Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus
Purpose: Nitrogen (N) / potassium (K) nutrient balance has been studied for some ornamental plants, however, available information is limited. Here we investigate the optimum N and K balance and concentration for lisianthus production in soilless medium. Materials and methods: The effect of three N...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-08-01
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| Series: | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/09064710.2018.1433873 |
| _version_ | 1827817043070550016 |
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| author | Daniela Alvarado-Camarillo Ana María Castillo-González Luis A. Valdez-Aguilar Juana C. García-Santiago |
| author_facet | Daniela Alvarado-Camarillo Ana María Castillo-González Luis A. Valdez-Aguilar Juana C. García-Santiago |
| author_sort | Daniela Alvarado-Camarillo |
| collection | DOAJ |
| description | Purpose: Nitrogen (N) / potassium (K) nutrient balance has been studied for some ornamental plants, however, available information is limited. Here we investigate the optimum N and K balance and concentration for lisianthus production in soilless medium. Materials and methods: The effect of three N / K balances: 1.43, 2.14 and 4.29, prepared by varying the concentration of N and K, were evaluated in lisianthus grown in soilless medium (volcanic rock). Results: Plants fertigated with a N / K balance of 2.14 exhibited enhanced height and stem dry weight when compared to plants fertigated with a balance of 4.29, and a higher flower buds count and total dry weight than those fertigated with a balance of 1.43 or 4.29. Plants fertigated with a balance of 2.14 exhibited increased dry weight when N was reduced from 15 to 9 meq L−1 and K from 7 to 4.2 meq L−1, suggesting that lisianthus does not require high levels of these nutrients. Although shoot N concentration was not correlated with N concentration in the nutrient solution or balance, increasing N in the shoot was associated with higher P and Mg in the plant tissues. In general, P, Ca, and Mg in plant tissues were unaffected by the external N / K balance, however, the internal P and Mg concentrations were positively correlated with shoot dry weight. Shoot K concentration significantly increased when the N / K balance decreased, which is related to the higher concentrations of external K when the balance decreased. Conclusions: The optimum N / K balance for lisianthus was 2.14. However, there was a concentration effect, as fertigation with solutions containing a N / K balance of 2.14 and an N and K concentration of 9 and 4.2 meq L−1 respectively, resulted in plants with the greatest dry weight. |
| first_indexed | 2024-03-12T00:28:50Z |
| format | Article |
| id | doaj.art-10a6384ad7354f71adb844de7e6d62ee |
| institution | Directory Open Access Journal |
| issn | 0906-4710 1651-1913 |
| language | English |
| last_indexed | 2024-03-12T00:28:50Z |
| publishDate | 2018-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| spelling | doaj.art-10a6384ad7354f71adb844de7e6d62ee2023-09-15T10:26:23ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132018-08-0168649650410.1080/09064710.2018.14338731433873Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthusDaniela Alvarado-Camarillo0Ana María Castillo-González1Luis A. Valdez-Aguilar2Juana C. García-Santiago3Universidad Autónoma Agraria Antonio NarroUniversidad Autónoma ChapingoUniversidad Autónoma Agraria Antonio NarroUniversidad Autónoma del Estado de MorelosPurpose: Nitrogen (N) / potassium (K) nutrient balance has been studied for some ornamental plants, however, available information is limited. Here we investigate the optimum N and K balance and concentration for lisianthus production in soilless medium. Materials and methods: The effect of three N / K balances: 1.43, 2.14 and 4.29, prepared by varying the concentration of N and K, were evaluated in lisianthus grown in soilless medium (volcanic rock). Results: Plants fertigated with a N / K balance of 2.14 exhibited enhanced height and stem dry weight when compared to plants fertigated with a balance of 4.29, and a higher flower buds count and total dry weight than those fertigated with a balance of 1.43 or 4.29. Plants fertigated with a balance of 2.14 exhibited increased dry weight when N was reduced from 15 to 9 meq L−1 and K from 7 to 4.2 meq L−1, suggesting that lisianthus does not require high levels of these nutrients. Although shoot N concentration was not correlated with N concentration in the nutrient solution or balance, increasing N in the shoot was associated with higher P and Mg in the plant tissues. In general, P, Ca, and Mg in plant tissues were unaffected by the external N / K balance, however, the internal P and Mg concentrations were positively correlated with shoot dry weight. Shoot K concentration significantly increased when the N / K balance decreased, which is related to the higher concentrations of external K when the balance decreased. Conclusions: The optimum N / K balance for lisianthus was 2.14. However, there was a concentration effect, as fertigation with solutions containing a N / K balance of 2.14 and an N and K concentration of 9 and 4.2 meq L−1 respectively, resulted in plants with the greatest dry weight.http://dx.doi.org/10.1080/09064710.2018.1433873eustoma grandiflorumhydroponicsion relationsnutrient ratiosnutrient solutions |
| spellingShingle | Daniela Alvarado-Camarillo Ana María Castillo-González Luis A. Valdez-Aguilar Juana C. García-Santiago Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus Acta Agriculturae Scandinavica. Section B, Soil and Plant Science eustoma grandiflorum hydroponics ion relations nutrient ratios nutrient solutions |
| title | Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus |
| title_full | Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus |
| title_fullStr | Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus |
| title_full_unstemmed | Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus |
| title_short | Balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus |
| title_sort | balance and concentration of nitrogen and potassium affect growth and nutrient status in soilless cultivated lisianthus |
| topic | eustoma grandiflorum hydroponics ion relations nutrient ratios nutrient solutions |
| url | http://dx.doi.org/10.1080/09064710.2018.1433873 |
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