Foliar fertilization with gradual release of shale-based nutrients in strawberry and its effect on yield and compounds with functional potential

Abstract

The aim of this study was to evaluate the influence of a fertilizer matrix of shale-based by-products and shale water as an alternative fertilization on strawberry culture. Were used 16 treatments, which resulted from the combination of three factors levels: cultivar (with two levels: Camarosa and Camino Real), allocated in plot, complementary base fertilization (with two levels: with and without MBR fertilizer matrix at a dose of 2000 kg ha-1), allocated in subplots and foliar fertilization (with four levels: Shale water, shale water + boron, shale water + calcium and a control without foliar fertilization), allocated in the sub-subplot. Yield, functional compounds and fruit chemical analysis were investigated. The production obtained in strawberry crop was similar or higher than national average. In the conditions of this study, in area with high level of initial fertility, the complementary base fertilization with MBR and foliar fertilization with shale water-based, did not influence the variables of quality such as the functional properties and chemical characteristics of strawberry fruits. Similarly, the added micronutrients in leaf fertilization shale water-based, Ca and B did not influence the yield and quality variables of studied culture.

Agronomic performance of cultivars and advanced selections of strawberry in the South Plateau of Santa Catarina State

“…Data of number of fruits per plant found in this work were lower than those achieved by Ferreira et al (2019), which obtained averages for the number of fruits per plant of 50.5, 45.4 and 31.8 for the Benicia, Monterey and Albion cultivars, respectively, and those obtained by Costa et al (2018), which obtained averages of number of fruits oscillating between 24.6 and 42.67 fruits per plant, evaluating twelve cultivars, among them Albion, Aromas and Camarosa. However, the number of fruits per plant found in this work for the cultivars Camino Real and Camarosa was higher than those obtained by Araújo et al (2016), which obtained averages of 15.28 fruits plant -1 (Camino Real) and 15.77 fruits plant -1 (Camarosa). Environmental factors, such as planting time (Ruan et al 2011;Ariza et al, 2012), temperature and relative humidity fluctuations (Costa et al, 2016), type and quality of the planting material (Ruan et al, 2011), cultivation (Ariza et al, 2012;Araújo et al, 2016) and diseases incidence (Oliveira & Bonow, 2012) may cause these oscillations in the variable number of fruits per plant.…”

“…However, the number of fruits per plant found in this work for the cultivars Camino Real and Camarosa was higher than those obtained by Araújo et al (2016), which obtained averages of 15.28 fruits plant -1 (Camino Real) and 15.77 fruits plant -1 (Camarosa). Environmental factors, such as planting time (Ruan et al 2011;Ariza et al, 2012), temperature and relative humidity fluctuations (Costa et al, 2016), type and quality of the planting material (Ruan et al, 2011), cultivation (Ariza et al, 2012;Araújo et al, 2016) and diseases incidence (Oliveira & Bonow, 2012) may cause these oscillations in the variable number of fruits per plant.…”

Planting Density Interferes with Strawberry Production Efficiency in Southern Brazil

“…The highest averages for total production per plant were obtained with the largest spacing between plants (30 cm), 540.45 g plant -1 in the 2018/2019 harvest and 685.50 g plant -1 in the 2019/2020 harvest ( Figure 1B). The average productions in the two evaluated crops were below the potential of the cultivar Pircinque, 1 kg per plant, considered appropriate to provide good profitability to the producer [26], and also when compared to another study that obtained the average production of 848.9 g plant -1 , testing four cultivars in suspended cultivation [44]. In both agricultural harvests of 2018/2019 and 2019/2020, there was a decrease in productivity due to the increase in spacing between plants ( Figure 2A).…”

“…The number of fruits was higher in the 2019/2020 harvest than in the 2018/2019 harvest. These variations in the number of fruits per plant are mainly due to factors such as cultivars, date of planting [42,43], cultural practices [43,44,45], and also by temperature fluctuations, water regime, and incidence of diseases during the growing seasons [12,46].…”

Planting Density Interferes with Strawberry Production Efficiency in Southern Brazil

“…Other authors re-ported variations from 21.3 to 44.9 fruits in soil and substrate cultivations [48]. These variations in the number of fruits per plant are mainly due to factors such as cultivar, the date of planting [40,49], cultural practices [40,50,51], and by temperature fluctuations, water regime, and the incidence of diseases during the growing seasons [14,52]. Other authors reported the increase in the number of fruits verified in the present study due to increased spacing between plants and in several cultures, such as larger fruit vegetables [53,54].…”