Assessment of nitrogen doses and planting densities for optimizing growth and yield performance of rainfed maize (Zea mays L.)

DOI: 10.18805/IJARe.A-4772    | Article Id: A-4772 | Page : 473-477
Citation :- Assessment of nitrogen doses and planting densities for optimizing growth and yield performance of rainfed maize (Zea mays L.).Indian Journal Of Agricultural Research.2017.(51):473-477
Selila Sangtam, T. Gohain and Noyingthung Kikon noyingkikon@gmail.com
Address : Department of Agronomy, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Dimapur, Nagaland-797106, India
Submitted Date : 21-04-2017
Accepted Date : 2-09-2017

Abstract

A field investigation was conducted during the kharif season of 2014 to optimize N doses and planting densities for enhanced growth and yield performance of maize under rainfed conditions of Nagaland.  Application of N @ 80 kg/ha resulted in higher N uptake and enhanced growth of maize ultimately expressing superior yield attributes and registering the highest grain and stover yields of 3518.5 and 6976.01 kg/ha respectively. Maintaining a planting density of 55,555 plants/ha at a spacing of 60 cm x 30 cm was found to provide optimum crop stand in maize resulting in higher N uptake and favourable growth consequently recording better yield attributes and maximum grain yield of 2941.66 kg/ha. However, higher planting density of 74,074 plants/ha at a spacing of 45 cm x 30 cm was found to be more effective for higher stover yields up to 6772.63 kg/ha. 

Keywords

Nitrogen levels Nitrogen uptake Planting density Rainfed maize.

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