Glasnik Zaštite Bilja, Vol. 40 No. 5, 2017.
Professional paper
https://doi.org/10.31727/gzb.40.5.4
The application of fertilizers based on phosphite in lettuce and other leafy vegetables fertilization
David Gluhić
; Veleučilište Rijeka, Poljoprivredni odjel Poreč
Abstract
Phosphorus represents an important biogenic element for all agricultural crops. Although phosphorus requirements differ significantly between individual crops, the phosphorus requirement is very important because phosphorus is a constituent element of adenosine-diphosphate (ADP) and adenosine-triphosphate (ATP); compounds that are source of energy for all physiological processes in the plant. On the other hand, fertilization with phosphorus is quite problematic due to a number of factors that reduce the uptake of phosphorus from soil. Therefore, the chemical fertilizer industry has recently offered new opportunities for phosphorus fertilization - phosphite based fertilizers. Due to a number of positive effects on fertilization, phosphite based fertilizers are increasingly being used for the fertilization of agricultural crops, as well as leafy vegetables such as lettuce, leaf beet, spinach and other leafy vegetables. Except in foliar fertilization, phosphites can be used in fertigation systems too. In the production of fertilizers, the phosphites are mixed with other elements such as potassium, magnesium, calcium or some microelement, thus obtaining highly concentrated fertilizers for use in agriculture. Phosphates are specific compounds that, besides plant nutrition, have other positive effects in agricultural production. The use of phosphite effectively increases the resistance of the plant to diseases caused by the fungus and increases the resistance to bacterial diseases of leaf. As a lettuce production is very intensive, these positive properties of phosphite based fertilizers are very important.
Keywords
phosphite; phosphorus; potassium-phosphite; letucce
Hrčak ID:
188463
URI
Publication date:
27.10.2017.
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