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Home NEWS Science News

Effects of potassium fertilization in pear trees

Bioengineer by Bioengineer
June 11, 2020
in Science News
Reading Time: 2 mins read
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Credit: Courtesy of P.B. Sete.

The amount of exchangeable potassium (K) contained in native soil does not always meet the necessary nutrient demand for a pear tree, which makes the use of K based fertilizer essential. Brazilian farmers face daily challenges to increase their productivity. Such challenges include a lack of knowledge of optimum fertilizer doses, and the critical levels of those fertilizer.

In a recent article published in Agronomy Journal, researchers report on a study to determine the impact of K based fertilizers on quality and yield of pears in an orchard with a long history of fertilizer use, in order to establish critical levels of K in the soil and leaves.

The team discovered that the levels of exchangeable K in the soil increased along with the application of K based fertilizers, but they did not find a correlation with the K concentration in leaves and fruits. Therefore, it was not possible to estimate the critical levels of K in the soil and leaves. Moreover, the fruits given higher doses of K showed the lowest values of ethylene production and respiration rate, which resulted in an increase in storage life in cold rooms and on the shelves.

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Adapted from Sete, P.B., Ciotta, M.N., Nava, G., Stefanello, L.d.O., Brackmann, A., Berghetti, M.R.P., Cadoná, E.A. and Brunetto, G. (2020), Potassium fertilization effects on quality, economics, and yield in a pear orchard. Agron. J. Accepted Author Manuscript.

Media Contact
Rachel Schutte
[email protected]

Related Journal Article

http://dx.doi.org/10.1002/agj2.20235

Tags: Agricultural Production/EconomicsAgricultureEcology/EnvironmentFertilizers/Pest ManagementGeology/SoilInternational/ImmigrationNutrition/NutrientsPlant SciencesResearch/Development
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