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DatoValore
TitleUse of Biochar to Improve the Sustainable Crop Production of Cauliflower (Brassica oleracea L.)
AbstractIn agriculture, biochar (B) application has been suggested as a green technology to reduce nitrate pollution from agricultural origins and improve crop yield. The agronomic impact of B use on soil has been extensively studied, while knowledge of its possible effects on horticultural cultivation is still scarce. A greenhouse experiment was conducted to evaluate the effect of using biochar in soils treated with two different rates of nitrogen fertilizers on soil properties and nitrogen (N) leachate. This study also investigated the vegetative parameters during the crop growing season of Brassica oleracea L. var. botrytis. Soil mesocosms were set up to test the following treatments: untreated/control (C); normal dose of N fertilizer (130 kg N ha-1) (ND); ND+B; high dose of N fertilizer (260 kg N ha-1) (HD); and HD+B. Principal component analysis and cluster analysis were exploited to assess biochar's ability to reduce nitrate leaching and enhance soil-vegetative properties. Biochar addition affected the soil chemical properties of the fertilized microcosms (ND and HD). Biochar increased the NH+4 content in HD soil and the NO-3 content in ND soil by 26 mg/L and 48.76 mg/L, respectively. The results showed that biochar application increased the marketable cauliflower yield. In ND+B and HD+B, the curd weight was 880.68 kg and 1097.60 kg, respectively. In addition, a small number of nitrogenous compounds in the leachate were quantified in experimental lines with the biochar. Therefore, biochar use improves the marketable yield of horticulture, mitigating the negative impacts associated with the mass use of N fertilizers in agriculture.
SourcePlants
KeywordsBrassica oleracea L. var. botrytisnitrogen fertilizationSoil propertiesBiocharPlant yield
JournalPlants
EditorMDPI, Basel, Svizzera
Year2022
TypeArticolo in rivista
DOI10.3390/plants11091182
AuthorsDaniela Losacco 1,2, Marina Tumolo 1,2, Pietro Cotugno 2, Natalia Leone 1, Carmine Massarelli 1, Stefano Convertini 3, Angelo Tursi 2, Vito Felice Uricchio 1 and Valeria Ancona 1
Text466851 2022 10.3390/plants11091182 Brassica oleracea L. var. botrytis nitrogen fertilization Soil properties Biochar Plant yield Use of Biochar to Improve the Sustainable Crop Production of Cauliflower Brassica oleracea L. Daniela Losacco 1,2, Marina Tumolo 1,2, Pietro Cotugno 2, Natalia Leone 1, Carmine Massarelli 1, Stefano Convertini 3, Angelo Tursi 2, Vito Felice Uricchio 1 and Valeria Ancona 1 1 Water Research Institute Italian National Research Council IRSA CNR , 70132 Bari, BA, Italy 2 Department of Biology, University of Bari, 70126 Bari, BA, Italy 3 ReAgri S.r.L, 74016 Massafra, TA, Italy In agriculture, biochar B application has been suggested as a green technology to reduce nitrate pollution from agricultural origins and improve crop yield. The agronomic impact of B use on soil has been extensively studied, while knowledge of its possible effects on horticultural cultivation is still scarce. A greenhouse experiment was conducted to evaluate the effect of using biochar in soils treated with two different rates of nitrogen fertilizers on soil properties and nitrogen N leachate. This study also investigated the vegetative parameters during the crop growing season of Brassica oleracea L. var. botrytis. Soil mesocosms were set up to test the following treatments untreated/control C ; normal dose of N fertilizer 130 kg N ha 1 ND ; ND B; high dose of N fertilizer 260 kg N ha 1 HD ; and HD B. Principal component analysis and cluster analysis were exploited to assess biochar s ability to reduce nitrate leaching and enhance soil vegetative properties. Biochar addition affected the soil chemical properties of the fertilized microcosms ND and HD . Biochar increased the NH 4 content in HD soil and the NO 3 content in ND soil by 26 mg/L and 48.76 mg/L, respectively. The results showed that biochar application increased the marketable cauliflower yield. In ND B and HD B, the curd weight was 880.68 kg and 1097.60 kg, respectively. In addition, a small number of nitrogenous compounds in the leachate were quantified in experimental lines with the biochar. Therefore, biochar use improves the marketable yield of horticulture, mitigating the negative impacts associated with the mass use of N fertilizers in agriculture. Published version https //doi.org/10.3390/plants11091182 Articolo in rivista MDPI 2223 7747 Plants Plants Plants Plants valeria.ancona ANCONA VALERIA marinatumolo TUMOLO MARINA danielalosacco LOSACCO DANIELA vitofelice.uricchio URICCHIO VITO FELICE carmine.massarelli MASSARELLI CARMINE DTA.AD002.439.001 Attuazione Direttiva 91/676/CEE relativa alla protezione delle acque dall inquinamento provocato dai nitrati provenienti da fonti agricole art. 92 del D. Lgs. 152/2006 Revisione delle Zone Vulnerabili da Nitrati di origine agricola e aggiornament