Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer
The use of microalgae as natural biofertilizer in horticulture has recently been reported, while the use of humic substances is widespread. However, the combined use of microalgae with humic substances applied to plant leaves is still unexploited. Thus, the objective of this work was to combine fulv...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2022-08-01
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| Series: | Bioscience Journal |
| Subjects: | |
| Online Access: | https://seer.ufu.br/index.php/biosciencejournal/article/view/58854 |
| _version_ | 1811320487433732096 |
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| author | Luiz Gabriel Gemin Átila Francisco Mógor Juliana de Oliveira Amatussi Gabriel Bochetti de Lara Gilda Mógor |
| author_facet | Luiz Gabriel Gemin Átila Francisco Mógor Juliana de Oliveira Amatussi Gabriel Bochetti de Lara Gilda Mógor |
| author_sort | Luiz Gabriel Gemin |
| collection | DOAJ |
| description | The use of microalgae as natural biofertilizer in horticulture has recently been reported, while the use of humic substances is widespread. However, the combined use of microalgae with humic substances applied to plant leaves is still unexploited. Thus, the objective of this work was to combine fulvic acid (FA) with the Scenedesmus subspicatus microalga biomass (SC) as a natural biofertilizer applied via leaf in two onion cultivars in organic system. Four experiments were conducted: i) bioassays to verify the bioactive effect of FA, SC and combinations using the Vigna radiata model plant; ii) greenhouse pot experiment with foliar applications of FA, SC and combination in two onion cultivars; iii) field experiment in organic system with foliar applications of FA, SC and combination in two onion cultivars; and iv) onion bulb storage experiment. The bioactive effect of SC, FA and their combinations was identified by promoting changes in root growth of V. radiata. In pots, treatments containing FA, SC and combination promoted increase in fresh and dry leaf mass. The foliar application of FA, SC and combination promoted an increase in field bulb productivity, reduced mass loss in stored bulbs and increased carbohydrate, amino acid and protein contents in onion bulbs. |
| first_indexed | 2024-04-13T13:00:23Z |
| format | Article |
| id | doaj.art-3306a54f26bb47a38c403cdd98f60107 |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-04-13T13:00:23Z |
| publishDate | 2022-08-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-3306a54f26bb47a38c403cdd98f601072022-12-22T02:45:56ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632022-08-0138e38045e3804510.14393/BJ-v38n0a2022-5885431906Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizerLuiz Gabriel Gemin0https://orcid.org/0000-0002-9940-8334Átila Francisco Mógor1https://orcid.org/0000-0003-4199-9079Juliana de Oliveira Amatussi2https://orcid.org/0000-0002-8025-4638Gabriel Bochetti de Lara3https://orcid.org/0000-0002-9090-6812Gilda Mógor4Universidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáThe use of microalgae as natural biofertilizer in horticulture has recently been reported, while the use of humic substances is widespread. However, the combined use of microalgae with humic substances applied to plant leaves is still unexploited. Thus, the objective of this work was to combine fulvic acid (FA) with the Scenedesmus subspicatus microalga biomass (SC) as a natural biofertilizer applied via leaf in two onion cultivars in organic system. Four experiments were conducted: i) bioassays to verify the bioactive effect of FA, SC and combinations using the Vigna radiata model plant; ii) greenhouse pot experiment with foliar applications of FA, SC and combination in two onion cultivars; iii) field experiment in organic system with foliar applications of FA, SC and combination in two onion cultivars; and iv) onion bulb storage experiment. The bioactive effect of SC, FA and their combinations was identified by promoting changes in root growth of V. radiata. In pots, treatments containing FA, SC and combination promoted increase in fresh and dry leaf mass. The foliar application of FA, SC and combination promoted an increase in field bulb productivity, reduced mass loss in stored bulbs and increased carbohydrate, amino acid and protein contents in onion bulbs.https://seer.ufu.br/index.php/biosciencejournal/article/view/58854allium cepa l.humic substancesscenedesmus subspicatusorganic farmingscenedesmus subspicatus. |
| spellingShingle | Luiz Gabriel Gemin Átila Francisco Mógor Juliana de Oliveira Amatussi Gabriel Bochetti de Lara Gilda Mógor Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer Bioscience Journal allium cepa l. humic substances scenedesmus subspicatus organic farming scenedesmus subspicatus. |
| title | Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer |
| title_full | Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer |
| title_fullStr | Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer |
| title_full_unstemmed | Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer |
| title_short | Organic onion growth, yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer |
| title_sort | organic onion growth yield and storage improved by foliar sprays of microalgae and fulvic acid as a natural biofertilizer |
| topic | allium cepa l. humic substances scenedesmus subspicatus organic farming scenedesmus subspicatus. |
| url | https://seer.ufu.br/index.php/biosciencejournal/article/view/58854 |
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