COMBINED EFFECT OF TILLAGE SYSTEMS, SOWING METHODS AND WEED CONTROL TREATMENTS ON WHEAT YIELD AND ASSOCIATED WEEDS | ||
| Fayoum Journal of Agricultural Research and Development | ||
| Article 22, Volume 23, Issue 1, January 2009, Pages 13-32 PDF (594.3 K) | ||
| Document Type: Research articles. | ||
| DOI: 10.21608/fjard.2009.197033 | ||
| Authors | ||
| F.S. Abd El-Samei; H. Mahfouz; Ekram A. Megawer; M.E. Rady | ||
| Agron. Dept. , Fac. Agric. , Fayoum University | ||
| Abstract | ||
| Two filed experiments were conducted at the Experimental Farm of Faculty of Agriculture, Fayoum University in the two successive growing seasons 2006/2007 and 2007/2008 .The principal aim was to investigate the effect of tillage system, sowing methods, weed control treatments and their interactions on growth, yield, yield components and grain protein content. The experiments were laid-out in a Split-Split Plot arranged in Randomize Complete Block design with four replications. The plot area was 10.5 m2. The wheat variety used was Sakha94. Results generally showed that the major weeds species associated with wheat crop were mostly broadleaved weeds. The lowest weights in fresh and dry broad leaved weeds was obtained with tillage system (T2) compared with ordinary tillage (T1) in both seasons, and significantly increased plant height, number of spikes/m2, number of grains /spike, grain weight(g) /spike, , total protein percentage, and grain yield (ton/fed). Drilling method decreased the fresh and dry weight of weeds compared with broadcasting method and increased plant height, flag leaf area, number of grains/spike, grain weight/spike seed index (g), , harvest index (%), and grain yield. On the other hand broadcasting method increased only number of tillers/plant, in second season and straw yield ( ton/fed)in both seasons. All chemical weed control treatments decreased fresh and dry weights of broad-leaved weeds compared with unweeded. The highest reduction in broad-leaved weeds was achieved with Tribenuron-methyl (95%) along with hand weeding (70%). Also these treatments had significant effects on yield and yield components as well as, the total protein percentage in grains. Tribenuron-methyl treatment exhibited the highest grain yield (2.62 and 2.72t/fed.) followed by hand weeding treatment (2.08 and 2.0t/fed) in first and second season, respectively. Interaction effect between tillage systems (T) and weed control (WC) was significant on plant height at harvest, flag leaf area, and harvest index. While the interaction between sowing methods (SM) and weed control (WC) was significant on number of tillers/plant, number of spikes/plant, number of grains /spike. | ||
| Keywords | ||
| Wheat; Tillage system; Sowing methods; Weed control; Growth; Yield and quality | ||
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