil physical changes and crop root growth following different methods of land clearing in western Nigeria, Hulugalle, N., Lal, R. and ter Kuile, C. H. H., in: Soil Science, volume 138, pages 172-179, ISSN 0038-075X, 1984. |
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