Effect of weed control treatments and two sowing methods on weeds and sorghum [Sorghum bicolor (L.) Moench].

Abstract: Two field experiments were carried out at Mattaana Agricultural Research Station , Esna, Qena Governorate during 2000 and 2001 summer seasons to study the effect of two sowing methods (afir A1 and false irrigation pre-afir A2) and weed control treatments i.e. Fluroxypur, tribenuron-methyl, fluroxypur plus one hand hoeing, tribenuron-methyl plus one hand hoeing, hand hoeing twice and Untreated on weeds and Sorghum yield. Results showed that fresh weight of broad-leaf, grassy and total weeds were lower under A2 than under A1 sowing method, and the reduction percentage were 35, 26.5 and 32.7% in the 1st sason and 23.2, 38.2 and 27.9% in the 2nd sason, respectively. The highest reduction of fresh weight of broad-leaf, grassy and total weeds was obtained from hand hoeing twice, being 96.7, 94.5 and 96.4% in the 1st sason and 97.6, 91.6 and 96.9% in the 2nd sason, respectively compared to control. Plant height, panicle length, panicle diameter, panicle weight,number of grains/ panicle, 1000 grain weight, grain yield/plant and grain yield/ fed. under A2 method were higher than under A1 method in both seasons. The highest grain yield/ fed. under A2 method was obtained from hand hoeing twice by 2.13 tons in the 1st sason and 2.17 tons in the 2nd sason, Hand hoeing twice under afir method after false irrigation (A2 method) was the best treatment,where it gave the highest reduction in fresh weight of broad-leaf, grassy and total weeds and the highest grain yield/fed. Therefore, this treatment is promising either for weed control ur for high grain yield of sorghum followed by using tribenuron-methyl plus one hand hoeing under A2 method, which gave 1.85 and 1.82 ton/fed. in the 1st and 2nd sasons, respectively.
Publication year 2002
Pages 539 – 552
Organization Name
serial title Bull. Fac. Agric., Cairo Univ.
Author(s) from ARC
Agris Categories Weeds and weed control
AGROVOC
TERMS		 Sorghum grain. Weed control.
Proposed Agrovoc sowing methods;fluroxypur;tribenuron-methyl;
Publication Type Journal
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