Macronutrients Uptake in Soybean as Affected by <i>Bradyrhizobium japonicum</i>Inoculation and Phosphorus (P) Supplements

• 作者: Eutropia V. Tairo Patrick A. Ndakidemi
• 来源期刊: 美国植物学期刊(英文)
• 学科: 医学
• 关键词: Legumes Plant Nutrients Nitrogen (N) PHOSPHORUS (P) Potassium (K) Calcium (Ca) Magnesium (Mg)
• 年，卷（期）: 2014,（4）
• 页码范围: 488-496
• 页数: 9页
• 分类号: R73

摘要

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.