Indian Journal of Agricultural Research

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Research Article

Indian Journal of Agricultural Research, volume 51 issue 5 (october 2017) : 473-477

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

Selila Sangtam, T. Gohain, Noyingthung Kikon
1Department of Agronomy, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Dimapur, Nagaland-797106, India
Cite article:- Sangtam Selila, Gohain T., Kikon Noyingthung (2017). Assessment of nitrogen doses and planting densities for optimizing growth and yield performance of rainfed maize (Zea mays L.). Indian Journal of Agricultural Research. 51(5): 473-477. doi: 10.18805/IJARe.A-4772.

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. 

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