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.
Highlights
Crop plants need food for their growth and development
B. japonicum inoculation of soybean plants significantly increased root uptake of some of the macronutrient measured in field and glasshouse relative to the control treatments (Table 2)
Of B. japonicum significantly increased the uptake of N and P in the glasshouse, while in the field experiment the uptake of N, P, K, Ca and Mg were significantly increased in shoots relative to the control treatment (Table 3)
Summary
Crop plants need food for their growth and development. They require essential elements of which carbon, hydrogen, and oxygen are derived from the atmosphere and soil water [1]. Each plant nutrient is needed in different amounts by the plant, and varies in how mobile it is within the plant. Mineral elements such as nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, zinc, manganese, copper, boron, molybdenum, and chlorine are supplied either from soil minerals and soil organic matter or by organic or inorganic fertilizers [3]. The demand for N in a deficient soil is normally achieved by the use of chemical fertilizers. The high cost of mineral N fertilizers may be counteracted by other alternative means to meet the N demand through the use of beneficial bacteria such as Rhizobium [6]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
