Effects of CO<sub>2</sub> concentration on the growth and nutrient uptake of tomato seedlings
Hydroponic experiment was carried out to study the effects of CO<sub>2</sub> concentration on the growth and nutrient uptake of tomato seedlings. The results showed that CO<sub>2</sub> enrichment significantly increased the accumulation of dry matter of tomato seedlings, espe...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2006-05-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2006.03.0307 |
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| Summary: | Hydroponic experiment was carried out to study the effects of CO<sub>2</sub> concentration on the growth and nutrient uptake of tomato seedlings. The results showed that CO<sub>2</sub> enrichment significantly increased the accumulation of dry matter of tomato seedlings, especially root growth which resulted in an increase of root/shoot ratio. Total uptake of N, P and K was enhanced by the developed root-system although the contents of N, P and K showed different changes. N content of tomato plant was not affected by CO<sub>2</sub> concentration and the K content was decreased by CO<sub>2</sub> enrichment but the P content was significantly increased in the high concentration treatment of CO<sub>2</sub>. Enrichment of CO<sub>2</sub> largely decreased nitrate content in tomato plant, especially in the leaves. Therefore, enrichment of CO<sub>2</sub> could not only significantly increase crop yield, but also improve the quality of farm products. |
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| ISSN: | 1008-9209 2097-5155 |