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Kolawole, G.O.Tian, G.[Response of early growth and nutrient concentration of three multipurpose species to three soil types]Response of early growth and nutrient concentration of three multipurpose species to three soil types

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

A screenhouse experiment was conducted to assess the effects of seed size and phosphorus (P) fertilization on growth of 12 herbaceous and shrub legumes [Arachis hypogaea, Cajanus cajan, Centrosema pascuorum, Centrosema brasilianum, Crotolaria ochroleuca, Glycine max, Lablab purpureus, Mucuna coch...


Kolawole, G.O.Kang, B.T.[Effect of seed size and phosphorus fertilization on growth of selected legumes]Effect of seed size and phosphorus fertilization on growth of selected legumes

The potential of planted leguminous cover crop fallow as an alternative to the natural regrowth fallow for sustaining the productivity of low activity clay (LAC) soils in the tropics as the fallow period shortens was tested at Ibadan in the forest-savanna zone of southwestern Nigeria. The study, ...


Tian, G.Kolawole, G.O.Salako, F.K.Kang, B.[An improved cover cropfallow system for sustainable management of low activity clay soils of the tropics]An improved cover cropfallow system for sustainable management of low activity clay soils of the tropics

The effects of burning, incorporation and surface mulching after one year of natural regrowth (NF) and Pueraria cover crop fallows on soil P fractions and maize and cassava yields were assessed. Data were collected between 1998 and 2000 as part of an on-going long-term fallow management trial est...


Tian, G.Kolawole, G.O.Tijani-Eniola, H.[Phosphorus fractions in fallow systems of West Africa: effect of residue management]Phosphorus fractions in fallow systems of West Africa: effect of residue management

Legume cover crops are a potential means for overcoming N depletion in the derived savanna of West Africa. A 3-year trial was, therefore, conducted near Ibadan, southwestern Nigeria to measure the N contribution of 13 legume cover crops as compared to urea –N, using a N fertilizer replacement ind...


Tian, G.Kolawole, G.O.Kang, B.T.Kirchhof, G.[Nitrogen fertilizer replacement indexes of legume cover crops in the derived savanna of West Africa]Nitrogen fertilizer replacement indexes of legume cover crops in the derived savanna of West Africa

Two pot experiments were conducted, one to evaluate the levels of tolerance of fifteen cowpea [Vigna unguiculata (L.) Walp] lines to aluminum (Al) application, and the second to determine the effect of phosphorus (P) addition on the performance of Al‐tolerant lines (IT 91K‐93–10, IT 93K‐2046–1, a...


Kolawole, G.O.Tian, G.Singh, B.[Differential response of cowpea lines to aluminum and phosphorus application]Differential response of cowpea lines to aluminum and phosphorus application

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