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Row spacing and seeding rate effects in wheat and barley under a conventional fallow management system
Author(s) -
G. P. Lafond,
D. A. Derksen
Publication year - 1996
Publication title -
canadian journal of plant science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.338
H-Index - 59
eISSN - 1918-1833
pISSN - 0008-4220
DOI - 10.4141/cjps96-132
Subject(s) - seeding , agronomy , hordeum vulgare , tillage , yield (engineering) , mathematics , cropping system , grain yield , poaceae , biology , crop , materials science , metallurgy
Varying seed row spacing had no effect on the yield of spring wheat (Triticum aestivum L.) or barley (Hordeum vulgare L.) when grown under a conventional-tillage fallow-management system. Grain yields were improved with increased seeding rates by 14% in wheat and 32% in barley. The absence of a row-spacing-by-seeding-rate interaction suggests that adjustments in seeding rates are not required with changes in row spacing. The presence of surface residues and standing stubble cannot explain the lack of a row-spacing effect when using a zero-tillage stubble-cropping system, since similar results were obtained with a conventional-tillage fallow management system in this study. Key words: Yield, yield components, plant density

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