Effect of Zn and K elements on yield and yield components of rice (Oryza sativa L.) cv. Tarom Hashemi
Journal Title: International Journal of Farming and Allied Sciences - Year 2015, Vol 4, Issue 1
Abstract
In order to study the effects of Zn and K on yield and yield components of rice cv. Tarom Hashemi, a factorial experiment was conducted in a research farm in Islamic Azad University of Chalus, Iran in 2012 on the basis of a Randomized Complete Block Design with three replications. The treatments included K fertilization at four levels (0, 50, 100 and 150 kg ha-1) and Zn fertilization at three levels (0, 30 and 60 kg ha-1). K and Zn were supplied from K2SO4 and ZnSO4 sources, respectively. It was found that K had a significant effect on grain yield so that the highest grain yield was obtained by the application of 100 and 150 kg K ha-1 which can be associated with the number of fertile tillers and the number of grains per spike. In addition, the highest straw weight and biological yield and the lowest plant height were obtained under the application of 100 and 150 kg K ha-1, respectively. Zn fertilization had no significant effect on grain yield. However, the highest grain yield was observed in the treatment of 60 kg Zn ha-1. The interaction between K and Zn significantly changed plant height, leaf length, the number of grains per spike, biological yield and grain yield. The highest grain yield was produced by the treatment of 100 kg K ha-1 + 0 kg Zn ha-1. Finally, it can be recommended to apply 100 kg K ha-1 to realize appropriate yield of rice and that Zn application had no influence on yield and yield components of the rice in the present study.
Authors and Affiliations
Javad Mahmudi, Saeed Sharafi, Mahmud Tanha and Rohallah Hassanzade
Keywords
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