Effects of Nitrogen and Boron Fertilization on Lettuce Mineral Nutrition in a Calcareous Soil
| Autor: | Dionisios Gasparatos, Pantelis Zamanidis, Anastasios Petridis, C. Haidouti, Christos Paschalidis |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Communications in Soil Science and Plant Analysis. 44:733-740 |
| ISSN: | 1532-2416 0010-3624 |
| DOI: | 10.1080/00103624.2013.748125 |
| Popis: | The effect of nitrogen (N) on the boron (B) nutrition of plants is of great significance because N may promote or reduce B absorption. Therefore, a fertilizer factorial experiment of randomized complete block design was conducted in pots under greenhouse conditions using lettuce (Lactuca sativa L.) as test plant. Plants of lettuce were grown in a calcareous sandy clay loam soil with different N and B fertilizer levels to investigate the effect of applied N and B as well as their interactions on nutrient distribution in leaves and roots of lettuce plants. Treatments consisted of four levels of N (0, 200, 400, and 600 mg N kg−1 soil) and two levels of B (0 and 5 mg B kg−1 soil). The results showed that increasing N level up to 600 mg N kg−1 significantly increased soil nitrate (NO3 −) N and potassium (K) but had no effect on soil available phosphorus (P) and B. Application of 5 mg B kg−1 soil significantly decreased available K, whereas P concentrations increased. Nitrogen application increased leaf and roo... |
| Databáze: | OpenAIRE |
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