Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations
Reducing fertilizer use is a priority in the quest for sustainable forestry systems. In short rotation Eucalyptus plantations, NPK pellets are routinely added to the seedling's top soil layer at planting, potentially leading to increased seedling mortality, nutrient loss and environmental degra...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03014797_v210_n_p239_Tubert http://hdl.handle.net/20.500.12110/paper_03014797_v210_n_p239_Tubert |
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paper:paper_03014797_v210_n_p239_Tubert2023-06-08T15:27:57Z Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations Eucalyptus Mineral nutrition Silviculture Superabsorbent polymer Water management fertilizer polymer rain superabsorbent composite unclassified drug water absorption composite drought stress environmental conditions evergreen forest experimental study fertilizer growth nutrient dynamics physiology plantation forestry polymer silviculture survival sustainable forestry water management water use efficiency Article controlled study drought stress Eucalyptus Eucalyptus grandis fertilization field experiment greenhouse nonhuman nutrient concentration plant growth plant nutrient plant water use plantation precipitation root system seedling South America stomatal conductance synthesis water absorption water availability environmental protection forestry soil South America Eucalyptus Conservation of Natural Resources Eucalyptus Fertilizers Forestry Soil Water Reducing fertilizer use is a priority in the quest for sustainable forestry systems. In short rotation Eucalyptus plantations, NPK pellets are routinely added to the seedling's top soil layer at planting, potentially leading to increased seedling mortality, nutrient loss and environmental degradation. To address this triple challenge, the development of efficient fertilization practices is essential. In the present work, we synthesized a crosslinked acrylic-cellulosic superabsorbent composite (SAPH-BAL) containing small amounts of specific nutrients integrated in the polymer matrix. We analyzed the composite's chemical and rheological properties, and assessed the viability of Eucalyptus plantations supplied with it at planting. Physiological measurements confirmed the suitability of SAPH-BAL in greenhouse-grown potted seedlings subjected to different growth conditions, showing that it efficiently delivers nutrients while protecting seedlings from drought stress. Field experiments carried out at ten South American locations covering an ample range of environmental conditions confirmed the beneficial effect of SAPH-BAL on growth and survival in comparison to the conventional fertilization scheme (superabsorbent + 75 g NPK). Furthermore, it was found that plants treated with SAPH-BAL were less affected by the differences in rainfall regimes during the experiments compared to those fertilized conventionally. To the best of our knowledge this is the first report describing the successful use of superabsorbents for root targeted delivery of fertilizers in forestry operations. © 2018 Elsevier Ltd 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03014797_v210_n_p239_Tubert http://hdl.handle.net/20.500.12110/paper_03014797_v210_n_p239_Tubert |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Eucalyptus Mineral nutrition Silviculture Superabsorbent polymer Water management fertilizer polymer rain superabsorbent composite unclassified drug water absorption composite drought stress environmental conditions evergreen forest experimental study fertilizer growth nutrient dynamics physiology plantation forestry polymer silviculture survival sustainable forestry water management water use efficiency Article controlled study drought stress Eucalyptus Eucalyptus grandis fertilization field experiment greenhouse nonhuman nutrient concentration plant growth plant nutrient plant water use plantation precipitation root system seedling South America stomatal conductance synthesis water absorption water availability environmental protection forestry soil South America Eucalyptus Conservation of Natural Resources Eucalyptus Fertilizers Forestry Soil Water |
| spellingShingle |
Eucalyptus Mineral nutrition Silviculture Superabsorbent polymer Water management fertilizer polymer rain superabsorbent composite unclassified drug water absorption composite drought stress environmental conditions evergreen forest experimental study fertilizer growth nutrient dynamics physiology plantation forestry polymer silviculture survival sustainable forestry water management water use efficiency Article controlled study drought stress Eucalyptus Eucalyptus grandis fertilization field experiment greenhouse nonhuman nutrient concentration plant growth plant nutrient plant water use plantation precipitation root system seedling South America stomatal conductance synthesis water absorption water availability environmental protection forestry soil South America Eucalyptus Conservation of Natural Resources Eucalyptus Fertilizers Forestry Soil Water Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| topic_facet |
Eucalyptus Mineral nutrition Silviculture Superabsorbent polymer Water management fertilizer polymer rain superabsorbent composite unclassified drug water absorption composite drought stress environmental conditions evergreen forest experimental study fertilizer growth nutrient dynamics physiology plantation forestry polymer silviculture survival sustainable forestry water management water use efficiency Article controlled study drought stress Eucalyptus Eucalyptus grandis fertilization field experiment greenhouse nonhuman nutrient concentration plant growth plant nutrient plant water use plantation precipitation root system seedling South America stomatal conductance synthesis water absorption water availability environmental protection forestry soil South America Eucalyptus Conservation of Natural Resources Eucalyptus Fertilizers Forestry Soil Water |
| description |
Reducing fertilizer use is a priority in the quest for sustainable forestry systems. In short rotation Eucalyptus plantations, NPK pellets are routinely added to the seedling's top soil layer at planting, potentially leading to increased seedling mortality, nutrient loss and environmental degradation. To address this triple challenge, the development of efficient fertilization practices is essential. In the present work, we synthesized a crosslinked acrylic-cellulosic superabsorbent composite (SAPH-BAL) containing small amounts of specific nutrients integrated in the polymer matrix. We analyzed the composite's chemical and rheological properties, and assessed the viability of Eucalyptus plantations supplied with it at planting. Physiological measurements confirmed the suitability of SAPH-BAL in greenhouse-grown potted seedlings subjected to different growth conditions, showing that it efficiently delivers nutrients while protecting seedlings from drought stress. Field experiments carried out at ten South American locations covering an ample range of environmental conditions confirmed the beneficial effect of SAPH-BAL on growth and survival in comparison to the conventional fertilization scheme (superabsorbent + 75 g NPK). Furthermore, it was found that plants treated with SAPH-BAL were less affected by the differences in rainfall regimes during the experiments compared to those fertilized conventionally. To the best of our knowledge this is the first report describing the successful use of superabsorbents for root targeted delivery of fertilizers in forestry operations. © 2018 Elsevier Ltd |
| title |
Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| title_short |
Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| title_full |
Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| title_fullStr |
Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| title_full_unstemmed |
Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| title_sort |
synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03014797_v210_n_p239_Tubert http://hdl.handle.net/20.500.12110/paper_03014797_v210_n_p239_Tubert |
| _version_ |
1768543944917909504 |