Irrigated Winter Barley Response to Seeding Rates and Weed Control Methods under Mediterranean Environments

M. A. TURK and A. M. TAWAHA
Jordan University of Science and Technology (JUST), Department of Crop Production, Irbid, Jordan

Abstract

TURK, M. A. and A. M. TAWAHA, 2002. Irrigated winter barley response to seeding rates and weed control methods under Mediterranean environments. Bulg. J. Agric. Sci., 8: 175–180

Field experiments were conducted during the two growing seasons of 1999/2000 and 2000/ 2001 in northern Jordan to detect the influence of varying seeding rates and weed control methods on yield, yield components, and phenological traits of irrigated winter barley. The highest yields were generally achieved with the highest seeding rates and hand weeding treatment. The lowest yields generally achieved with the lowest seeding rates and 2, 4-D application at stage 43 (mid boot stage, flag leaf sheath just visible swollen). Higher rather than lower seeding rates are recommended because they allow for greater crop competition against weeds. Hand weeding, which is practiced by traditional farmers, proved to be superior when compared to 2,4-D, irrespective to stage of application.

Key words: Six row barley – Hordeum vulgare L. – cereal – semi-arid – 2,4-D – seeding rates – weed control – hand weeding – BBCH