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J. Murphy and J. P. Rilley, “A Modified Single Solution Method for the Determination of Phosphate in Natural Water,” Analytical Chemistry Acta, Vol. 27, No. C, 1962, pp. 31-36.

has been cited by the following article:

• TITLE: Macronutrients Uptake in Soybean as Affected by Bradyrhizobium japonicum Inoculation and Phosphorus (P) Supplements

  AUTHORS: Eutropia V. Tairo, Patrick A. Ndakidemi

  KEYWORDS: Legumes; Plant Nutrients; Nitrogen (N); Phosphorus (P); Potassium (K); Calcium (Ca); Magnesium (Mg)

  JOURNAL NAME: American Journal of Plant Sciences, Vol.5 No.4, February 26, 2014

  ABSTRACT: Field and glasshouse experiments were conducted to study the effect of B. japonicum inoculation and phosphorus supplementation on macronutrient uptake by soybean. The treatments consisted of B. japonicum inoculation (with & without), phosphorus supplementation at the levels of 0, 20, 40 and 80 kg P·ha-1. Both treatments were replicated four times in a split plot design. The macronutrients considered were N, P, K, Ca and Mg. Results showed that inoculation with B. japonicum significantly contribute to the uptake of N, P, K, Ca and Mg in roots, shoots, pods and the whole soybean plant. Likewise, phosphorus supplementation significantly enhanced the uptake of N, P, K, Ca and Mg in roots, shoots, pods and the whole plant. The use of effective strains of rhizobia and P supplementation was an effective way of enhancing the growth of soybean, eventually the uptake of macronutrients in plant organs.