EFFECT OF ROW WIDTH, HILL SPACING AND NITROGEN LEVELS ON SEED COTTON YIELD OF GIZA 83 COTTON CULTIVAR

ABDEL-MALAK, KARM K. I.; RADWAN, FOUAD E.; BASLIOUS, SAMER I.

doi:10.21608/ejar.1997.410399

EFFECT OF ROW WIDTH, HILL SPACING AND NITROGEN LEVELS ON SEED COTTON YIELD OF GIZA 83 COTTON CULTIVAR

Document Type : Original Article

Authors

¹ Cotton Research Institute, Agricultural Research Centre, Giza, Egypt

² Soils and Water Research Institute, Agricultural Research Center, Giza, Egypt

10.21608/ejar.1997.410399

Abstract

Two field experiments were carried out at Mallawi Agricultural Research Station, Middle Egypt, during 1993 and 1994 seasons using the Egyptian cotton Giza 83 (G.barbadense L.) to study the effect of row width, hill spacing, i.e. plant population, by planting cotton on the two sides of row at spacing of 70, or 90 cm between rows with 25, 30 and 35 cm between hills, compared with 60 cm between' rows and 20 cm between hills, under two nitrogen levels (60 and 80 kg N/fed.). The experimental design was split plot with four replications. The results indicated that : number of fruiting branches/plant, number of open boils/plant, boll weight and plant yield increased by decreasing plant density (53.333) plants/fed.). Plant stand at picking increased by narrow spacing between hills, while percentage of plants survival increased in case of wider planting. The highest seed cotton yield/ fed. was obtained by planting cotton on the two sides of row 90 cm width and 30 cm between hills (62.222 plants/fed.). Nitrogen level had no significant effect on boll weight and plant stand at picking, while number of fruiting branches/plant, number of open bolls/plant, plant yield and seed cotton yield/fed. increased by raising nitrogen level up to 80 kg/fed.