机译:OPERATIONAL CHARACTERISTICS OF FOUR METERING SYSTEMS FOR AGRICULTURAL FERTILIZERS AND AMENDMENTS
Univ Nacl Colombia, Dept Ingn Civil & Agr, Bogota, DC, Colombia;
Univ Nacl Colombia, Fac Agron, Bogota, DC, Colombia;
CORPOICA, Corp Colombiana Invest Agropecuaria, CI Tibaitata, Mosquera, Cundinamarca, Colombia;
fertilizer metering system; agricultural machinery; granular material; ORGANIC-BASED FERTILIZERS; AERODYNAMIC PROPERTIES; PHYSICAL-PROPERTIES; FLOW; FEEDERS;