Growth and early fruit production of ‘Tiben’ blackcurrants fertilised with pre- and post-planting applications of mineral fertilisers and swine manure

Blackcurrant Variety Specific Growth and Yield Formation as a Response to Foliar Fertilizers

“…Foliar application of fertilizers induced a specific difference and adaptability within individual varieties. Many studies agree that genotype is the main source of fruit variation in ascorbic acid [35], phenolic compounds, anthocyanins, antioxidant capacity, dry matter content, soluble solids, pH, as well as yield and berry weight [7,12,[36][37][38][39]. Our results state clearly a variety preference upon a single fertilizer type.…”

“…For a medium content of AsA and AnT, the Tines variety requires a fertilizer (Mikromix) with a medium content of macronutrients (N), also a medium B content and high content of Cu, Fe, Mn and Zn compared with the other foliar fertilizers. It has been shown that the accumulation of ascorbic acid is highest during the fruit expansion phase [44] and that a medium content of macronutrients and micronutrients crop-fitted need persist until later ripening stages [36].…”

“…In addition, we could also appreciate that foliar fertilizer determined an increase in shoot length with a maximum effect in d28 and d42, because the fertilizer effect is usually seen at the beginning of the vegetation stage. Wójcik and Filipczak [36] found that Tiben plants supplied with mineral fertilizers also had stronger vigor, higher photosynthetic rates, more chlorophyll in the leaves and greater yields than did those grown with manure only or no fertilizer. They also stated that fertilizers influence the level of acidity in fruits (AsA), with an exception for AnT content.…”

Effect of split applications of oil cake on leaf nutrient contents, tree growth, and fruit quality in non-astringent persimmon trees

“…Fruit drop was also highly correlated with the extent of shading of fruit observed on single and twosplit application trees, which may have increased abscisic acid concentrations and sorbitol dehydrogenase gene expression (Dash et al, 2012;Yuan & Huang, 1988;Zhu et al, 2011). Split applications of compost did not affect total yields in peach (Baldi et al, 2010) or blackcurrant (Wójcik & Filipczak, 2015). In our research, twoand three-split applications of oil cake resulted in higher numbers of fruit set and higher yields than in the zero or single application trees in 2010 (Table 4).…”

“…However, a single application of a soluble fertiliser in the spring was more effective at improving fruit skin colour, nutrient concentrations, and flavour than a split (spring and autumn) application in peach (Olienyk et al, 1997) and apple trees (Drake et al, 2002), while return bloom and fruit yields were adversely affected. Research on the physiological responses of fruit trees to organic fertiliser has focused on the rates of application of mineral fertilisers (Dong and Shu, 2004;Kim et al, 2015;Roan et al, 2008), and not on split applications of a fixed amount of fertiliser (Baldi et al, 2010;Wójcik & Filipczak, 2015).…”