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

By:

Attalla, S. I

Language: English Summary language: Arabic Description: p.539-552Other title:

تأثير طرق مكافحة الحشائش مع طرق الزراعة على الحشائش ونبات الذرة الرفيعة [Added title page title]

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Bulletin of Faculty of Agriculture. Cairo University, 2002 v. 53 (4) [electronic resource].

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In: The Bulletin Faculty of Agriculture, Cairo University 2002.v.53(4)Summary: 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. untreated, fluroxypyr, tribenuron-methyl, fluroxypyr plus one hand hoeing, tribenuron-methyl plus one hand hoeing and hand hoeing twice 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 percentages were 35, 26.5 and 32.7% in the 1st season and 23.2, 38.2 and 27.9 %in the 2nd season, 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 season and 97.6, 91.6 and 96.9 % in the 2nd season, respectively compared to the 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. Key words: sowing methods(irrigation pre-afir method and afir method), weed control treatment (fluroxypyr, tribenuron- methyl) and sorghum.

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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. untreated, fluroxypyr, tribenuron-methyl, fluroxypyr plus one hand hoeing, tribenuron-methyl plus one hand hoeing and hand hoeing twice 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 percentages were 35, 26.5 and 32.7% in the 1st season and 23.2, 38.2 and 27.9 %in the 2nd season, 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 season and 97.6, 91.6 and 96.9 % in the 2nd season, respectively compared to the 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. Key words: sowing methods(irrigation pre-afir method and afir method), weed control treatment (fluroxypyr, tribenuron- methyl) and sorghum.

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