Assessment of Some Organic and a Mineral Fertilizer on the Yield and Profitability of Tomato (
Lycopersicum
esculentum
Mill.) in an Oxysol of West Cameroon
Jul 2026· Journal of Plant Sciences· 0 citations· 17 references
Abstract
The consumption of market garden products contributes to the food and nutritional security of the world's populations. Among these products, tomato occupies a prominent place. Meanwhile, the excessive use of synthetic fertilizers to produce tomatoes reduces the productive potential of soils. Due to this problem, the present study was conducted in West Cameroon, aiming to reduce the use of chemical inputs for sustainable tomato production through the use of organic input. Thus, five treatments (: T0 = control; T1 = 100% NET EDEN organic fertilizer; T2 = 100% poultry manure; T3 = 50% NET EDEN organic fertilizer + 50% poultry manure; T4 = 100% mineral fertilizer) were arranged in a completely randomized block design (RCBD) with three replications. The study was carried out from March 1 to June 26, 2024. The results revealed that the treatment with mineral fertilizer and the treatment with Net Eden organic fertilizer + chickens manure led to 26.28±5.50 t ha
-1
and 26.10±3.51 t ha
-1
respectively. These yields T4; T3 are significantly different (P<0.05) from the yields obtained with the other treatments. The economic analysis of fertilization using the value-cost ratio (VCR) showed that only the treatment based on mineral fertilizer T4 and the treatment with Net Eden+manure T3 should be popularized among farmers/producers. Thus, the use of organic fertilizers for tomato production has agronomic, ecological, and economic advantages. However, similar studies in other agroecological zones are needed.
In the face of growing demand for vegetable crops, particularly solanaceous species, the excessive use of synthetic fertilisers and the degradation of arable soils are major constraints on agricultural production in West African urban and peri-urban areas. Soilless cultivation is therefore gaining importance as an alternative production system that is less dependent on soil quality. This study compared the effects of four liquid fertilisers - two organic (a poultry manure extract and a manure-based fertiliser) and two mineral fertilisers (Nutrigofol 8-8-8 and NPK 12-22-22, with the latter serving as the control) - on the growth and yield of pepper grown under soilless conditions, with the broader aim of identifying nutrient solutions that could reduce growers’ dependence on chemical fertilisers. The trial followed a randomised complete block design with four replicates. Treatment had a significant effect on most growth and yield parameters (p < 0.001). The organic fertilisers, particularly the poultry manure extract, produced significantly higher values than the mineral fertilisers for floral bud number, fruit number, fruit mass, and estimated yield. Estimated yield reached 5.11 t ha⁻¹ with the poultry manure extract, followed by the manure-based fertiliser (3.69 t ha⁻¹), Nutrigofol 8-8-8 (2.81 t ha⁻¹), and NPK 12-22-22 (2.64 t ha⁻¹). Because no unfertilised control was included, these results describe the relative performance of the four fertilisers rather than their absolute agronomic efficiency. Within this comparative scope, the findings indicate that organic nutrient solutions derived from locally available livestock waste can support pepper productivity in soilless systems at least as well as, and for several parameters better than, the mineral fertilisers tested. Valorising such organic waste as low-cost biofertilisers could contribute to more affordable and resilient vegetable production for expanding West African cities, provided these trends are confirmed against an unfertilised control and under real production conditions.
Gnimassoun Kawojou Edwige-Gwladys, B. B. Emile, Brou A. Carelle Eudoxie· Journal of biology and natur...· 0 citations
Tomato (Solanum lycopersicum L.) is one of the important vegetables crop grown worldwide due to its use in a number of dishes and high nutritive value. Most of the vegetables are consumed in fresh conditions but indiscriminate use of chemical fertilizers of pesticides in crop production leads toxic effect in produce which may cause various kinds of health hazards. Hence there is need to produce food free of contaminants through the use of organic inputs. Viewing these facts, a field experiment was conducted during the 2021-22 to analyze the effect of organic manures on vegetative growth and flowering of tomato cv. Pusa Ruby. Farmyard manure (FYM), vermicompost and poultry manures were applied as sole and in combinations to analyze the effect of different organic manures. The treatments applied for the research purpose were seven in number that is T1 (Control), T2 (FYM 24.0 t/ha), T3 (Vermicompost 6.0 t/ha), T4 (Poultry manure 2.0 t/ha), T5 (FYM 12.0 t/ha + Vermicompost 3.0 t/ha), T6 (FYM 12.0 t/ha + Poultry manure 1.0 t/ha), T7 (Vermicompost 3.0 t/ha + Poultry manure 1.0 t/ha). The present investigation clearly indicate that combined soil application of Vermicompost 3.0 t/ha + Poultry manure 1.0 t/ha (T7) gave the better effect on vegetative parameters viz. plant height (85.03 cm), number of branches per plant (8.4), number of leaves per plant (41.77), number of flowers per cluster (12.3) as compared to all other treatments. However, FYM and Poultry manure also significantly increase vegetative growth of tomato.
Pulkit, P. Dev, J. Kumar et al.· Progressive Agriculture· 0 citations
Commercial chemical fertilizers are heavily relied upon to boost crop yields, but their rising costs and negative environmental impacts—such as soil degradation and water contamination—highlight the critical need for sustainable alternatives. This study evaluated the effectiveness of a liquid natural fertilizer formulated from organic household wastes, including banana peels, orange peels, eggshells, onion peels, rice wash water, and molasses, on the growth performance of chili (Capsicum annuum L.) plants. Utilizing an experimental research design, chili seedlings were divided into four groups to compare the organic formulation (at 5 mL and 10 mL concentrations) against a commercial synthetic fertilizer and a water-only control group. The plants were monitored over an eight-day treatment period using two primary metrics: plant height and leaf count. The results demonstrated that the organic formulation is highly effective in promoting key growth parameters. In terms of plant height, the water-only control group achieved the highest average height of 8.6 inches, followed closely by the 10 mL organic fertilizer group at 8.1 inches, while both the chemical fertilizer and 5 mL organic treatments recorded the shortest height at 7.7 inches. Conversely, in the metric of leaf production, the 10 mL organic fertilizer concentration demonstrated the strongest performance, yielding the highest average of 10.6 leaves. The water-only and 5 mL organic groups resulted in 8.4 leaves, whereas the chemical fertilizer group performed the worst, recording the lowest average of 4.2 leaves. These findings confirm that the homemade organic fertilizer can rival and surpass commercial options, particularly in supporting leaf growth. The study concludes that recycling household kitchen waste into a liquid biofertilizer provides a practical, eco-friendly, and cost-effective solution for sustainable urban agriculture.
Ruby Angeline C. Paredes, J. P. Caronan, Benidick M. Pelitina et al.· International Journal of Sma...· 0 citations
The Macunde bean (Vigna unguiculata L.) is a strategic staple food in the diet of the Angolan population, playing a crucial role in food security. This study aimed to demonstrate to producers that, given the scarcity and high cost of mineral fertilizers, satisfactory grain yields can be achieved through the partial replacement of these inputs with locally available organic fertilizers (cattle manure, chicken manure, and plant residue). A field experiment was therefore conducted in Camama, Luanda, using a randomized complete block design (RCBD) with eight treatments and three replications: T1 (plant residue + 100 kg ha⁻¹ NPK); T2 (cattle manure + 100 kg ha⁻¹ NPK); T3 (chicken manure + 100 kg ha⁻¹ NPK); T4 (plant residue only); T5 (cattle manure only); T6 (chicken manure only); T7 (200 kg ha⁻¹ NPK — reference fertilization); and T8 (control, no fertilization). The experiment was conducted on a sandy-textured Arenosol (90% sand, 5% silt, and 5% clay) characterized by low organic matter content (1.54%), a pH in H₂O of 5.52, and a very low available phosphorus content (2.51 mg dm⁻³). The agronomic data collected were subjected to analysis of variance (ANOVA), and means were grouped using the Scott–Knott test at 5% significance. The results showed that treatments combining organic fertilizer with half the NPK dose (T1, T2, and T3) did not differ statistically from the exclusive mineral fertilization reference (T7). This synergistic behavior was evident in grain yield, which exceeded 1.2 t ha⁻¹ in the combinations with cattle and chicken manure, as well as in the other parameters evaluated (plant height, number of pods, and shoot dry matter). It is concluded that integrated organomineral management represents a viable agronomic and economic strategy for Angolan family farmers, reducing production costs without compromising crop productivity.
Santos João da Costa Quizembe, José Paulo Kai, Domingos Bongue et al.· Brazilian Journal of Develop...· 0 citations
Agriculture plays a key role in global food production, whereas organic waste management remains an important environmental challenge. Organic residue-derived compost represents a sustainable strategy for nutrient recycling, soil fertility improvement, and reduced reliance on synthetic fertilizers in horticultural systems. This study systematically reviewed the scientific literature on the application of compost in cherry tomato (Solanum lycopersicum var. cerasiforme) cultivation to evaluate its effects on agronomic performance and production systems. A database search from 2004 to July 2025 identified 86 studies that met the predefined eligibility criteria. The analysis showed an increasing trend in research over the last two decades, with publications peaking in 2021. Most studies were conducted in Latin America, particularly in Colombia, Mexico, and Brazil, highlighting the relevance of the cherry tomato crop. The application of compost was associated with improved plant growth, nutrient availability, and crop productivity. The production cycles ranged from 37 to 220 days, with shorter cycles commonly observed in tropical environments. Rice husk compost is among the most frequently used organic amendments. Overall, compost represents an effective strategy to enhance agronomic performance and promote sustainable cherry tomato production worldwide.
Andrés Reyes Rodríguez, Silvia A. Quijano, S. Arango-Varela et al.· Applied Sciences· 0 citations
Aim: This study evaluated the comparative effects of organic fertilizer (poultry manure) and inorganic fertilizer (NPK 15-15-15) on the growth and yield of maize (Zea mays L.) in Ogbomosho, Oyo State, Nigeria.
Methodology: The experiment was conducted using a Randomised Complete Block Design (RCBD) with three treatments: poultry manure, NPK 15-15-15 fertilizer, and a control with no fertilizer application, each replicated five times. The growth parameters measured included plant height and number of leaves, while yield per plant was assessed at harvest. The data collected were subjected to analysis of variance (ANOVA) at the 5% probability level.
Results: Fertilizer application significantly (P < 0.05) improved maize growth and yield compared with the control. Inorganic fertilizer recorded the highest mean plant height (93.0 cm), number of leaves (17.0), and yield per plant (1.91 kg), followed by organic fertilizer (86.2 cm, 15.2 leaves, and 1.36 kg), while the control recorded the lowest values. The ANOVA results indicated significant differences among treatments for all measured parameters.
Conclusion: Both organic and inorganic fertilizers significantly improved maize growth and yield under the conditions of this study. Although NPK 15-15-15 produced higher growth and yield values, poultry manure remains an important nutrient source for improving soil quality and supporting sustainable crop production. An integrated nutrient management approach that combines organic and inorganic fertilizers is recommended to enhance maize productivity while maintaining long-term soil fertility in the study area.
Adebowale Eniola Yusuf· Asian Journal of Research in...· 0 citations
