Effect of Glycine Amino Acid Chelated Zinc and Iron on Yield, and Macro and Micronutrient Contents of Rice Aerial Tissues

Document Type : Research Paper

Authors

1 Academic member of rice research institute of Iran

2 Associate Professor of Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization, Rasht, Iran

3 Assistant Professor of Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization, Rasht, Iran

4 Research Instructor of Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization, Rasht, Iran

5 Senior Researcher of Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization, Rasht, Iran

Abstract

Compared to the other micronutrient fertilizers, amino acids chelated can significantly improve rice growth, increase grain yield, and macro and micronutrient contents of rice aerial tissues due to better uptake, higher efficiency, and nitrogen content. In this current project, we explored the effect of glycine amino acid chelated zinc and iron on yield, grain biofortification, and macro and micronutrient contents of (introduced by Pak Gostar Company) rice aerial tissues compared to zinc sulfate (chemical source). The current field experiment was conducted on the research field of the Rice Research Institute of Iran (RRII), Rasht, Iran during rice growing seasons of 2019-20. The 12 experimental treatments were conducted in a randomized complete block design with three replications on the most common Iranian local rice cultivar (Hashemi). The experimental treatments were the foliar application of 0.5, 1, and 1.5 kg ha-1 of Zn and Fe glycine amino acid chelates and ZnSO4 under recommended and 50% of recommended NPK application. The highest increase in the grain yield was recorded at 0.5 kgha-1 Fe-glycine amino acid chelate by about 29.2%. The maximum increase percentage of Fe, Zn, N, P, and K content of rice grain was observed by about 32, 22,23,17 and 7% through foliar application of glycine amino acid chelated zinc and iron. This trend also was recorded for white rice and rice straw, but milling processes significantly reduced the above-mentioned nutrients by about 15, 0.5, 6, 8, and 12 times compared to their content in rice grain.

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