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Investigating of N and K Fertilizers on Yield and Components of Soybean (Glycine max (L.) Merr.)

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  • Elahe Shahkoomahally
  • Shirin Shahkoomahally

Abstract

Nitrogen and potassium fertilization have given variable results in increasing soybean yield. More information is needed about optimum potassium (K) and nitrogen (N) fertilizers placement for soybean. This study investigated the effect of different amounts of nitrogen and potassium on yield and its components on soybean cultivar DPX. Treatments include nitrogen (from urea) - Potash (potassium sulfate) in seven levels (N0-K0, N50-K0, N0-K20, N50-K20, N100-K50, N200-K100 and N250-K150 kg/ha) and factor inoculated and non-inoculated at two levels. Some growth parameters such as seed number, 100 seed weight, pod number, yield and harvest index were analyzed. There was significant difference between seed number and 100 seed weight. When the seeds were inoculated with bacteria, treatments N0-K0 and N250-K150 have a minimum and maximum number of seeds in these conditions, respectively. Also, the results showed that 100 seed weight in treatments inoculated with bacteria, N250-K150 most (24 g per plant) and N0-K0 minimal (14 g per plant), respectively. In the absence of inoculation with bacteria treated N0-K0 also had the lowest 100 seed weight. There was a positive correlation between number of pod per plant, yield and harvest index and N rate. Consequently the results demonstrated that increases in yields were necessarilyrelated to increase in plant N and K content and inoculated with bacteria had a marginal effect.

Suggested Citation

  • Elahe Shahkoomahally & Shirin Shahkoomahally, 2017. "Investigating of N and K Fertilizers on Yield and Components of Soybean (Glycine max (L.) Merr.)," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 9(10), pages 1-85, September.
    • Handle: RePEc:ibn:jasjnl:v:9:y:2017:i:10:p:85
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    References listed on IDEAS

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    1. Masuda, Tadayoshi & Goldsmith, Peter D., 2009. "World Soybean Production: Area Harvested, Yield, and Long-Term Projections," International Food and Agribusiness Management Review, International Food and Agribusiness Management Association, vol. 12(4), pages 1-20, November.
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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