El objetivo de la seccion de Microbiologia de suelos es maximizar los beneficios de la fijacion biologica del N en forrajes adaptados a los suelos acidos e infertiles de America Latina tropical, con prioridad en la simbiosis leguminosa/Rhizobium. La estrategia de la investigacion consiste en: 1) ...
Se describen los resultados obtenidos durante 1981 por la seccion de Fertilidad del Suelo y Nutricion de Plantas del Programa de Pastos Tropicales del CIAT, cuyo objetivo es el uso mas eficiente de los escasos insumos fertilizantes mediante el establecimiento de especies y ecotipos de pastos que ...
Advances in research of the soil and plant nutrition section of CIAT's Cassava Program in 1981 are given regarding symptoms of Ca and S deficiency, germplasm screening for adaptation to high acidity and/or low P; effect of fertilization (long-term fertility); level and time of K application; effe...
Diagnosis of soil fertility problems: Current vision The importance of a ‘correct diagnosis’ of soil fertility and other problems faced by the rice crop as the basis of a ‘correct treatment’ is reviewed and highlighted. The diagnosis of nutritional disorders of rice crops indicates that there are...
Se revisa y enfatiza la importancia de un ‘diagnóstico acertado’ como fundamento de un ‘tratamiento correcto’, tanto en la fertilidad del suelo como en otros problemas del cultivo de arroz. El diagnóstico de los desórdenes nutricionales del cultivo de arroz presenta aspectos relevantes y debilida...
Flor Montoya, Carlos A.
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[Diagnóstico de problemas de fertilidad de suelos: visión actual]
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Diagnóstico de problemas de fertilidad de suelos: visión actual
Lynam, John K.
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Ingram, Keith T.
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[The Nippon Foundation project improving the sustainability of cassava-based cropping systems in Asia: A project evaluation report]
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The Nippon Foundation project improving the sustainability of cassava-based cropping systems in Asia: A project evaluation report
Brachiaria cultivars developed by forage research programs are delivered to commercial livestock producers through the vehicle of seed. Over the past 15-20 years, a large, dynamic industry has developed in Brazil for the production of Brachiaria seed. This paper describes the history of this indu...
The production of tropical pasture species is determined by a complex of interacting factors which include the climatic variables of temperature, rainfall, and solar radiation; the soil's capacity to supply nutrients; the soil water available to the roots; and the effects of both current and prev...
Jones, Raymond J.
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[The effect of climate, soil, and grazing management on the production and persistence of tropical pasture germplasm]
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The effect of climate, soil, and grazing management on the production and persistence of tropical pasture germplasm
Chemical analysis and missing element trials with Sorghum vulgare L. showed that three Panamanian soils, representative of three great soil groups, were deficient in both nitrogen (N) and phosphorus (P). When a greenhouse trial was undertaken to test the response of Cajanus cajan to rhizobial ino...
Hernández, B.C.
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Méndez-Lay, J.M.
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Focht, D.D.
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[Nitrogen and phosphorus requirements for the growth and nodulation of Cajanus cajan in Panamanian soils]
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Nitrogen and phosphorus requirements for the growth and nodulation of Cajanus cajan in Panamanian soils
Biological factors of fertility were assessed through the study of litter quantity and quality, soil organic matter quantity and quality, soil microfauna, soil macrofauna, organic matter dynamic, particularly decomposition and non-symbiotic nitrogen fixation in an age series of Eucalyptus PF1 and...
Bernhard-Reversat, F.
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Laclau, J.P.
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Loubana, P.M.
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Loumeto, J.J.
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Mboukou, I.M.C.
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Reversat, G.
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[Changes in biological factors of fertility in managed Eucalyptus plantations on a savanna soil in Congo]
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Changes in biological factors of fertility in managed Eucalyptus plantations on a savanna soil in Congo
Cyamweshi, A.R.
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Kayumba, J.
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Nabahungu, N.L.
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[Optimizing fertilizer use within the context of integrated soil fertility management in Rwanda]
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Optimizing fertilizer use within the context of integrated soil fertility management in Rwanda