Leafy vegetables are part of natural resources traditionally harvested from forests in Benin. Some of these wild plants foods have been introduced in the small scale production system. The low productivity and the increasing demand for such products urged to use fertilizers. However, the impact of such practices on the nutritional properties of these leaves was poorly documented. In this study Sesamum radiatum, Ceratotheca sesamoïdes and Justicia tenella were cultivated using NPK, cowpat and mixture of NPK plus cowpat. Leaves harvested at 6, 9, 10, 12 or 14 weeks after transplanting were analyzed for proximate composition. Protein content ranged from 17.2 to 33.8 g/100 g DW; ash from 7.7 to 20.4 g/100 g; fat from 1.2 to 7.3 g/100 g, fiber from 5.6 to 13.1 g/100 g and polyphenols content from 0.24 to 1.33 g GAE/100 g (DW). Significant effects of species, fertilizer and cutting time were evidenced. Whereas ash content increased by 1 to 25.8% ratio in fertilized S. radiatum leaves, it showed a downward trend (-1 to -22%) during the two first cutting times of C. sesamoides followed by an upward trend (12.7 to 14.3%) at the last cutting time, in comparison to the non fertilized leaves.
The aim of this research was to find whether Sesamum radiatum growth requires cow manure and nitrogen-phosphorus-potassium (NPK) fertilizers. We examined the survey vegetable over two growing seasons on ferruginous soil: from June to December in 2009 (Season 1) and 2010 (Season 2). We used cow manure (0, 20, 30 and 40 t. ha-1) and NPK 10:10:20 (0, 50, 100 and 150 kg. ha-1) during season 1 and no amendments during season 2 to determine if application of amendments would carry through to a second season as partially described by effects on soil and yield. A randomized complete block designed through three replications is performed. Parameters such as pH, Organic carbon, Nitrogen, phosphorus, exchangeable bases (Ca 2+ , K + , Mg 2+), cation exchange capacity, base saturation and yields were identified. Cow manure significantly affected height, leaves yields while NPK had a lowly significant effect on total yield, stems yield and base saturation and highly significant effect on leaves yields, sum of bases and cation exchange capacity. Both cow manure and NPK fertilizers significantly affected magnesium and organic carbon. 20 t•ha-1 of cow manure and 100 kg. ha-1 of NPK produced the best yield in the second season and our results opened up encouraging perspectives in using magnesium, organic or inorganic fertilizers for sesame growth. The outcomes provided important prerequisite for effective cultivation of the survey leafy vegetable and it is expected to be applied in research for cultivars suitable to modern planting systems and food purposes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.