Research Article
Effects of Municipal Phosphocomposts on Groundnut Growth, Yield and Residual Soil Phosphorous
Issue:
Volume 15, Issue 2, April 2026
Pages:
53-60
Received:
2 September 2024
Accepted:
25 September 2024
Published:
4 March 2026
Abstract: Smallholders crop production systems in Africa are constrained by a variety of factors: among them nutrient deficiency and low soil organic matter status. Groundnut (Arachis hypogea L) production in these areas is usually practiced with no artificial fertilisers or cattle manure as fertilizers are preferably used for staple crops production like maize. Organic composts from municipal landfills provide an alternative source of organic amendment for peri-urban groundnut production. Greenhouse and field studies were conducted during the 2010-11 season to determine whether municipal phosphocomposts can increase groundnut productivity as measured by dry matter, P uptake and yield. The field studies were carried out at two sites, namely Africa University farm and Nyamazura, both in Manicaland province of Zimbabwe. The studies were carried out during the 2010/2011 seasons. Municipal phosphocomposts used in the experiment were made from sewage sludge (SL), vegetable vending waste (VW) and wood processing waste (WW) collected from various sites in the city of Mutare. The wastes were composted with Zimbabwe (Dorowa) phosphate rock (DPR) and sulphur for a period of 56 days before being used for the experiments. Application of the three-municipal organic phosphocomposts produced comparable dry matter with inorganic fertilisers (SSP). Addition of sewage sludge/DPR composts improved dry matter of groundnuts. Leaf P and residual P2O5 were significantly (P<0.05) higher with organic amendments than with other soil ameliorants, except for SSP. The amount of residual phosphorous from sewage sludge compost amended plots was enough to support a succeeding crop of maize (>30 ppm resin extractable). Municipal composts significantly (P<0.001) improved groundnut pod yield compared to control and sole DPR. The study showed that the use of municipal phosphocompost is beneficial in improving groundnut nutrition and productivity. They can therefore be used for groundnut production in areas where soil nutrient sources are scarce and have potential for building phosphorous stocks. Apart from increasing current crop growth, the composts can also help build soil organic matter.
Abstract: Smallholders crop production systems in Africa are constrained by a variety of factors: among them nutrient deficiency and low soil organic matter status. Groundnut (Arachis hypogea L) production in these areas is usually practiced with no artificial fertilisers or cattle manure as fertilizers are preferably used for staple crops production like ma...
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Research Article
The Relationship Between Job Satisfaction and the Performance of Agricultural Extension Workers:
A Perspective in a Changing World
Jasim Mohammed Saleh*
,
Adnan Ibrahim Khamis,
Roaa Mohammed Hamid,
Ahmed Hamdan Lafta,
Ehab Jabbar Aldabbagh
Issue:
Volume 15, Issue 2, April 2026
Pages:
61-66
Received:
22 January 2026
Accepted:
9 February 2026
Published:
5 March 2026
Abstract: In today’s dynamic organizational landscape, human behavior has grown increasingly complex and multifaceted. This article seeks to address a gap in the existing literature on organizational behavior, particularly concerning employee performance across diverse work environments and varying levels of job satisfaction. By examining the fundamental concepts of job satisfaction and performance, as well as their interplay, this study aims to enrich the current knowledge in organizational behavior and human resource development. Furthermore, the paper provides insights to assist decision-makers in formulating clear policies and strategies that foster motivation, innovation, and a positive organizational culture. By prioritizing employee satisfaction, challenge, and collaborative relationships, organizations can cultivate an environment that not only attracts top talent but also encourages innovative behaviors. Such strategies are essential for addressing contemporary workplace challenges and sustaining long-term success. That study demonstrated that a work environment characterized by significant autonomy and supportive relationships among colleagues, supervisors, and subordinates leads to higher levels of worker satisfaction. Consequently, subsequent investigation has focused extensively on how employees' assessments of their own job performance and their workplace relationships influence their overall job satisfaction. Through performance evaluation, strengths and weaknesses can be identified and advance plans can be made. Good performance is straight replicated in business results, which improves the institution's standing in the market.
Abstract: In today’s dynamic organizational landscape, human behavior has grown increasingly complex and multifaceted. This article seeks to address a gap in the existing literature on organizational behavior, particularly concerning employee performance across diverse work environments and varying levels of job satisfaction. By examining the fundamental con...
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