Indian Journal of Agricultural Research

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Research Article

Indian Journal of Agricultural Research, volume 52 issue 1 (february 2018) : 89-92

Agronomic biofortification in rice varieties through zinc fertilization under aerobic condition

Debasish Barua, Mrinal Saikia
1Assam Agricultural University, Jorhat- 785 013, Assam, India.
Cite article:- Barua Debasish, Saikia Mrinal (2018). Agronomic biofortification in rice varieties through zinc fertilization under aerobic condition. Indian Journal of Agricultural Research. 52(1): 89-92. doi: 10.18805/IJARe.A-4733.

ABSTRACT

A field experiment on agronomic biofortification in rice varieties through zinc fertilization under aerobic condition was carried out at Assam Agricultural University, Jorhat during autumn season of 2014. Among the Varities, Inglongkiri recorded significantly higher grain yield (21.09 q/ha) followed by Banglami (19.88 q/ha) under aerobic condition. Application of ZnSO4 @ 25 kg/ha + foliar spray @ 0.5% at 3 stages recorded the highest grain yield (21.46 q/ha) followed by application of ZnSO4 @ 25 kg/ha + seed priming with ZnSO4 (2%) (20.72 q/ha). The lowest grain yield was recorded in control treatment (16.47 q/ha). Highest grain Zn content (32.03 mg/kg) and Zn content of brown rice(without polish) (26.81 mg/kg) was noticed in Inglongkiri. Application of ZnSO4 @ 25 kg/ha as basal + foliar spray @ 0.5 % at three stages reveals significantly highest Zn content in grain (35.09 mg/kg) and brown rice (28.31mg/kg).

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