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Asian Journal of Plant Sciences
  Year: 2009 | Volume: 8 | Issue: 2 | Page No.: 160-165
DOI: 10.3923/ajps.2009.160.165
 
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Effects of Nitrogen Fertilizing Systems and Harvest Frequencies on Forage Dry Mater Yield and Quality of Snail Medic (Medicago scutellata Var. Robinson)

A.H.A. Ahmadi, M.R. Chaichi and M. Mirabzade

Abstract:
The study was conducted to determine the effects of nitrogen fertilizing systems and harvest frequencies on DM (dry matter) yield and forage quality of snail medic; Medicago scutellata var. Robinson. Rhizobium meliloti inoculation and four levels of chemical nitrogen fertilizer (0, 25, 75 and 125 kg N ha-1) were allocated to the main plots while four levels of harvest frequencies such as 1, 2 and 3 weeks intervals and control with only one harvest at 50% flowering were assigned to subplots. According to the results of this experiment, nitrogen fertilizing systems had significant effects (p<0.05) on DM yield and CP (crude protein) concentration of snail medic as these traits increased with the increment in availability of nitrogen for plants. Harvest frequency increased the DM yield, CP and WSC (water soluble carbohydrate) concentrations, whereas decreased the ADF (acid detergent fiber) concentration. Interaction between harvest frequency and nitrogen fertilizer systems was significant (p<0.05) for DM yield and WSC concentration; hence treatment of 75 kg N ha-1 with two-week harvest interval produced acceptable DM yield with proper quality in M. scutellata, which eliminated the necessity of Rhizobium inoculation and reduced the cost and environmental contamination compared to 125 kg N ha-1.
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How to cite this article:

A.H.A. Ahmadi, M.R. Chaichi and M. Mirabzade, 2009. Effects of Nitrogen Fertilizing Systems and Harvest Frequencies on Forage Dry Mater Yield and Quality of Snail Medic (Medicago scutellata Var. Robinson). Asian Journal of Plant Sciences, 8: 160-165.

DOI: 10.3923/ajps.2009.160.165

URL: https://scialert.net/abstract/?doi=ajps.2009.160.165

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