Document Type: Original Article

Authors

Department of Agronomy and Plant Breeding Esfahan (Khorasgan) Branch, Islamic Azad University, Esfahan, Iran

Abstract

To evaluate the effect of nitrogen fertilizer amounts on grain yield of forage corn in 2012, a pilot was implemented in Islamic Azad University Agricultural Research Station, Isfahan, as a split plot in a randomized complete block design. Main plots consisted of four levels: control (no fertilization ) , 50 , 100 and 150 kg per ha nitrogen from urea source and subplots , including several varieties of corn ( single cross 704 , single cross 640 and single cross 540 ), respectively. Results indicate that the effect of nitrogen fertilizer and cultivar effects on the number of rows per ear, number of seed per row, number of grains per maize, seed weight and seed yield were significant. With more than 704 varieties of seed number per row and number of seeds per ear, more grain yield was produced. The 540 cultivar was not significantly different. Treated with 150 kg N ha- highest number of seed per rows and number of seeds produced. Treatment of 100 kg per hectare produced the highest seed weight and seed yield and seed weight could generate the maximum highest yield significantly different results, and treatment was 150 kg N ha. Thus, the results indicate that treatment of 100 kg per ha nitrogen to achieve maximum yield was good

Keywords

Main Subjects

Aktinoye HA, Lucas EO, Kling JG. 1997. Effects of density of planting and time of nitrogen application onmaize varieties in different ecological zones of West Africa. Communications in Soil Science and Plant Analysis.28: 1163 – 1175.

Alizadeh A, Nadi A, Nadian H, Normohamadi Q, Amerian M. 2007. Effect of Drought Stress and Nitrogen Fertilizer on Maize phenology and growth. Journal of Agricultural Sciences and Natural Resources, 14: 11-1.

Al-Rudha MS, Younis AH. 1978. The effect of row spacing and nitrogen levels on yield, yield components and quality of maize (Zea mays L.) Iragi. Journal Agricultural. Science. 13:235-252. In Field Crops Aabs. 34(1):51.

Asghari M, Hanson RG. 1984. Nitrogen, climat and perevious crop effect on corn yield and grain.

Bundy GL, Carter PR.1988. Corn hybrid response to nitrogen fertilization in northern corn belt. Agricultural Journal­­.1(2): 99-104.

Costa C, Stevart LM, Smith DL. 2002. Nitrogen effects on grain yield and yield components of early andnonleafy maize genotypes. Crop Science.42:1556-1563

Dlamini SM. 1990. Analysis of small scale farmers incrementall technology adoption behavior in swaziland. Masters Thesis, The University of Pennsylvania.

El-Sheikh FT. 1998. Effect of soil application of nitrogen and foliar application with manganese on grain yield and quality of maize (Zea mays L.) proc. 8th Conf. Agronomy Suez Canal University. Ismailia, Egypt. 28-29:174-181.

Ghasemipirbaloti A, Akbari A. 2002. Effect of Nitrogen Fertilizer on harvest index, grain protein, yield components and grain yield. Abstracts of the Seventh Congress of Agronomy Iran.

Hamidi A, Khodabandeh N, Dabbagh Mohammadi Nasab A. 2000. Effect of plant density and nitrogen levels on grain yield and some characteristics of two corn hybrids. Iranian Journal of Agricultural Science. 31 (3): 579-567.

Homayounfar F, Bahraminejad A. 2008. Effect of split application of nitrogen fertilizer and micro (micronutrients) on the performance of SC 704 Corn in Kerman weather conditions. Journal of Modern Agriculture, 10: 106-95.

Jafartayari D. 2011. Effect of different levels of nitrogen on the road, yield, yield components, remobilization of assimilates and source of restrictions varieties of maize in the region. Master Thesis of Agronomy, Faculty of Agriculture, Islamic Azad University (Isfahan).

Tavakoli AR. 1993. Fertilizing effects of nitrogen, phosphorus and potassium on growth and yield of maize. Master's thesis. Isfahan University of Technology.

Kazemiarbat H. 1999. Private agriculture. Volume I: Grains. Tehran: Center for Academic Publication, 315 pages.


Khajehpour MR, 2009. Principles and Fundamentals of Crop Production (Third edition). Isfahan university of technology. 631pages.

Kamprath, E.L., R.H. Moll and H. Rodringuez. 1980. Effect of nitrogen fertilization and recurrent selection on performance of hybrid populations of corn. Agron. J. 74:955-958.

Moll RH, Kamprath EJ, Jackson WA. 1982. Analysis and interpretation of factors which contribute to efficiency of nitrogen utilization. Agronomy Journal. 74:262-264.

Muchow RC, Sinclair TR. 1994. Nitrogen response of leaf photosynthesis and canopy radiation use efficiency in field-grown maize and sorghum. Crop Science. 34:721-727.

Norwood CA.2001.Dry land corn in western Kansas, Effects of hybrid maturity, planting date and plant population. Agronomy Journal .93:540-547

Persad K, Singh P. 1990. Response of promising rainfed maize (Zea mays L.) varieties to nitrogen applicationin north western Himalayan region. Indian.Journal. Agricultur. Science. 60(7):475-477.

Purcell LC, Rosalind AB, Reaper DJ, Vories ED. 2002. Radition use efficiency and biomass production in soybean at different plant population densities. Crop Science, 42:172-177.

Purcino  AAC, Silva MR, Andrade SRM, Belete CL, Parentoni SN, Santos MX. 2000. Grain filling in maize: the effect of nitrogen nutrition on the activities of nitrogen assimilating enzymes in the pedicel–placentocha-laza region. Maydica 45:95-103.

Ritchie SW, Hanway JJ, 1993. How a Corn Plant Develops. Iowa State University of Science and Technology, Ames, 26pp. (Special Report, 48) Available from: http:///www.biologie.unihamburg.de//bonline/liberary/maize//www.agiasate.edu/departments/agronomy/corngrows.htm.[Acceseed 4 June. 2011].

Sinclair T, Bennetto RDM, Muchow RO.1990. Relative sensivity of grain yield and biomass accumulation to drought in field grown maize. Crop Science. 30: 690- 693.

Smiciklas KD, Below FE. 1990. Influence of heterotic pattern on nitrogen use and yield of maize. Maydica.35:209-213.

Tollenaar M. 1977. Sink-source relationship during reproductive development in maize. A review. Maydica22:49-75.

Uhart SA, Andrade FH. 1995. Nitrogen deficiency in maize: I: Effects of crop growth, development, dry matter partitioning, and kernel set. Crop Science. 35:1384-1389.

Uhart SA, Andrade FH.  1995. Nitrogen deficiency in maize: II. Carbon-nitrogen interaction effects on kernel number and grain yield. Crop Science. 35: 1384-1389.

Wienhold BJ, Trooien TP, Reichman GA. 1995. Yield and nitrogen use efficiency of irrigated corn in the northen Great Plains. Agronomy Journal. 87: 842-846.

Zandi P. 2012. Effect of plant density on yield new hybrids of maize in the region. Master Thesis of Agronomy, Faculty of Agriculture, Islamic Azad University (Isfahan).

Zeynali H, Nasr Abadi, A, Hossein Zadeh E. 2005. Factor analysis of the maize varieties. Iranian Journal of Agricultural Science, 36 (4): 902-895.