Short-term effect of three tillage and two soil conservative practices in the soil health and eggplant production in a Mollisol

dc.contributor.advisor Dumas Rodríguez, José A. Guadalupe Rivera, Alexandra M. College of Agricultural Sciences
dc.contributor.committee Chong Núñez, Joaquín A.
dc.contributor.committee Snyder Sevit, Victor
dc.contributor.department Department of Agro-Environmental Sciences
dc.contributor.representative Rúa de la Asunción, Armando 2024-04-17T19:25:15Z 2024-04-17T19:25:15Z 2024-04-09
dc.description.abstract Intensive agricultural production can lead to soil health depletion, which can be reduced using conservation practices such as minimum tillage and the incorporation of organic matter. Contrary to conventional tillage practices, conservation tillage leaves at least 30% of crop residue on the soil surface, which helps to minimize soil properties disruption. This study aimed to assess the soil health effect of incorporating biochar saturated with effective microorganisms on the Mollisols-Jacaguas treated with three cover cycles using the combination of four cover crops with three soil tillage treatments, Conventional Plow (CP), Spader and Keyline. The results of this study indicated that incorporating the plant residues of four CC cycles with Keyline tillage had a significant effect on the soil health within the short-term. The interactions of biochar incorporation with CC and tillage treatments had no significant effect on soil pH, LOC, PLFA and Saturated hydraulic conductivity because the small amount of biochar applied (<0.3%) was not sufficient to affect the above-mentioned soil properties at the short-term.
dc.description.abstract La producción agrícola intensiva puede provocar el deterioro de la salud del suelo, lo cual pudiera minimizarse con el uso de prácticas de conservación como la labranza minima y la incorporación de cultivos de cobertura. El uso de la labranza de conservación deja al menos el 30% de los residuos de los cultivos en la superficie del suelo, lo que ayuda a minimizar la alteración de las propiedades del suelo, al contrario de las prácticas de labranza convencionales. Este estudio tuvo como objetivo evaluar el efecto sobre la salud del suelo al incorporar biocarbón saturado con microorganismos efectivos en un Molisol tratado con tres ciclos de cobertura utilizando la combinación de cuatro cultivos de cobertura con tres tratamientos de labranza del suelo, Arado Convencional (AP), Spader y Keyline. Los resultados de este estudio indican que la incorporación de los residuos vegetales de cuatro ciclos de CC con labranza Keyline tuvo un efecto significativo en la salud del suelo a corto plazo. Las interacciones de la incorporación de biocarbón con CC y tratamientos de labranza no tuvieron efectos significativos sobre el pH, LOC, PLFA y conductividad hidráulica saturada porque la poca cantidad de biocarbón aplicada (<0.3%) no fue suficiente para afectar las propiedades del suelo ya mencionadas a corto plazo.
dc.description.graduationSemester Spring
dc.description.graduationYear 2024
dc.description.sponsorship This project was carried out thanks to the support of USDA National Institute of Food and Agriculture project titled “Increasing the Resilience of Agroecosystems in Puerto Rico to Climate Change by Combining Soil Conservation and Rainwater Harvesting Practices” (#201869002-27936).
dc.language.iso en
dc.rights Attribution-NonCommercial 4.0 International *
dc.rights.holder © 2024 Alexandra M. Guadalupe Rivera
dc.rights.uri *
dc.subject Cover crops
dc.subject Conservation tillage
dc.subject Biochar
dc.subject Soil health
dc.title Short-term effect of three tillage and two soil conservative practices in the soil health and eggplant production in a Mollisol
dc.type Thesis
dspace.entity.type Publication Soil Sciences M.S.