Response of straw and grain protein and nitrogen use efficiency in different plant densities and different nitrogen levels in maize (Zea Mays L.) hybrid 704
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 2
Abstract
The objective of this study was to evaluate the effect of plant population and nitrogen rate on yield and straw and grain protein and nitrogen use efficiency of corn (Zea Mays L, hybrid 704) in 2008 at Mamasani region, Fars Province. The experiment was conducted as a factorial based on randomized complete block design with three replications. In this study four plant population (75000, 90000,105000, and 130000 plant ha-1) and three nitrogen levels (200, 300 and 400 kg ha-1) were investigated. Grain yield was significantly increased from 12910 to 16890 kg ha-1 by increasing plant population from 75000 to 130000 plant ha-1. Maximum protein grain (6.9 g kg-1) was obtained from application of 400 kg N ha- 1. Straw protein was significantly increased from 6.428 to 6.965 g kg-1 by increasing nitrogen application from 200 to 400 kg ha-1. Maximum N Utilization Efficiency (NUtE) (32.32 kg/kg) were obtained from density of 130000 plant ha-1 and Minimum N Utilization Efficiency (NUtE) (30.11 kg/kg) were obtained from density of 75000 plant ha-1 Maximum N Utilization Efficiency (NUtE) (32.65 kg/kg) were obtained from application of 200 kg N ha-1 and Minimum N Utilization Efficiency (NUtE) (30.07 kg/kg) were obtained from application of 400 kg N ha-1. In summary, density of 130000 plants per hectare with consumption of 200 kg nitrogen per hectare will be introduced as the most appropriate treatment.
Authors and Affiliations
N. Niknam, H. Farajee, Hamideh Pourbehi, Mehdi ZareKhormizi, Amir Biranvand
Keywords
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