Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Ricardo de Maria"'
Autor:
Kayuki C. Kaizzi, Charles S. Wortmann, Ricardo de Maria, Catherine J. Senkoro, Catherine Kibunja, Athanase R. Cyamweshi, Davy Nkonde
Publikováno v:
Nutrient Cycling in Agroecosystems. 111:47-60
Bean (Phaseolus vulgaris L.) is important in sub-Saharan Africa for human dietary protein. Low yields are attributed to biotic and abiotic constraints including inadequate nutrient availability. Research was conducted to determine nutrient response f
Autor:
Martin Macharia, Maribeth Milner, Kayuki C. Kaizzi, Ricardo de Maria, Maman Nouri, Catherine J. Senkoro, Negash Demissie, Charles S. Wortmann, Korodjouma Ouattara, Patson C. Nalivata, Catherine Kibunja, Mohammed K. Dicko, Francis Marthy Tetteh, Davy Nkonde, Athanase R. Cyamweshi, Bitrus Dawi Tarfa
Publikováno v:
Nutrient Cycling in Agroecosystems. 107:175-186
The profit potential for a given investment in fertilizer use can be estimated using representative crop nutrient response functions. Where response data is scarce, determination of representative response functions can be strengthened by using resul
Autor:
G.I. Oduor, Abdillahi Alawy, Bitrus Dawi Tarfa, Ricardo de Maria, George J. Ley, Brian Gondwe, Francis Marthy Tetteh, Emmanuel Rutsimba, L.W.I. Wairegi, Demissie Negash, Dannie Romney, Catherine Kibunja, Harrison Rware, Charles Wartmann, Kayuki C. Kaizzi, Mohamed Dicko, Maman Nouri, Nabahungu N. Leon, Martin Macharia, Wilson Makumba
Publikováno v:
Agricultural Sciences. :1384-1391
Africa’s fertilizer use averages only 8 kg per hectare per year. Available fertilizer recommenda-tions in Africa are high, and vary between countries. The recommendations are generally out dated, and/or “blanket” recommendations that are not si