Refinar búsqueda
Resultados 1821-1830 de 2,189
[The institutional of the agricultural sciences in Mexico and the university alternative] | La institucionalizacion de las ciencias de la agricultura en Mexico y la alternativa universitaria
1997
Arellano Hernandez, Antonio
[Evaluation of farmer milk production. Case of two communities of Toluca Valley, Mexico State] | Caracterizacion y evaluacion de los sistemas campesinos de produccion de leche. El caso de dos comunidades del Valle de Toluca
1997
Castelan Ortega, Octavio Alonso | Mathewman, Richard W. | Fawcett, Roy | Smith, Anthony | Gonzalez Martinez, Eloy | Burgos Garcia, Ramon | Cruz Juarez, Daniel de la
[Methodological approaches in studing sociodemographic change in rural societies] | Enfoques metodologicos alternativos para el estudio del cambio sociodemografico en las sociedades rurales
1997
Gutierrez Sanchez, Sergio
[The soils in San Felipe del Progreso, Mexico State] | Los suelos del municipio de San Felipe del Progreso, Estado de Mexico
1997
Reyes Reyes, B. Gabriel
[Development theories. An approach and a proposal from the Latin American perspective] | Teorias del desarrollo. Un enfoque y una propuesta desde la perspectiva latinoamericana
1997
Liendo Vera, Isidoro
Technology assessment and transfer: an Australian perspective
1994
Williams, M. | Munro, R. (Department of Primary Industries and Energy, Canberra (Australia). Bureau of Resource Sciences)
Indicators for sustainable agriculture in the Asia-Pacific region
1994
Hamblin, A. (Cooperative Research Centre for Soil and Land Management, Glend Osmond (Australia))
Procedures for participatory research with multipurpose forages in Central American hillsides Texto completo
2003
Hoek, Rein van der | Peters, Michael | Hoffmann, Vivian
Productivity benchmarks for community-based genetic improvement of Abergelle, Central Highland and Woyto-Guji indigenous goat breeds in Ethiopia Texto completo
2019
Jembere, Temergen | Haile, Aynalem | Dessie, Tadelle | Kebede, Kefelegn | Okeyo Mwai, Ally | Rischkowsky, Barbara A.
Changes of biology of the potato late blight pathogen Phytophthora infestans in last years. Review
2002
Bimsteine, G. (Latvia Univ. of Agriculture, Jelgava (Latvia))
Potato is the second important crop in Latvia. The area covered with potato is about 50 thousand hectares. Potato late blight caused by Phytophthora infestans (Mont.) de Bary is the most serious potato disease. Weather conditions in Latvia are very favourable for the development of potato late blight and it is occuring almost every year. The biology of P.infestans was the subject of a number of authors - plant pathologists. Research results about P.infestans population biology and epidemiology are presented in this review, especially focusing on the changes of pathogen biology.
Mostrar más [+] Menos [-]