PRECISION NITROGEN MANAGEMENT IN CEREAL CROPS

M.M. CHAUDHARY¹*, H.L. CHAUDHARI², J.A. PATEL³, C.K. PATEL⁴, H.K. PATEL^5
1CNRM, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506, Gujarat, India
²C.P. College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506, Gujarat, India
³Cotton Research Station, Talod, Sabarkatha, 383215, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506, Gujarat, India
⁴CNRM, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506, Gujarat, India
⁵Main Forage Research Station, Anand Agricultural University, Anand, 388110, Gujarat, India
* Corresponding Author : mahendrachaudhary349@gmail.com

Received : 04-04-2019     Accepted : 27-04-2019     Published : 30-04-2019
Volume : 11     Issue : 8       Pages : 8317 - 8321
Int J Agr Sci 11.8 (2019):8317-8321

Keywords : Cereal, Fertilizer, Leaf color chart, Nitrogen Significant
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, 385506, Gujarat, India
Author Contribution : All authors equally contributed

India is the third largest producer and second largest consumer of Chemical fertilizer in the world, after China. The total production of nitrogen (N) in India was 13.43 million tons during 2017-18. However, the consumption of N was 16.96 million tons during 2017-18. So 3.43 million tones N was imported by India during 2017-18. Cereals are the maximum consumer of nitrogenous fertilizer. Cereals are the major source of food and fodder. Total cereal production of India is 251 Million tons during 2017-18. It is main source of energy for human being and animals. It play vital role for synthesis of chlorophyll and protein. Nitrogen use efficiency is very less (25-30%), because it is lost very easily through volatilization and leaching so precision nitrogen management is required. Low use efficiency of nitrogen fertilizers in agriculture contributes to different environmental impact like eutrophication of surface water bodies, acidification of agricultural soil and increased concentration of nitrous oxides in atmosphere contributing to global warming. Split application of the N fertilizer to cereal may reduce the rapid nitrous oxide emission and increase nitrogen use efficiency (NUE). Leaf Color Chart (LCC), Soil Plant Analysis Development (SPAD) meter, site specific nutrient management (SSNM), crop canopy sensor, crop stimulation models and controlled release fertilizers (CRF) are effective tools of precision N management. Around 10-25 % nitrogen can save through precision nitrogen management. According to our discussion LCC an ideal tool and eco-friendly to optimize NUE irrespective to N applied.

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