INTERACTIVE EFFECTS OF WATER AND NITROGEN STRESS ON BIOMASS ACCUMULATION, NITROGEN UPTAKE AND SEED YIELD OF MAIZE

Authors

  • M. ARUNA, B. BALAJI NAIK, G. SREENIVAS, K.K. CHOUDARY and M. SHANKARAIAH

Abstract

Maize is a multi-faceted crop used as food, feed and industrial crop globally. It is grown throughout the world, with the United States, China, and Brazil
being the top three maize producing countries in the world, producing approximately 563 of the 717 million tons/year (Ranum et al., 2019). Water and nitrogen are the most important factors which play a major role
in better growth and yield of maize (Hammad et al.,2011). Maize crop growth is affected by different stresses viz., deficit irrigation, pest, weed, nutrients, etc., which reduce the productivity. Water stress occurring at different crop developmental stages could potentially limit biomass accumulation and consequently reduce grain yield of the maize crop. The
interactive effects of water and nitrogen shows an impact on morphological, physiological and yield attributes of maize. Ramachandiran and Pazhanivelan, (2015) stated that, owing to the increased frequency
of irrigation along with a higher dose of nitrogen application leading to increased nutrient uptake, higher photosynthetic rate leading to higher plant height, LAI and dry matter production. Whereas, when maize grown under conditions of limited water supply requires less nitrogen to achieve the maximum grain yield than that required with well water supply (Moser et al., 2006). Optimization of nitrogen dose based on availability of soil moisture and crop response is need of hour. Hence this investigation was designed to study the yield response of maize crop under differential water and nitrogen levels to optimize the nitrogen use based on availability of water for irrigation in maize crop.

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Published

2022-04-11

How to Cite

K.K. CHOUDARY and M. SHANKARAIAH, M. A. B. B. N. G. S. (2022). INTERACTIVE EFFECTS OF WATER AND NITROGEN STRESS ON BIOMASS ACCUMULATION, NITROGEN UPTAKE AND SEED YIELD OF MAIZE. The Journal of Research, PJTSAU, 49(4). Retrieved from https://epubs.icar.org.in/index.php/TJRP/article/view/123212

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