Mwaura, M. M.Munyiri, S. W.Isutsa, D. K.2025-05-202025-05-202022Mwaura, M. M., Isutsa, D. K., & Munyiri, S. W. (2022). PRODUCTION OF MINERAL NUTRIENT-RICH MULTIPURPOSE PUMPKIN LEAFY VEGETABLES USING INTEGRATED NITROGEN, MULCH AND GA3. Journal of Environmental Sustainability Advancement Research, 8, 29-36.https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Production+of+Mineral+Nutrient-Rich+Multipurpose+Pumpkin+Fruits+using+Combined+Nitrogen%2C+Mulch+and+Gibberellic+Acid&btnG=#d=gs_cit&t=1747724419269&u=%2Fscholar%3Fq%3Dinfo%3ARc1cdQ_2j8IJ%3Ascholar.google.com%2F%26output%3Dcite%26scirp%3D0%26hl%3Denhttps://repository.chuka.ac.ke/handle/123456789/18312Research ArticleThe present study assessed effectsof nitrogen, mulch and gibberellic acid(GA3) onminerals and metabolites in pumpkin fruits. Nitrogen(0, 50, 100 and 150 kg N/ha), three mulches (none,unpainted,black-painted rice straws) and GA3(0, 40 and 80 mg/L) were used in randomized complete block design, replicated three times in two seasons,and each plant occupied2mx2m space. Post-harvest data values were subjected to analysis of variance using SAS and means were separated using the least significant difference test (α=0.05).Nitrogen positively and significantly affected N, P and Mg. It negatively and significantly affected K, beta-carotene and TSS. Mulch positively and significantly influenced P, Mg and beta-carotene, but not TSS. GA3 positively and significantly affected Mg and beta-carotene, while it negatively and significantly affected N, P, and K. There was consistent significant effect of combined N, mulch and GA3on N, P, K, Mg and beta- carotene (highest 29 ppm was for N3M0GA0).Thus nitrogen, mulch, GA3, alone or combined consistently enhance mineral nutrients and metabolites in pumpkin fruits.enAfrican Leafy VegetablesFruit QualityMineral NutrientsNutritional ValueArticle