Effectiveness of Zinc Coated, Blended and Bio-Activated Zinc Coated Urea to Quality, Biochemical Parameters and Yield in Rice Crop (Oryza sativa L.)
Effectiveness of Zinc Coated, Blended and Bio-Activated Zinc Coated Urea to Quality, Biochemical Parameters and Yield in Rice Crop (Oryza sativa L.)
Qudsia Nazir1, Muhammad Aftab1*, Ghulam Sarwar2, Aneela Riaz3, Sarfraz Hussain1, Ifra Saleem1, Amina Kalsom1, Noor-Us-Sabah2, Mukkram Ali Tahir2, Ateeq-ur-Rehman4 and Muhammad Arif1
ABSTRACT
Zinc (Zn) is an important microelement not only for animals, plants but for humans as well. Its importance cannot ignore for the plants to improve overall quality and yield. The overall physiology, quality and biochemical parameters also enhanced with optimum application of Zn. By keeping in mind, the facts, it was hypothesized that the use of ZnO (a cheap source of Zn) impregnated urea for rice may enhance grains (paddy) yield. Three types of urea were prepared including Zn coated, bio-activated Zn coated and Zn blended urea at the 1.5% rate of formulate. The bio-activated Zn coated urea was prepared by inoculating the powdered organic material with Zinc solubilizing bacterium and then this material was mixed with ZnO. This bio-active Zn was coated on urea at 1.5% rates to formulate. Moreover, Zn blended urea was prepared by mixing powder ZnO with urea. The comparative efficacies of different types of Zn impregnated urea were compared with ZnSO4 to grains yield, physiology and biochemistry of rice under field conditions. The results showed that 1.5% bio-activated Zn (ZnO) coated urea performed better in promoting yield and biochemical parameters. About 15 to 20% increase was observed in yield physical, biochemical and quality parameters. This suggests that the application of bio-activated Zn coated urea @ 1.5% is greatly active in enhancing quality and yield of rice crop.
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