Various amounts and methods of application of nitrogen fertilizer on yield parameters of maize
Message:
Abstract:
To study amounts of nitrogen fertilizer on corn yield, an experiment in 2014 at the Research Farm of Islamic Azad University-Karaj Branch in the form of split block within the framework of randomized complete block design with four replications was performed. The different treatments of the experiment included urea fertilizer with three levels of 100, 150, and 200 kilogram per hectare and the distribution of sulfur coated nitrogen with three levels of 100, 150, and 200 kilogram per hectar. The results of analysis of variance showed that the distribution of nitrogen fertilizer on thousand grains weight, grain yield and harvest index at the level of 5% and plant fresh weight, plant dry weight and biological yield at the level of 1% were significant. According to the ANOVA interactions results only on grain yield at the level of 1% and harvest index at the level of 5% were significant. It can be concluded that the impact of fertilizer distributingin three stages has a good effect on corn traits. In addition, using nitrogen from various sources has been caused an increase in grain yield and thousand grains weight. According to the results, we can conclude with split application of nitrogen can be avoided of nitrogen avalable losses to plants. As a result of increased nitrogen use efficiency (NUE) increased the corn yield will be.
Language:
Persian
Published:
Journal of Agronomy and Plant Breeding, Volume:12 Issue: 4, 2017
Pages:
51 to 65
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