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Phosphorus deficiency is the major soil fertility problem limiting forage production in many parts of Africa. The objective of this study was to screen African Trifolium species for dry matter production, nutrient use efficiency and nitrogen fixation potential at different rates of applied Twenty...


Mugwira, L.M.Haque, I.Lupwayi, N.Z.Luyindula, N.[Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers]Evaluation of phosphorus uptake and use efficiency and nitrogen fixation potential by African clovers

A four year field study was conducted in central Texas to evaluate the effects of sorghum (Sorghum bicolor L. Moench) genotype, fertilizer N application rate and stover removal on crop yields and plant nutrient uptake and partitioning. Fertilizer N application rates of 112 kg ha were generally su...


Powell, J.M.Hons, F.M.[Fertilizer nitrogen and stover removal effects on sorghum yields and nutrient uptake and partitioning]Fertilizer nitrogen and stover removal effects on sorghum yields and nutrient uptake and partitioning

Phosphorus (P) uptake by plant roots depends on P intensity (I) and P quantity (Q) in the soil. The relative importance of Q and I on P uptake is unknown for soils with large P sorption capacities because of difficulties in determining trace levels of P in the soil solution. We applied a new isot...


Pypers, PieterDelrue, JDiels, J.Smolders, EMerckx, R.[Phosphorus intensity determines short-term P uptake by pigeon pea (Cajanus cajan L.) grown in soils with differing P buffering capacity : Comparison of E- and L-values]Phosphorus intensity determines short-term P uptake by pigeon pea (Cajanus cajan L.) grown in soils with differing P buffering capacity : Comparison of E- and L-values

This paper examines the potential for phosphorus (P) release from intensively grazed pasture to waterways. In particular it describes the P release processes occurring in riparian buffer strips. Soil samples at three depths (0 2.5, 2.5 7.5, and 7.5 15 cm) were collected from riparian buffer strip...


Aye, Tin MaungNguyen, MLBolan, NSHedley, MJ[Phosphorus in soils of riparian and non-riparian wetland and buffer strips in the Waikato area, New Zealand]Phosphorus in soils of riparian and non-riparian wetland and buffer strips in the Waikato area, New Zealand

Low phosphorus availability is a primary constraint to crop production in developing countries. Adventitious roots play an important role in phosphorus acquisition, as they are localized near the soil surface where phosphorus is relatively abundant. A population of recombinant inbred lines of Pha...


Ochoa, IEBlair, Matthew W.Lynch, Jonathan P.[QTL analysis of adventitious root formation in common bean under contrasting phosphorus availability]QTL analysis of adventitious root formation in common bean under contrasting phosphorus availability

The relationship between root-hair growth, acid exudation and phosphorus (P) uptake as well as the quantitative trait loci (QTLs) associated with these traits were determined for a recombinant inbred line (RIL) population derived from the cross of two contrasting common bean (Phaseolus vulgaris L...


Yan, XLiao, HBeebe, Stephen E.Blair, Matthew W.Lynch, Jonathan P.[QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean]QTL mapping of root hair and acid exudation traits and their relationship to phosphorus uptake in common bean

Tithonia diversifolia (Mexican sunflower) is a shrub commonly used as a green manure crop in Central and South America, Asia and Africa as it accumulates high levels of phosphorus and other nutrients, even in depleted soils. In root samples collected from the global distribution of Tithonia, we e...


Sharrock, R.A.Sinclair, Fergus L.Gliddon, C.Rao, Idupulapati M.Barrios, EdmundoMustonen, P.J.Smithson, P.Jones, D.L.Godbold, D.L.[A global assessment using PCR techniques of mycorrhizal fungal populations colonising Tithonia diversifolia]A global assessment using PCR techniques of mycorrhizal fungal populations colonising Tithonia diversifolia
Phiri, S.Rao, Idupulapati M.Barrios, EdmundoSingh, B.R.[Plant growth, mycorrhizal association, nutrient uptake and phosphorus dynamics in a volcanic-ash soil in Colombia as affected by the establishment of Tithonia diversifolia]Plant growth, mycorrhizal association, nutrient uptake and phosphorus dynamics in a volcanic-ash soil in Colombia as affected by the establishment of Tithonia diversifolia
Zhiping, QiRao, Idupulapati M.Ricaurte Oyola, José JaumerAmézquita Collazos, EdgarSanz Scovino, José IgnacioKerridge, Peter C.[Root distribution and nutrient uptake in crop-forage systems on Andean hillsides]Root distribution and nutrient uptake in crop-forage systems on Andean hillsides

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