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Results of longterm fertility trials have been useful in identifying long-term nutrient needs and problems arising with continuous and intensive cropping on Alfisols. Available data have shown that high and sustained crop yields can be obtained with judicious and balanced NPK fertilization, combi...


Kang, B.T.Balasubramanian, V.[Longtern fertilizer trials on alfisols in West Africa]Longtern fertilizer trials on alfisols in West Africa

A longterm alley cropping trial was undertaken on an eroded Oxic paleustalf in the forest-savanna transition zone of southwestern Nigeria from 1981–1993. Two nitrogen fixing hedgerow species (Gliricidia sepium and Leucaena leucocephala) and two non legume hedgerow species (Alchornea cordifolia an...


Kang, B.T.Caveness, F.E.Tian, G.Kolawole, G.O.[Longterm alley cropping with four hedgerow species on an Alfisol in southwestern Nigeria effect on crop performance, soil chemical properties and nematode population]Longterm alley cropping with four hedgerow species on an Alfisol in southwestern Nigeria effect on crop performance, soil chemical properties and nematode population

Phosphorus plays an important role for food crop production in the forest zone of tropical Africa but very little information is available on the phosphate requirement for maize production there. Field trials were, therefore, conducted with maize (Zea mays L.) at two locations on Alfisols in sout...


Kang, B.T.Osiname, O. A.[Phosphorus response of maize grown on alfisols of southern Nigeria]Phosphorus response of maize grown on alfisols of southern Nigeria

The initial effectiveness of two rock phosphate samples from Morocco (MRP) and North Carolina (NCRP) was compared with concentrated superhposphate (CSP) in greenhouse using two Alfisols and one Ultisol from southern Nigeria. Under similar pH condition (pH 6), the two rock phosphates were more ef...


Juo, A.S.R.Kang, B.T.[Availability and transformation of rock phosphates in three forest soils from southern Nigeria]Availability and transformation of rock phosphates in three forest soils from southern Nigeria

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