Resultados de la búsqueda
Mostrando ítems 1 a 9 de 410.-
Library ResourceArtículos de revistas y librosDiciembre, 1997Brasil, América central, América del Sur
-
Library ResourceArtículos de revistas y librosDiciembre, 2018Colombia, América central, América del Sur
-
Library ResourceArtículos de revistas y librosDiciembre, 1985Colombia, América central, América del Sur
The factors influencing the size and shape of exptl. field plots (area of exptl. lot, soil types, trial objective, no. of replicates, and degree of accuracy and homogeneity of the exptl. material) for the execution of field expt. are discussed. The basic principles of the following different methods to determine plot size are described: max. curve method, method of Koch and Rigney, Hatheway's method, and the max. curve method using the multiple linear regression model. Some considerations are presented on the border effect and on plot size in bush and climbing bean trials.
-
Library ResourceArtículos de revistas y librosDiciembre, 1994Colombia, América central, América del Sur
-
Library ResourceArtículos de revistas y librosDiciembre, 2017América central, América del Sur
-
Library ResourceArtículos de revistas y librosDiciembre, 2010Colombia, América central, América del Sur
Soil management in the Altillanura of Colombia’s Eastern Plains The strategies used for adequate soil management for the Altillanura (high plains with flat topography) of Colombia’s Eastern Plains are reviewed to establish modern, efficient, and sustainable livestock systems in this region. Advances in technology development within the technical and scientific cooperation agreement signed between Colombia’s Ministry of Agriculture and Rural Development (MADR) and CIAT, as well as those of the Center’s Soils Project and several national institutions co-partners in the agreement.
-
Library ResourceInformes e investigacionesDiciembre, 2015América central, Caribe, América del Sur
-
Library ResourceArtículos de revistas y librosDiciembre, 1979Colombia, América central, América del Sur
Some cultural control measures of weeds in cassava are discussed: quality of the material, planting system and density, density x plant type interaction and use of mulching. In order to study the interaction plant type x planting density, var. M Mex 59 (vigorous) and M Col 22 (nonvigorous) were planted in plots of 7500 and 15,000 plants/ha; and 3 levels of weed control were established: complete, intermediate and no control. The vigorous var.
-
Library ResourceArtículos de revistas y librosDiciembre, 1979Colombia, América central, América del Sur
Multiple cropping, sequential cropping, intercropping, mixed intercropping, intercropping in rows, in strips, relayed intercropping, cropping patterns, monoculture, crop rotation and land equivalent ratio are defined. The characteristics of multiple cropping and intercropping with beans are discussed; for the latter problems of competence are discussed (light, CO2, water and nutrients). Some cultural practices are recommended for cassava/bean intercropping: soil and fertilization type, water availability, propagation material, and weed, pest and disease control.
-
Library ResourceArtículos de revistas y librosAbril, 2018Colombia, América central, América del Sur
Búsqueda en la Biblioteca de Tierras
A través de nuestro sólido motor de búsqueda, puede explorar cualquier elemento de los más de 64.800 recursos rigurosamente seleccionados en la Biblioteca de la Tierra. Si desea obtener una visión general de lo que es posible, siéntase libre de examinar la Guía de búsqueda.