land evaluation is the process of predicting the land use potential on the basis of its attributes. at the present study the qualitative land suitability evaluation was investigated for specific cereal crops including irrigated wheat (triticum aestivum l.), mays (zea mays l.) and cotton (gossypium herbaceum l.), based on fao land evaluation frame works (1976, 1983 and1985), climatic and soil re...

Foreign workers have been an important part of U.S. labor-intensive segments of agriculture throughout U.S. history. Typically, these are specialty crops such as tree crops, vegetables, and nursery and greenhouse crops. Each requires large amounts of labor relative to other resources used in production. Tree crop and vegetable production on only has very large labor requirements, but the requir...

Agriculture is critical for a country’s population growth and economic expansion. In Saudi Arabia (SA), agriculture relies on groundwater, seasonal water, desalinated recycled water due to lack of surface resources, dry environment, scanty rainfall. Estimating consumption plan crop requirements (CWR) in changing environments difficult micro-level data consumption, particularly agricultural syst...

BACKGROUND The study of the prehistoric origins and dispersal routes of domesticated plants is often based on the analysis of either archaeobotanical or genetic data. As more data become available, spatially explicit models of crop dispersal can be used to combine different types of evidence. METHODOLOGY/PRINCIPAL FINDINGS We present a model in which a crop disperses through a landscape that ...