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All Journal International Journal of Social Service and Research Journal of Agricultural Economy and Technology Development
Pereira, Inacio Savio
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences

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The Influence of Doses of Rice Husk (Biochar) and Organic Liquid Fertiliser Types on the Growth and Production Yield of Tomatoes (Lycopersicum esculentum Mill) Napoleão, Marcelino da Costa; Pereira, Inacio Savio; Baptista da Cruz, Marquita Soares
International Journal of Social Service and Research Vol. 5 No. 5 (2025): International Journal of Social Service and Research
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/ijssr.v5i5.1227

Abstract

Tomatoes (Lycopersicum esculentum Mill) are essential horticultural crops valued for their high nutritional content and health benefits. With increasing market demand, there is a pressing need to adopt sustainable cultivation practices that enhance soil fertility and crop productivity. This study aims to evaluate the combined effects of rice husk biochar application and different types of liquid fertilizers on tomato yield, with the objective of identifying optimal treatments for improved cultivation. The research employed a Causalized Block Randomized Design (CBRD) with two factors: (1) rice husk application at four levels (0, 1, 2, and 3 tons/ha), and (2) liquid fertilizer type at three levels (no fertilizer, Lof Nachi 500 L/ha, and POC NASA 500 L/ha). Each treatment was replicated three times, resulting in 12 treatment combinations. Data were analyzed using Analysis of Variance (ANOVA). The highest tomato yield (10.76 tons/ha) was observed with the combination of 3 tons/ha rice husk and Lof Nachi 500 L/ha. In contrast, the lowest yield (5.70 tons/ha) occurred in the control treatment without any organic or liquid fertilizer. The results demonstrate a significant interaction between organic matter dosage and liquid fertilizer type in enhancing tomato productivity. This research offers practical implications for sustainable agricultural practices by promoting the integrated use of organic amendments and bio-based fertilizers, which can be particularly beneficial for smallholder farmers seeking cost-effective and eco-friendly production strategies.
Influence of planting time interval with dose of local organic liquid fertilizer (Lof-nachi) on growth and production of cowpea (Vigna unguiculata L.) in Ermera municipality Pereira, Marcos; da Costa Belo, Cecilio Alves; Pereira, Inácio Savio; Ninas Nabais, Claudino
Journal of Agricultural Economy and Technology Development Vol. 3 No. 1 (2026): Journal of Agricultural Economy and Technology Development
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jaetd.v3i1.50

Abstract

This study aimed to determine the optimal planting time interval and dose of local organic liquid fertilizer (Lof-nachi) for the growth and yield of cowpea (Vigna unguiculata L.) plants. The experiment was conducted over six months, from May to October 2024 in Fatuqueru Village, Railaco Administrative Post, Ermera municipality, located at an altitude of 880 m above sea level with an annual rainfall of approximately 2,000 mm. A split-plot experimental design (3 × 3 factorial) was employed, with two factors: planting time interval and dose of local liquid fertilizer. Results showed that productivity parameters were significantly influenced by the interaction between planting time interval and fertilizer dosage. Three yield parameters from the combined treatments showed significant differences. The number of pods and fruit length were significantly different (p < 0.01), while the overall yield parameter was highly significant (p < 0.001). The highest yield was obtained from the two-week planting interval combined with a fertilizer dose of 1,500 L/ha (I2A2), producing 3.51 t/ha. In contrast, the lowest yield was recorded in the control treatment (I0A0), with 1.47 t/ha. These findings highlight the importance of optimizing both planting schedules and organic fertilizer application to enhance cowpea productivity under local agro-ecological conditions.
Co-Authors Baptista da Cruz, Marquita Soares da Costa Belo, Cecilio Alves Napoleão, Marcelino da Costa Ninas Nabais, Claudino Pereira, Marcos