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Phosphorus (P) is an essential element and its efficient use is of global importance. This study evaluated the effect of growing potato under legume intercrops on P uptake and use efficiency indices: P harvest index (PHI), P uptake efficiency (PuPE), P partial factor productivity (PPFP) and P par...


Gitari, H.I.Nyawade, S.Kamau, S.Karanja, N.N.Gachene, C.K.K.Schulte-Geldermann, Elmar[Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops.]Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops.

Phosphate rock (PR) is an alternative fertilizer to increase the P content of P-deficient weathered soils. We evaluated the effects of fertilizer form on indicators of biological cycling of P using an on-farm trial on a Rhodic Kandiudox in western Kenya. Treatment plots were sampled after 13 crop...


Margenot, Andrew J.Sommer, RolfMukalama, JohnParikh, Sanjai J.[Biological P cycling is influenced by the form of P fertilizer in an Oxisol]Biological P cycling is influenced by the form of P fertilizer in an Oxisol

Current patterns of agricultural expansion and intensification are bringing unprecedented environmental externalities, including impacts on water quality. While water pollution is slowly starting to receive the attention it deserves, the contribution of agriculture to this problem has not yet rec...


Mateo-Sagasta, JavierZadeh, S.M.Turral, H.[More people, more food, worse water?: a global review of water pollution from agriculture]More people, more food, worse water?: a global review of water pollution from agriculture

BACKGROUND Plants depend on their root systems to acquire the water and nutrients necessary for their survival in nature, and for their yield and nutritional quality in agriculture. Root systems are complex and a variety of root phenes have been identified as contributors to adaptation to soils w...


Rao, Idupulapati M.Miles, John W.Beebe, Stephen E.Horst, Walter J.[Root adaptations to soils with low fertility and aluminium toxicity]Root adaptations to soils with low fertility and aluminium toxicity

Díaz, Lucy MilenaRicaurte Oyola, José JaumerCajiao V., César HernandoGaleano, Carlos H.Rao, Idupulapati M.Beebe, Stephen E.Raatz, Bodo[Phenotypic evaluation and QTL analysis of yield and symbiotic nitrogen fixation in a common bean population grown with two levels of phosphorus supply]Phenotypic evaluation and QTL analysis of yield and symbiotic nitrogen fixation in a common bean population grown with two levels of phosphorus supply
Fonte, Steven J.Nesper, MaikeHegglin, DjangoVelásquez, Jaime E.Ramírez, BerthaRao, Idupulapati M.Bernasconi, Stefano M.Bünemann, Else K.Frossard, EmmanuelOberson, Astrid[Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil organic matter in highly weathered tropical soils]Pasture degradation impacts soil phosphorus storage via changes to aggregate-associated soil organic matter in highly weathered tropical soils

In African agriculture, availability of nutrients for crop production can be increased using external inputs such as mineral fertiliser. However, for many African farmers the large scale use of external inputs will remain beyond reach for the foreseeable future. There is, therefore, also a need f...


Brouwer, J.Powell, J.M.[Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure]Increasing nutrient use efficiency in West-African agriculture: The impact of micro-topography on nutrient leaching from cattle and sheep manure

Determines the microbiological and chemical composition of Ititu, a concentrated fermented milk utilized by pastoralists in Southern Ethiopia, using 20 Ititu samples randomly collected from individual households from Borana region and transported under refrigeration for analysis; chemical and mic...


Kassaye, T.Simpson, B.K.Smith, J.P.O'Connor, C.B.[Chemical and microbiological characteristics of Ititu]Chemical and microbiological characteristics of Ititu

Phosphorus (P) is required to improve soil fertility for food and feed produciton in sub-Saharan Africa, but the high cost of conventional, water-soluble P fertilizers limits their use by resource-poor farmers. Rockphosphates are a low-cost alternative. The effectiveness, in terms of seed product...


Haque, I.Lupwayi, N.Z.Ssali, H.[Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production]Agronomic evaluation of unacidulated and partially acidulated Chilembwe rockphosphates for clover seed production

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