Zayed, B., El-Kallawy, W., Gorgy, R. (2011). EFFICIENCY OF DIFFERENT SCHEDULES OF POTASSIUM FOLIAR APPLICATION ON YIELD, YIELD COMPONENTS AND SOME PHYSIOCHEMICAL PROPERTIES OF HYBRID RICE UNDER SALINE SOIL CONDITIONS. Journal of Plant Production, 2(10), 1299-1310. doi: 10.21608/jpp.2011.85658
B. A. Zayed; W. H. M. El-Kallawy; R. N. Gorgy. "EFFICIENCY OF DIFFERENT SCHEDULES OF POTASSIUM FOLIAR APPLICATION ON YIELD, YIELD COMPONENTS AND SOME PHYSIOCHEMICAL PROPERTIES OF HYBRID RICE UNDER SALINE SOIL CONDITIONS". Journal of Plant Production, 2, 10, 2011, 1299-1310. doi: 10.21608/jpp.2011.85658
Zayed, B., El-Kallawy, W., Gorgy, R. (2011). 'EFFICIENCY OF DIFFERENT SCHEDULES OF POTASSIUM FOLIAR APPLICATION ON YIELD, YIELD COMPONENTS AND SOME PHYSIOCHEMICAL PROPERTIES OF HYBRID RICE UNDER SALINE SOIL CONDITIONS', Journal of Plant Production, 2(10), pp. 1299-1310. doi: 10.21608/jpp.2011.85658
Zayed, B., El-Kallawy, W., Gorgy, R. EFFICIENCY OF DIFFERENT SCHEDULES OF POTASSIUM FOLIAR APPLICATION ON YIELD, YIELD COMPONENTS AND SOME PHYSIOCHEMICAL PROPERTIES OF HYBRID RICE UNDER SALINE SOIL CONDITIONS. Journal of Plant Production, 2011; 2(10): 1299-1310. doi: 10.21608/jpp.2011.85658
EFFICIENCY OF DIFFERENT SCHEDULES OF POTASSIUM FOLIAR APPLICATION ON YIELD, YIELD COMPONENTS AND SOME PHYSIOCHEMICAL PROPERTIES OF HYBRID RICE UNDER SALINE SOIL CONDITIONS
Rice Research and Training Center, Sakha, 33717, Kafr EL-Shiekh, Field Crop Research Institute, Agriculture Research Center (ARC),Egypt.
Abstract
In order to overcome root media problems in feed application of Potassium under saline soil conditions, we carried out this investigation at El- Serw Agricultural Research Station, Agricultural Research Center, Egypt during 2009 and 2010 seasons in randomized complete plot design with four replication to study various schedules of potassium foliar sprays application with 2% K2O once at maximum tillering stage, twice at both maximum tillering growth and panicle initiation growth stages or thrice at maximum tillering growth, panicle initiation growth and booting growth stages along with root media application as basal with ( 58kgK2O/ ha.) and control (without any application) on yield, yield components and some physiochemical properties of Egyptian hybrid Rice one( ERH 1 ) under saline soil conditions.
The results obtained revealed that potassium application either though root media as basal application or foliar sprays at different growth stages surpassed the control in all studied parameters. Foliar sprays of K with 2% K2O at different growth stages of rice plant showed significant superiority in plant height, number of panicles/ unit area, sterility %, number of grains/ panicle, panicle weight, 1000 grain weight, grain yield and some of physiochemical parameters compared with potassium as basal application.
Among schedules of K foliar sprays application, data recorded that multi - way scheme of K foliar sprays application with 2 % K2O at maximum tillering stage, panicle initiation stage and booting stage significantly produced the peak values in yield, yield components as well as physiochemical properties compared with the rest of K foliar sprays application under study.
Finally, from the data obtained it could be concluded that K foliar sprays with 2% K2O thrice at natal growth stages; maximum tillering stage, panicle initiation stage and booting stage is much sufficient to improve yield and yield components as well as physiochemical properties of Egyptian hybrid rice under saline soil conditions.
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