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Pakistan Journal of Biological Sciences
  Year: 2008 | Volume: 11 | Issue: 1 | Page No.: 80-85
DOI: 10.3923/pjbs.2008.80.85
 
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Cultivar and Nitrogen Splitting Effects on Amaranth Forage Yield and Weed Community

A. Aynehband

Abstract:

A 2 year field study was carried out at Agricultural Faculty of Shahid Chamran University of Ahvaz (Iran), in order to evaluate the response of Amaranth cultivars and weed dynamic to N splitting methods. Three Amaranth cultivars (i.e., Amont, Trigin and Plainsman) were grown in three N splitting methods (i.e., Commonly, Equal and Semi-equal) that being applied at planting, 12th leaf appearance and stem elongation. A split plot design replicated three times was used which Amaranth cultivars and N splitting methods were arranged in main and sub plots, respectively. Results showed that the highest forage yield was obtained for Trigin with Equal N splitting (i.e., 31.2 t ha-1) and Plainsman with Semi-equal N distribution (i.e., 3.8 t ha-1) the lowest. Also, the maximum and minimum protein content (%) were obtained for Trigin with Equal N splitting (16%) and Amont with commonly N splitting (11.9%), respectively. It was found that just Trigin with Equal N splitting treatment was the best treatment for both forage quality and quantity yield. Moreover, the weed communities and dominant species changed in response to various N splitting methods and Amaranth cultivars traits. Plainsman with Semi-equal N splitting treatment was the unfavorable treatment for both crop yield and weed infestation. Based on these results it is recommend that N splitting method be applied mainly as an Equal form in Trigin amaranth cultivar, to enhance crop forage yield and reduce weed infestation.

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How to cite this article:

A. Aynehband , 2008. Cultivar and Nitrogen Splitting Effects on Amaranth Forage Yield and Weed Community. Pakistan Journal of Biological Sciences, 11: 80-85.

DOI: 10.3923/pjbs.2008.80.85

URL: https://scialert.net/abstract/?doi=pjbs.2008.80.85

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