Soil Type, pH, Organic Matter, Moisture, Nitrogen, Phosphorous, Potassium Levels In Relation To Leaf Traits in Brassica oleracea var. Capitata, Lactuca sativa var. capitata ‘Iceberg’, Solanum tuberosum, and Daucus

Soil Type, pH, Organic Matter, Moisture, Nitrogen, Phosphorous, Potassium Levels In Relation To Leaf Traits in Brassica oleracea var. Capitata, Lactuca sativa var. capitata ‘Iceberg’, Solanum tuberosum, and Daucus | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 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Capitata, Lactuca sativa var. capitata ‘Iceberg’, Solanum tuberosum, and Daucus Author : Brian Ohiaeri 0009-0000-5586-2263 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.176281469.99532013/v2 176 views 74 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Cerro Punta, Panama’s primary agricultural region, lacks comprehensive soil research despite its economic importance. This study investigated relationships between soil properties (organic matter, N, P, K, moisture, pH, texture) and vegetative traits (leaf count, canopy height, leaf color) in cabbage, lettuce, potato, and carrot crops. Forty 4×4 m plots were established across 1,989–2,600 m elevation under heavy rainfall (105 mm), moderate temperatures (17–21°C), and high humidity (85–95%). Results revealed high organic matter (20–60%) and slightly acidic pH (6.0–6.9) across all sites. Significant positive correlations emerged between potassium and potato plant count (r = 0.70, p = 0.02) and between silt content and lettuce plant count (r = 0.87, p = 0.001), while sand content negatively correlated with lettuce count. No significant relationships were found between soil variables and leaf count, canopy height, or leaf color for any crop, rejecting all hypotheses. Despite limited statistical significance, field observations indicated healthy crop growth, with soil conditions meeting standard requirements. This research provides baseline data for sustainable soil management in this understudied tropical highland agricultural system. Supplementary Material File (panamapaper.pdf) Download 262.57 KB Information & Authors Information Version history V1 Version 1 10 November 2025 V2 Version 2 12 November 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords andisols cerro punta leaf traits panama plant-soil relationships plants soil soil moisture soil organic matter soil organic matter (som) soil ph soil type soil-plant relationships sustainable argiculture tropical agriculture Authors Affiliations Brian Ohiaeri 0009-0000-5586-2263 [email protected] University of San Francisco View all articles by this author Metrics & Citations Metrics Article Usage 176 views 74 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Brian Ohiaeri. Soil Type, pH, Organic Matter, Moisture, Nitrogen, Phosphorous, Potassium Levels In Relation To Leaf Traits in Brassica oleracea var. Capitata, Lactuca sativa var. capitata ‘Iceberg’, Solanum tuberosum, and Daucus. Authorea . 12 November 2025. DOI: https://doi.org/10.22541/au.176281469.99532013/v2 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. 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