Search results | Land Portal

Search results

Showing items 1 through 9 of 259.
  1. Library Resource
    Conference Papers & Reports
    December, 1995
    Colombia, South America, Central America

    Since 1987 cassava agronomy research has been conducted by scientists from national cassava programs in Asia in collaboration and with small financial assistance from the CIAT cassava program. This paper summarizes and pulls together the results obtained, mainly corresponding to the period of 1490 to 1993.

  2. Library Resource
    Reports & Research
    December, 1995
    Colombia, Central America, South America

    This project was set up to investigate the level of accuracy which can be expected for slope and altitude values derived from low-cost Digital Elevation Models (DEMs). Eight gridded DEMs were generated from digitized contour maps at a range of scales:1:10,000 1:25,000 1:100,000 1:200,000 - and using a range of contour intervals 25m, 50m and 100m. A Control DEM was then produced using large scale aerial photographs (1:28,000) which were registered for auto-extraction of z-values using Helava software and accuracy tested using 91 differentially measured GPS ground control points.

  3. Library Resource
    Journal Articles & Books
    December, 1983
    Colombia, Central America, South America

    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 Blanca, municipality of Santander de Quilichao, Cauca (Colombia). Twelve levels of NPK (0-0- 0; 0-100-100; 50-100-100; 100-100-100; 200-100-100; 100-0-100; 100- 50-100; 100-200-100; 100-100-0; 100-100-50; 100-100-200; 200-200- 200) were applied.

Land Library Search

Through our robust search engine, you can search for any item of the over 64,800 highly curated resources in the Land Library. 

If you would like to find an overview of what is possible, feel free to peruse the Search Guide


Share this page