Giller, K.E., Cadisch, G., Ehaliotis, C., Adams, E., Sakala, W.D. and Mafongoya, P.L. (1997) Building Soil Nitrogen Capital in Africa. Replenishing Soil Fertility in Africa, 7, 151-192.

has been cited by the following article:

• TITLE: Yield and Fiscal Benefits of Rhizobium Inoculation Supplemented with Phosphorus (P) and Potassium (K) in Climbing Beans (Phaseolus vulgaris L.) Grown in Northern Tanzania

  AUTHORS: George W. Mmbaga, Kelvin M. Mtei, Patrick A. Ndakidemi

  KEYWORDS: Variable Cost, Total Revenue, Biological Nitrogen Fixation, Nodulation, Marginal Rate of Return (MRR) and Marginal Net Return (MNR)

  JOURNAL NAME: Agricultural Sciences, Vol.6 No.8, August 17, 2015

  ABSTRACT: Both field and green house experiments were intended to investigate and evaluate the outcome of rhizobial inoculation supplemented with P and K on climbing beans production in northern Tanzania. The results obtained indicated that, inoculation using Rhizobium inoculants supplemented with fertilizers significantly (p ≤ 0.001) improved both vegetative and yield parameters of climbing beans varieties compared with control treatment. The economic analysis in rhizobium alone revealed a profit of US$ 2350 compared with control treatment with US$ 1558 profit, which was finally reflected in higher percentage increase over control and higher marginal rate of return (MRR). Thus, the use of Rhizobium inoculants supplemented with P and K increased climbing beans yield and the economic analysis performed based on total revenue and variable costs reflected an improvement in economic well being of a small hold farmer of northern Tanzania.