Evaluation of grain growth of corn and sorghum under K2O application and irrigation according

Valadabadi, S.A. and Farahani, H.A. and Khalvati, M.A. (2009) Evaluation of grain growth of corn and sorghum under K2O application and irrigation according. Asian Journal of Agricultural Sciences, 1 (1). pp. 19-24.

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In this experiment, interactive effects of different potassium application and water restrict on grain growth in Iran. The experimental unit had designed by achieved treatment in factorial on the basis completely randomized block design with three replicates. Certain factors including potassium and non-potassium applications (0 and 200 kg/ha), certain field crops (corn and sorghum) and water supply were studied. In this study crops water supply was determined by indicated irrigation conditions by keeping leaf Relative Water Content (RW C) >95% (non-drought stress condition or irrigation conditions) and drought condition by RWC=60-70%. We noticed, however K fertilizer significantly increased the grain growth rate of plants and although the non-drought stress treatment significantly increased grain growth rate. Whereas K application persist less damaging of drought stress result and it enabled plant to significantly grow its grain under the drought conditions. Our finding may give applicable advice to commercial farmers and agricultural research for management and concern on fertilizer strategy and carefully estimate soil potassium supply within dry or semidry areas as most challengeable issues of environmental safety.

Item Type: Article
Author Affiliation: Islamic Azad University of Shahr-e-Qods Branch, Shahr-e-Qods, Iran.
Subjects: Plant Production > Croping Systems
Plant Production > Farming Systems
Divisions: Sorghum
Depositing User: Mr T L Gautham
Date Deposited: 21 Oct 2010 04:42
Last Modified: 21 Oct 2010 04:42
Official URL: http://maxwellsci.com/print/ajas/19-24.pdf
URI: http://eprints.icrisat.ac.in/id/eprint/205

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