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Cromme, N.Prakash, A.B.Lutaladio, N.Ezeta, F.[Strengthening potato value chains: Technical and policy options for developing countries.]Strengthening potato value chains: Technical and policy options for developing countries.

Recommendations are given on the var. and cultural practices used in cassava cultivation in the Colombian Llanos Orientales. Initially, soil acidity and low fertility were believed to be the major constraints; however, trials have indicated that diseases (bacterioses, superelongation, and anthrac...


Howeler, Reinhardt H.Ballesteros, D[El cultivo de la yuca en los Llanos Orientales de Colombia: Variedades y practicas agronomicas]El cultivo de la yuca en los Llanos Orientales de Colombia: Variedades y practicas agronomicas

The principal aspects that should be considered when constructing the min. infrastructure necessary for a cassava plant with a 500 m(2) drying surface and a capacity to dry 6 t/wk. are described in detail, in addition to the equipment (scales, chipper, and motor), and implements and tools (wheelb...


Ospina Patiño, BernardoBest, R.[Manual for the construction and operation of a natural cassava drying plant]Manual for the construction and operation of a natural cassava drying plant
Autor: Akem, C.

More than 100 pathogens attack soybean, but only a third of them are of economic importance. Common yield reductions vary between 10% and 30%. Soybean diseases are caused by viruses, bacteria, fungi, and nematodes. Disease management is based on several control principles that should be preferabl...


Akem, C.[Soybean diseases: biology, identification, control and management: IITA research guide, No. 40]Soybean diseases: biology, identification, control and management: IITA research guide, No. 40

A survey was made of weed species, weed densities and common weeding practices on 3 visits during the growing season to some 300 farms in 5 cassava-growing regions of Colombia. Broadleaf weeds were the commonest in all regions (62-65 percent of the species); there was a shift to slightly more gra...


Díaz, R.O.Pinstrup-Andersen, PerDoll, J.[Las malezas y su control en el cultivo de la yuca en Colombia]Las malezas y su control en el cultivo de la yuca en Colombia
Aycardi B., Eduardo R.Morales, Gustavo A.[Un modelo epidemiológico para fiebre aftosa endémica en áreas tropicales]Un modelo epidemiológico para fiebre aftosa endémica en áreas tropicales

Mukhebi, A.W.Morzaria, S.P.Perry, Brian D.[Economics of an East Coast Fever immunization trial at the Kenya coast]Economics of an East Coast Fever immunization trial at the Kenya coast

The supply, availability, and characteristics of cultivated land, cropping systems, yields, socioeconomic profile of producers, production vol., costs, and constraints, and the marketing of root and tuber crops in the Bahamas are analyzed. The internal and external demand of fresh products and th...

Se analizan la oferta, la disponibilidad y las caracteristicas de la tierra sembrada, los sistemas de cultivo, los rendimientos, el perfil socioeconomico de los productores, el vol., costos y limitaciones de la produccion, y el mercadeo de los productos de los cultivos de raices y tuberculos en l...


Smith, Leon S.Swann, GhalyRichardson, Kenneth[Root and tuber crops in the Bahamas]Root and tuber crops in the Bahamas

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