OPERATION RESEARCH IN AGRICULTURE

Precision Agriculture Research

Autonomous GPS and three differentially corrected GPS (DGPS) sources were tested under static conditions to assess suitability for precision agriculture applications in the vicinity of Hays, KS. DGPS sources included the U.S. Coast Guard Beacon, Wide Area Augmentation System (WAAS), and OmniSTAR, a commercial service. Both WAAS and OmniSTAR broadcast correction messages from geostationary satel...

Participatory Research and Extension in Agriculture

Methods and Techniques in Operation Research

In this paper, a brief summary of the heuristic methods, single-stage optimization methods, time-phased optimization methods, artificial intelligence (AI) techniques and iterative improvement methods are presented. Finally, some of the important characteristics of network programming methods and their strengths and weaknesses are identified and compared. Key-words Heuristic Methods, Single-Stag...

International Journal of Agriculture and Environmental Research

The effects of osmotic and matric water potential on mycelial growth, production and germination of conidia, and production and maturation of pseudothecia of Pyrenophora triticirepentis (PTR), the cause of tan spot of wheat, were examined on clarified V8 juice agar amended with KCl or polyethylene glycol 8000 (PEG8000). Patterns of the growth responses of three isolates to decreasing osmotic an...

International Journal of Agriculture and Environmental Research

A total of 44 mature chickens (about 50 weeks old) males and females inbred naked necked and Frizzle Feathered chickens were crossed to generate a total of 180 day-old(97 Na x Na and 83 F x F chicks) realized from main and reciprocal crossbreeding were used in the study. Mean dayold weights of the Inbreds( Main crossbreds) were 22.17g, 23.87g, 25.50g for (Na x Na), (F x F) and (Na x F) respecti...