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Scientific Electronic Archives
Agricultural Science
DOI: 10.36560/17520241971
Submitted: 2024-06-17
Published: 2024-08-28

Benefit of silicate fertilizer on the growth of lettuce plants

Instituto Federal Catarinense
Instituto Federal Catarinense
Instituto Federal Catarinense
Instituto Federal Catarinense
Instituto Federal Catarinense
Instituto Federal Catarinense
Instituto Federal Catarinense
Instituto Federal Catarinense
growth analysis, Lactuca sativa, silicon.

Abstract

The objective of this work was to investigate different doses of silicon (Si), applied via foliar, on the growth of lettuce plants. For this, lettuce seedlings, Lactuca sativa L., curly variety, cultivar “Vanda”, grew in plastic pots containing 5 dm3 of substrate inside the greenhouse of the Instituto Federal Catarinense, Campus Videira. The plants grew with the substrate kept close to field capacity until the end of the experiment, lasting 45 days after transplantation (DAT) of the seedlings into the pots. Irrigation control was carried out using the gravimetric method (daily weighing of the pots), adding water until the mass of the pot reached the previously determined value, considering the mass of soil and water. The application of Si doses was carried out using a manual sprayer with a capacity of 500 mL and a fan-type nozzle for application. Control plants where Si was not applied were sprayed with distilled water. The simple mineral foliar fertilizer potassium silicate (Flex Silício®) was used in doses: 0 ml/L (Control), 1.5; 3.0; 4.5 and 6.0 ml/L of potassium silicate, applied every 10 DAT of the seedlings to the pots. The experiment was set up in a completely randomized design, with four replications, at five dose levels of potassium silicate (0, 1.5; 3.0; 4.5 and 6.0 ml/L). Each experimental unit was composed of a plastic pot containing a plant. The data were subjected to analysis of variance, and the treatments were compared using the Tukey test (5% probability), using the R® software program, version 4.3.2. Growth assessments were carried out at the end of the experimental period, at 45 DAT of the seedlings into the pots. In each collection, the following variables were analyzed per plant in each treatment: number of leaves, diameter of the collection, height, dry matter of the leaf, stem, root and total (leaf, branches and stem, and root). According to the results obtained, it was observed that the supply of Si benefited plant growth, as evidenced by the significant increases found for stem diameter and height. Si contributed to significant increases in leaf, stem and root dry matter, leading to greater accumulation of total plant dry matter, especially at a dose of 6 ml/L of potassium silicate, favoring growth.

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How to Cite

Dan Tatagiba, S., Rigo, H., Sarmento, E. C., Padilha, A. S., Hackbarth, C., Nachtigall, G. R., … Araújo, R. (2024). Benefit of silicate fertilizer on the growth of lettuce plants. Scientific Electronic Archives, 17(5). https://doi.org/10.36560/17520241971