Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants
ABSTRACT Jatropha seeds oil can replace fossil fuels, but the nutrient supply management for this species is not fully described. The objective with this work was to establish curves of macronutrient (nitrogen - N; phosphorus - P; potassium - K; calcium - Ca; magnesium - Mg and sulfur - S) content i...
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| Format: | Article |
| Language: | English |
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Universidade Federal do Ceará
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| Series: | Revista Ciência Agronômica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400565&lng=en&tlng=en |
| _version_ | 1831740252161572864 |
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| author | Elcio Ferreira Santos Fernando Giovannetti Macedo Bruno José Zanchim Marcos Antonio Camacho José Lavres |
| author_facet | Elcio Ferreira Santos Fernando Giovannetti Macedo Bruno José Zanchim Marcos Antonio Camacho José Lavres |
| author_sort | Elcio Ferreira Santos |
| collection | DOAJ |
| description | ABSTRACT Jatropha seeds oil can replace fossil fuels, but the nutrient supply management for this species is not fully described. The objective with this work was to establish curves of macronutrient (nitrogen - N; phosphorus - P; potassium - K; calcium - Ca; magnesium - Mg and sulfur - S) content in leaves, stem and roots, and to evaluate the relative growth rate (RGR), absolute growth rate (AGR) and the foliar mass ratio (FMR). The experiment was arranged in completely randomized design with five replications. Jatropha plants were grown in nutrient solution and collected at intervals of 14 up to 119 days after treatments started. The period of highest uptake of nutrients occurred from 7 to 35 days after treatments started, which coincides with highest AGR, RGR, FMR and accumulation of dry biomass. The highest Ca and Mg accumulation occurred in the leaves (respectively 48% and 47% of the total taken up), while N, K, S and P were mostly accumulated in the stem (58%, 56%, 56% and 53%, respectively). The nutrients more taken up by Jatropha plants were N and Ca, and the order of macronutrients uptake was: N > Ca > K > Mg > S > P. Jatropha plants have shown high macronutrients content on its early development, indicating the importance of nutritional management to achieve reliable biomass yield. |
| first_indexed | 2024-12-21T13:53:53Z |
| format | Article |
| id | doaj.art-a7c8ca8f4e4c4c7c8f4c110c077a521a |
| institution | Directory Open Access Journal |
| issn | 1806-6690 |
| language | English |
| last_indexed | 2024-12-21T13:53:53Z |
| publisher | Universidade Federal do Ceará |
| record_format | Article |
| series | Revista Ciência Agronômica |
| spelling | doaj.art-a7c8ca8f4e4c4c7c8f4c110c077a521a2022-12-21T19:01:37ZengUniversidade Federal do CearáRevista Ciência Agronômica1806-669048456557510.5935/1806-6690.20170066S1806-66902017000400565Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plantsElcio Ferreira SantosFernando Giovannetti MacedoBruno José ZanchimMarcos Antonio CamachoJosé LavresABSTRACT Jatropha seeds oil can replace fossil fuels, but the nutrient supply management for this species is not fully described. The objective with this work was to establish curves of macronutrient (nitrogen - N; phosphorus - P; potassium - K; calcium - Ca; magnesium - Mg and sulfur - S) content in leaves, stem and roots, and to evaluate the relative growth rate (RGR), absolute growth rate (AGR) and the foliar mass ratio (FMR). The experiment was arranged in completely randomized design with five replications. Jatropha plants were grown in nutrient solution and collected at intervals of 14 up to 119 days after treatments started. The period of highest uptake of nutrients occurred from 7 to 35 days after treatments started, which coincides with highest AGR, RGR, FMR and accumulation of dry biomass. The highest Ca and Mg accumulation occurred in the leaves (respectively 48% and 47% of the total taken up), while N, K, S and P were mostly accumulated in the stem (58%, 56%, 56% and 53%, respectively). The nutrients more taken up by Jatropha plants were N and Ca, and the order of macronutrients uptake was: N > Ca > K > Mg > S > P. Jatropha plants have shown high macronutrients content on its early development, indicating the importance of nutritional management to achieve reliable biomass yield.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400565&lng=en&tlng=enJatropha curcasNutrient uptakeRelative growth rateMacronutrients uptake curvesMacronutrient uptake rates |
| spellingShingle | Elcio Ferreira Santos Fernando Giovannetti Macedo Bruno José Zanchim Marcos Antonio Camacho José Lavres Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants Revista Ciência Agronômica Jatropha curcas Nutrient uptake Relative growth rate Macronutrients uptake curves Macronutrient uptake rates |
| title | Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants |
| title_full | Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants |
| title_fullStr | Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants |
| title_full_unstemmed | Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants |
| title_short | Macronutrients uptake rate and biomass partitioning during early growth of Jatropha plants |
| title_sort | macronutrients uptake rate and biomass partitioning during early growth of jatropha plants |
| topic | Jatropha curcas Nutrient uptake Relative growth rate Macronutrients uptake curves Macronutrient uptake rates |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400565&lng=en&tlng=en |
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