Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Production and Quality of West Indian Cherry under Salt Stress and NPK Fertilization Combinations

Version 1 : Received: 15 May 2023 / Approved: 16 May 2023 / Online: 16 May 2023 (04:37:27 CEST)

A peer-reviewed article of this Preprint also exists.

Silva Filho, A.M.; Gheyi, H.R.; Melo, A.S.; Silva, A.A.R.; Bonou, S.I.; Amadeu, L.T.S.; Ferraz, R.L.S.; Costa, P.S.; Chaves, L.H.G.; Figueirêdo, R.M.F. Production and Quality of West Indian Cherry (Malpighia emarginata D. C.) under Salt Stress and NPK Combinations. Horticulturae 2023, 9, 649. Silva Filho, A.M.; Gheyi, H.R.; Melo, A.S.; Silva, A.A.R.; Bonou, S.I.; Amadeu, L.T.S.; Ferraz, R.L.S.; Costa, P.S.; Chaves, L.H.G.; Figueirêdo, R.M.F. Production and Quality of West Indian Cherry (Malpighia emarginata D. C.) under Salt Stress and NPK Combinations. Horticulturae 2023, 9, 649.

Abstract

In the semi-arid region of Brazil, it is common to use saline or brackish water for crop production. However, this practice can negatively affect the soil, nutrient balance, and fruit quality and production. From this perspective, this study aimed to evaluate the effect of fertilization combinations with nitrogen (N), phosphorus (P), and potassium (K) on the production and quality of West Indian cherry grown under salt stress in the second year of production. The study was conducted in a protected environment following a randomized block design with treatments distributed in a 2 x 10 factorial arrangement referring to two levels of electrical conductivity of irrigation water (ECw) (0.6 and 4.0 dS m-1) and 10 NPK fertilization combinations (80-100-100; 100-100-100; 120-100-100; 140-100-100; 100-80-100; 100-120-100; 100-140-100; 100-100-80; 100-100-120 e 100-100-140% of the recommendation in the second year of production), with three replicates and one plant per lysimeter. The results indicate that irrigation of West Indian cherry crop irrigation at the water salinity of 4.0 dS m-1 negatively affected all fruit production variables. The interaction between the ECw of 0.6 dS m-1 and the 100-80-120 NPK fertilization combination increased the total number of fruits and the total fruit weight of West Indian cherry.

Keywords

Malpighia emarginata; water salinity; fertilization management

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

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