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Displaying 1989 - 1995 items out of 1997 results
Journal Article
June 15, 1992

A field experiment in Syria in 1986-1991 tested the efficacy of six four-year crop rotations for the control of Heterodera ciceri on chickpea and grasspea. Crop sequences included cultivation of non-host crops (barley and wheat) for 0, 1, 2 or 3...

Report
January 01, 1992

A large expanse of the WANA region, about 375 million hectares or 22% of the total area, is steppe. This zone, where annual rainfall is less than 200 mm, has traditionally been used for communal grazing of small ruminants and only rarely supports...