EFFECT OF SEEDING RATE AND METHOD OF WEED CONTROL ON THE PRODUCTIVITY OF GIZA 2000, A PROMISING BARLEY LINE, UNDER NEW LANDS CONDITION
EL-BAWAB, A., KHOLOUSY, A. (2003). EFFECT OF SEEDING RATE AND METHOD OF WEED CONTROL ON THE PRODUCTIVITY OF GIZA 2000, A PROMISING BARLEY LINE, UNDER NEW LANDS CONDITION. EKB Journal Management System, 81(3), 1085-1098. doi: 10.21608/ejar.2003.281728
AHMED M. O. EL-BAWAB; AHMED S. KHOLOUSY. "EFFECT OF SEEDING RATE AND METHOD OF WEED CONTROL ON THE PRODUCTIVITY OF GIZA 2000, A PROMISING BARLEY LINE, UNDER NEW LANDS CONDITION". EKB Journal Management System, 81, 3, 2003, 1085-1098. doi: 10.21608/ejar.2003.281728
EL-BAWAB, A., KHOLOUSY, A. (2003). 'EFFECT OF SEEDING RATE AND METHOD OF WEED CONTROL ON THE PRODUCTIVITY OF GIZA 2000, A PROMISING BARLEY LINE, UNDER NEW LANDS CONDITION', EKB Journal Management System, 81(3), pp. 1085-1098. doi: 10.21608/ejar.2003.281728
EL-BAWAB, A., KHOLOUSY, A. EFFECT OF SEEDING RATE AND METHOD OF WEED CONTROL ON THE PRODUCTIVITY OF GIZA 2000, A PROMISING BARLEY LINE, UNDER NEW LANDS CONDITION. EKB Journal Management System, 2003; 81(3): 1085-1098. doi: 10.21608/ejar.2003.281728

EFFECT OF SEEDING RATE AND METHOD OF WEED CONTROL ON THE PRODUCTIVITY OF GIZA 2000, A PROMISING BARLEY LINE, UNDER NEW LANDS CONDITION

Egyptian Journal of Agricultural Research
Article 12, Volume 81, Issue 3, September 2003, Page 1085-1098  XML PDF (3.48 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2003.281728
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Authors
AHMED M. O. EL-BAWAB1; AHMED S. KHOLOUSY2
1Barley Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
2Weed Research, Laboratory, Agricultural Research Center, Dokki, Giza, Egypt
Abstract
Two field experiments were conducted at Nubaria Ag­ricultural Research Station during two consecutive growing sea­sons; 1999/2000 and 2000/2001 to determine the optimum seeding rate and weed control package for the new promising line (Giza 2000) under new lands.Four seeding rates (30,40,50,and 60 kg seeds/fad.) and three weed control (1-unweeded control 2- hand weeding twice 3-herbicidal control by Sinai 10% followed by Grasp10%. The highest seeding rates 60 and 50 kg /lad. produced the highest values of grain yield/fad., number of spikes/m and the lowest number and fresh weight of weeds (Avena spp was the dom­inant grassy weed and Raphanus raphanistrum as a dominant broad leaf weed). On the other hand seeding rate at 30 kg seeds /fad. gave the highest values of number of spikes /plant, grain yield / plant ,biological yield /plant, number of kernels/spike, spike kernel weight, 1000kwt, and number and fresh weight of both weed spe­cies. Grain yield increased from 12.6 ard. /fad. with 30 kg seeds / fad. to 16.51 ard. /fad. with 60 kg seeds Had. This increased es­timated by 31.90 %. Controlling weeds by herbicidal treatments in­creased grain yield by about 40.3 and 13.6 % compared to unweeded and hand weeding, respectively. Number of weeds decreased from 77 plants under 30 kg. seeds/ fad. to 13 plants under 60 kg. seeds / fad. However, when application of the mentioned herbicidal treat­ment totaley, vanquished the weeds, since zero number of weed plants was recorded after 90 days from sowing. The tratments of 40,50 and 60 kg seeds/fad with weed control and 60 kg seeds/fad. only (unweeded control) gave similar grain yield. The recommended package of the newly promising line (Giza 2000) sowing by 40 kg sends /fad. and treated by Sinai 10 % SC at 40 cc/fad. applied after 20 days from sowing and followed by Grasp 10 % EC at 1 L/fad. af­ter 21 days interval. The second recommended tretment was sow­ing by 60 kg seeds/fad. without weed control.
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