Agronomic Performance of Acaí (Euterpe oleracea) Using Organic Compost Associated with Dolomitic Limestone

Agronomic Performance of Acaí (Euterpe oleracea) Using Organic Compost Associated with Dolomitic Limestone | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Agronomic Performance of Acaí ( Euterpe oleracea ) Using Organic Compost Associated with Dolomitic Limestone Valdeci Junior Fonseca Pinheiro, Antônia Benedita da Silva Bronze, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7861373/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Objectives This study aimed to evaluate the effect of compost doses associated with dolomitic limestone on the biometry, nutritional, and physiological state of Euterpe oleracea under organic cultivation, contributing to sustainability in the Amazon. Methods The experiment was conducted in Santo Antônio do Tauá/PA, in the community of Campo Limpo, using a randomized block design in a 7 × 2 factorial scheme. Factor 1 comprised six compost doses (2, 4, 6, 8, 10, and 12 kg) and factor 2 included the presence or absence of liming. The control received no fertilization. In total, 14 treatments with six replicates resulted in 84 experimental units, each containing two BRS Pai d’égua Euterpe oleracea plants. Biometric, nutritional, and physiological variables were evaluated. Results Compost application, particularly at 8–10 kg combined with liming, provided the best results. Organic fertilization increased stipe height by 41.66%, circumference by 29.71%, circumference at breast height by 16.13%, and number of leaves by 11.01%. It improved nutrient levels (N > S > Ca > K > P > Mg; B > Mn > Fe), enhanced relative chlorophyll content by 38.84%, and positively affected CO₂ assimilation, stomatal conductance, transpiration, intercellular CO₂ concentration, and water use efficiency. Conclusions The combination of 8–10 kg of compost per plant with dolomitic limestone promotes better biometric, nutritional, and physiological performance of Euterpe oleracea under organic management, supporting sustainable açaí production in the Amazon. composting corrective Practice fruit growing mineral Nutrition Full Text Supplementary Files HighlightsValdeci.docx Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Limestone\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"composting, corrective Practice, fruit growing, mineral Nutrition","lastPublishedDoi":"10.21203/rs.3.rs-7861373/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7861373/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003ch2\u003eObjectives\u003c/h2\u003e\u003cp\u003eThis study aimed to evaluate the effect of compost doses associated with dolomitic limestone on the biometry, nutritional, and physiological state of Euterpe oleracea under organic cultivation, contributing to sustainability in the Amazon.\u003c/p\u003e\u003ch2\u003eMethods\u003c/h2\u003e\u003cp\u003eThe experiment was conducted in Santo Ant\u0026ocirc;nio do Tau\u0026aacute;/PA, in the community of Campo Limpo, using a randomized block design in a 7 \u0026times; 2 factorial scheme. Factor 1 comprised six compost doses (2, 4, 6, 8, 10, and 12 kg) and factor 2 included the presence or absence of liming. The control received no fertilization. In total, 14 treatments with six replicates resulted in 84 experimental units, each containing two BRS Pai d\u0026rsquo;\u0026eacute;gua Euterpe oleracea plants. Biometric, nutritional, and physiological variables were evaluated.\u003c/p\u003e\u003ch2\u003eResults\u003c/h2\u003e\u003cp\u003eCompost application, particularly at 8\u0026ndash;10 kg combined with liming, provided the best results. Organic fertilization increased stipe height by 41.66%, circumference by 29.71%, circumference at breast height by 16.13%, and number of leaves by 11.01%. It improved nutrient levels (N\u0026thinsp;\u0026gt;\u0026thinsp;S\u0026thinsp;\u0026gt;\u0026thinsp;Ca\u0026thinsp;\u0026gt;\u0026thinsp;K\u0026thinsp;\u0026gt;\u0026thinsp;P\u0026thinsp;\u0026gt;\u0026thinsp;Mg; B\u0026thinsp;\u0026gt;\u0026thinsp;Mn\u0026thinsp;\u0026gt;\u0026thinsp;Fe), enhanced relative chlorophyll content by 38.84%, and positively affected CO₂ assimilation, stomatal conductance, transpiration, intercellular CO₂ concentration, and water use efficiency.\u003c/p\u003e\u003ch2\u003eConclusions\u003c/h2\u003e\u003cp\u003eThe combination of 8\u0026ndash;10 kg of compost per plant with dolomitic limestone promotes better biometric, nutritional, and physiological performance of Euterpe oleracea under organic management, supporting sustainable a\u0026ccedil;a\u0026iacute; production in the Amazon.\u003c/p\u003e","manuscriptTitle":"Agronomic Performance of Acaí (Euterpe oleracea) Using Organic Compost Associated with Dolomitic Limestone","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-11-14 19:40:50","doi":"10.21203/rs.3.rs-7861373/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"bbb90a73-cccc-4d16-a4f2-45a54ebb8edf","owner":[],"postedDate":"November 14th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-02-18T16:48:38+00:00","versionOfRecord":[],"versionCreatedAt":"2025-11-14 19:40:50","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7861373","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7861373","identity":"rs-7861373","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}