Effect of Nano Nitrogen and Zinc Application on Dry Matter at Different Stages and Grain, Straw Yield of Paddy
J. Akshay Reddy *
Department of Soil Science and Agricultural Chemistry, Rajendranagar, PJTSAU, Hyderabad, India.
M. Chandini Patnaik
AICRP on Micro and Secondary Nutrients ARI, Rajendranagar, Hyderabad, India.
T. Anjaiah
AICRP on Micro & Secondary Nutrients ARI, Rajendranagar, Hyderabad, India.
D. Sreelatha
Regional Agricultural Research Station, Polasa, Jagityal-505327, India.
P. Naga Seshi Reddy
RPCAU, India.
*Author to whom correspondence should be addressed.
Abstract
A Pot culture experiment was carried out at Agriculture Research Institute, Rajendranagar, To study the impact of Nano Nitrogen in combination with zinc (soil application or foliar spray) on yield, in paddy crop. The soils employed in net house experiment were selected based on low, medium and high zinc availability classes obtained from the zinc analysis data of surveyed samples. They are low (0.4 mg kg-1), medium (0.71 mg kg-1) and high (1.30 mg kg-1). The results revealed that the highest dry matter at Panicle initiation, Grain and Straw yield were observed in the treatment applied with hundred percent recommended dose of nitrogen through NCU granules along with RDPK and soil application of 25 kg zinc sulphate ha-1 resulted in an increase in grain and straw yields by 23 & 24 % over basal application of 1/3rd of 100 % RDN through NCU granules along with RDPK coupled with Nano nitrogen sprays (each at MT & PI stages in rice) and soil application of 25 kg zinc sulphate ha-1
Keywords: Nano nitrogen, dry matter yield, sustainable agriculture, zinc