Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study
Few conservation strategies have been applied to cultivated peatland. This field study over one growth cycle of <i>Lactuca sativa</i> examined the effect of plant-based, high-C/N-ratio amendments in a real farming situation on peatland. Plant Root Simulator (PRS<sup>®</sup>)...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Nitrogen |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-3129/3/1/2 |
| _version_ | 1797444016471539712 |
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| author | Jacynthe Dessureault-Rompré Alexis Gloutney Jean Caron |
| author_facet | Jacynthe Dessureault-Rompré Alexis Gloutney Jean Caron |
| author_sort | Jacynthe Dessureault-Rompré |
| collection | DOAJ |
| description | Few conservation strategies have been applied to cultivated peatland. This field study over one growth cycle of <i>Lactuca sativa</i> examined the effect of plant-based, high-C/N-ratio amendments in a real farming situation on peatland. Plant Root Simulator (PRS<sup>®</sup>) probes were used directly in the field to assess the impacts of incorporating <i>Miscanthus x giganteus</i> straw and <i>Salix</i> <i>miyabeana</i> chips on nutrient availability for lettuce. The results showed that lettuce yield decreased by 35% in the miscanthus straw treatment and by 14% in the willow chip treatment. In addition, the nitrogen flux rate was severely reduced during crop growth (75% reduction) and the plant N uptake index was much lower in the amended treatments than in the control. The phosphorus supply rate was also significantly lower (24% reduction) in the willow treatment. The influence of sampling zone was significant as well, with most macro-nutrients being depleted in the root zone and most micro-nutrients being mobilized. Additional work is needed to optimize the proposed conservation strategy and investigate the effects of consecutive years of soil amendment on different vegetable crops and in different types of cultivated peatlands to confirm and generalize the findings of this study. Future field studies should also explore the long-term carbon dynamics under plant-based, high-C/N-ratio amendments to determine if they can offset annual C losses. |
| first_indexed | 2024-03-09T13:06:25Z |
| format | Article |
| id | doaj.art-315a803b912b41059dcd09d6292114eb |
| institution | Directory Open Access Journal |
| issn | 2504-3129 |
| language | English |
| last_indexed | 2024-03-09T13:06:25Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nitrogen |
| spelling | doaj.art-315a803b912b41059dcd09d6292114eb2023-11-30T21:47:54ZengMDPI AGNitrogen2504-31292022-01-0131264210.3390/nitrogen3010002Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange StudyJacynthe Dessureault-Rompré0Alexis Gloutney1Jean Caron2Soil and Agri-Food Engineering Department, Laval University, 2480 Hochelaga Blvd., Quebec City, QC G1V 0A6, CanadaSoil and Agri-Food Engineering Department, Laval University, 2480 Hochelaga Blvd., Quebec City, QC G1V 0A6, CanadaSoil and Agri-Food Engineering Department, Laval University, 2480 Hochelaga Blvd., Quebec City, QC G1V 0A6, CanadaFew conservation strategies have been applied to cultivated peatland. This field study over one growth cycle of <i>Lactuca sativa</i> examined the effect of plant-based, high-C/N-ratio amendments in a real farming situation on peatland. Plant Root Simulator (PRS<sup>®</sup>) probes were used directly in the field to assess the impacts of incorporating <i>Miscanthus x giganteus</i> straw and <i>Salix</i> <i>miyabeana</i> chips on nutrient availability for lettuce. The results showed that lettuce yield decreased by 35% in the miscanthus straw treatment and by 14% in the willow chip treatment. In addition, the nitrogen flux rate was severely reduced during crop growth (75% reduction) and the plant N uptake index was much lower in the amended treatments than in the control. The phosphorus supply rate was also significantly lower (24% reduction) in the willow treatment. The influence of sampling zone was significant as well, with most macro-nutrients being depleted in the root zone and most micro-nutrients being mobilized. Additional work is needed to optimize the proposed conservation strategy and investigate the effects of consecutive years of soil amendment on different vegetable crops and in different types of cultivated peatlands to confirm and generalize the findings of this study. Future field studies should also explore the long-term carbon dynamics under plant-based, high-C/N-ratio amendments to determine if they can offset annual C losses.https://www.mdpi.com/2504-3129/3/1/2nitrogenmiscanthuswillowfield experimentlettuceplant-based amendment |
| spellingShingle | Jacynthe Dessureault-Rompré Alexis Gloutney Jean Caron Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study Nitrogen nitrogen miscanthus willow field experiment lettuce plant-based amendment |
| title | Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study |
| title_full | Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study |
| title_fullStr | Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study |
| title_full_unstemmed | Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study |
| title_short | Nutrient Availability for <i>Lactuca sativa</i> Cultivated in an Amended Peatland: An Ionic Exchange Study |
| title_sort | nutrient availability for i lactuca sativa i cultivated in an amended peatland an ionic exchange study |
| topic | nitrogen miscanthus willow field experiment lettuce plant-based amendment |
| url | https://www.mdpi.com/2504-3129/3/1/2 |
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