EFFECT OF INORGANIC FERTILIZERS ON SOIL FERTILITY AND MICROBIAL BIOMASS IN THE RHIZOSPHERE OF SOYBEAN

Fidelis Vershima Aberagi (), Chinyere Blessing Okebalama and Charles Livinus Anija Asadu
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Fidelis Vershima Aberagi: Faculty of Agriculture, Department of Soil Science, University of Calabar, PMB 1115, Calabar, Cross River State, Nigeria
Chinyere Blessing Okebalama: Faculty of Agriculture, Department of Soil Science, University of Nigeria Nsukka, 410001 Nigeria.
Charles Livinus Anija Asadu: Faculty of Agriculture, Department of Soil Science, University of Nigeria Nsukka, 410001 Nigeria.

Journal of Wastes and Biomass Management (JWBM), 2024, vol. 6, issue 1, 15-20

Abstract: Soil microbial biomass is an important source of nutrients for crops. However, the response of microbial biomass- C (MBC) and -N (MBN) to various inorganic fertilizers in legume cultivation is lacking. A two-year impact of inorganic fertilizers [urea, single superphosphate (SSP), N15P15K15] addition on soil fertility and microbial biomass was determined in the rhizosphere of soybean (Glycine max) grown in an Ultisol. Treatments were laid out in randomized complete block design in triplicates. Rhizosphere soils from soybean plants was collected at 30, 60, and 90 days after sowing (DAS). Results showed that the soil had a sandy loam texture, moderately acid (pH 5.2), low in organic matter, total nitrogen, exchangeable bases and CEC, but moderate in available phosphorus. In both cropping years, the retention of these soil chemical parameters was significantly (p

Keywords: Urea; Single Super Phosphate; NPK fertilizer; soil rhizosphere; soil chemical properties (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbjwbm:v:6:y:2024:i:1:p:15-20

DOI: 10.26480/jwbm.01.2024.15.20

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