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Working Paper 2018-10-31

Autor: Stirling, Clare M.

This report provides an overview of the United Nations Framework Convention on Climate Change (UNFCCC) reporting process for national greenhouse gas (GHG) inventories with particular focus on the methodology used for estimating direct nitrous oxide (N2O) emissions from mineral fertiliser. Example...

Enlace original: https://cgspace.cgiar.org/handle/10568/97866

Investigación en Agricultura
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Stirling, Clare M. ,  [Accounting for mitigation of N-fertiliser emissions at national and project scales] ,  Accounting for mitigation of N-fertiliser emissions at national and project scales
Working Paper 2018-10

Autor: Kihara, Job Bolo, Peter Omondi Ayaga, George Mukulama, John Margenot, Andrew J. Sommer, Rolf

The provision of food requirements for current and future generations can be guaranteed through agricultural intensification options that safeguard the production resource base. Over the years, the debate on sustainable agricultural intensification has not been matched with due regard to how the ...

Enlace original: https://cgspace.cgiar.org/handle/10568/97847

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Kihara, Job ,  Bolo, Peter Omondi ,  Ayaga, George ,  Mukulama, John ,  Margenot, Andrew J. ,  Sommer, Rolf ,  [Agronomic management controls microbial populations in soils of western Kenya] ,  Agronomic management controls microbial populations in soils of western Kenya
Book Chapter 1983

Autor: Díaz, R.O. Howeler, Reinhardt H. Cadavid, L.F.

In May 1980 the soil section of CIAT's cassava program established a fertilization trial with 3 cassava var. [Barranquena (regional), M Col 113, and CMC 921 to measure its effect on yield and establish optimum levels from an economical point of view. The trial took place in Mondomito and Agua Bla...

En mayo de 1980 en la seccion de suelos del programa de yuca del CIAT se establecio un ensayo de fertilizacion con 3 var. de yuca (Barranquena (regional), M Col 113 y CMC 92) para medir su efecto en el rendimiento y establecer los niveles optimos desde el punto de vista economico. El ensayo se lo...

Enlace original: https://cgspace.cgiar.org/handle/10568/81749

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Díaz, R.O. ,  Howeler, Reinhardt H. ,  Cadavid, L.F. ,  [Anilisis economico de un ensayo de fertilizacion en yuca] ,  Anilisis economico de un ensayo de fertilizacion en yuca
Journal Article 1997

Autor: Buresh, R.J. Tian, G.

Trees can influence both the supply and availability of nutrients in the soil. Trees increase the supply of nutrients within the rooting zone of crops through (1) input of N by biological N2 fixation, (2) retrieval of nutrients from below the rooting zone of crops and (3) reduction in nutrient lo...

Enlace original: https://cgspace.cgiar.org/handle/10568/98660

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Buresh, R.J. ,  Tian, G. ,  [Soil improvement by trees in sub-Saharan Africa] ,  Soil improvement by trees in sub-Saharan Africa
Journal Article 1997

Autor: Kim, S.K. Adetimirin, V.O. Akintunde, A.Y.

phytoparasite, Striga hermonthica (Del.) Benth., infests millions of hectares of cultivated fields of cereal crops in sub-Saharan Africa. Yield losses are often 70 but can be as high as 100% and farmers often abandon infested fields and move to new areas. The objectives of this study were to inve...

Enlace original: https://cgspace.cgiar.org/handle/10568/98687

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Kim, S.K. ,  Adetimirin, V.O. ,  Akintunde, A.Y. ,  [Nitrogen effects on Striga hermonthica infestation, grain yield and agronomic traits of tolerant and susceptible maize hybrids] ,  Nitrogen effects on Striga hermonthica infestation, grain yield and agronomic traits of tolerant and susceptible maize hybrids
Journal Article 2018

Autor: Gitari, H.I. Karanja, N. Gachene, C.K.K. Kamau, S. Sharma, K. Schulte-Geldermann, Elmar

Competition for nitrogen (N) and phosphorous (P) under potato-based intercropping systems decreases the level of nutrients available for potato and subsequently influences nitrogen and phosphorous use efficiency. A field trial was conducted for four consecutive seasons between 2014 short rains an...

Enlace original: https://cgspace.cgiar.org/handle/10568/92016

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Gitari, H.I. ,  Karanja, N. ,  Gachene, C.K.K. ,  Kamau, S. ,  Sharma, K. ,  Schulte-Geldermann, Elmar ,  [Nitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems] ,  Nitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems
Book Chapter 1981

Autor: International Center for Tropical Agriculture

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/81626

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International Center for Tropical Agriculture ,  [Suelos y nutricion de la planta] ,  Suelos y nutricion de la planta
Book Chapter 1981

Autor: International Center for Tropical Agriculture

During 1981 the physiology section of CIAT's Cassava Program emphasized the understanding of factors that contribute to yield under stress conditions. Regarding photoperiodic effects, long days (16 h daylength) decreased HI and root yield while increasing total DM and the no. of apices/plant in c...

Enlace original: https://cgspace.cgiar.org/handle/10568/81625

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International Center for Tropical Agriculture ,  [Fisiologia] ,  Fisiologia
Conference Paper 1997

Autor: Oikeh, S.O. Kling, J.G. Horst, Walter J. Chude, V.O.

Two field experiments were conducted during the 1993 and 1994 growing seasons at Samaru (7° 38' E; 11° 11' N), northern Nigeria, to evaluate N-use efficiency (kg grain per kg available soil N) and yield of 5 maize genotypes planted early in the season under five levels of N. The hybrid (8644-27) ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98819

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Oikeh, S.O. ,  Kling, J.G. ,  Horst, Walter J. ,  Chude, V.O. ,  [Yield and Nuse efficiency of five tropical maize genotypes under different N levels in the moist savanna of Nigeria] ,  Yield and Nuse efficiency of five tropical maize genotypes under different N levels in the moist savanna of Nigeria

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