Effects of nitrogen, phosphorus and potassium formula fertilization on the yield and berry quality of blueberry

Abstract

Through the application ratio of nitrogen (N), phosphorus (P) and potassium (K) in the field, L9 (33) orthogonal experimental design was used to study the effects of different N, P and K ratios on the yield and quality of blueberry fruit, aiming to optimize the amount of supplied fertilizers. The results showed that N, P and K fertilizer had different effects on fruit yield and quality, among which K fertilizer was the most important factor. Fertilization could significantly improve the yield and fruit quality of blueberry, and the average yield of fertilization treatment was 37.78% higher than that of the control group (CK). Even the treatment with the worst results F6 (N2P3K1), its single fruit weight, anthocyanins, total phenols, soluble solids and soluble protein content were 1.09, 1.32, 1.23, 1.08 and 1.21 times higher than the control (CK), respectively. Based on the comprehensive evaluation of principal component analysis and multi factor analysis of variance, the best fertilization combination for high-yield and good-quality blueberries was N1P2K2 (F2), that is, the best fertilization effect was that including N 100 g/plant, P2O5 25 g/plant, K2O 25 g/plant, applied in the form of ammonium sulfate (472 g/plant), superphosphate (41 g/plant) and potassium sulfate (40 g/plant), respectively.

Effect of nitrogen, phosphorus and potassium fertilization management on soil properties and leaf traits and yield of Sapindus mukorossi

“…However, when the rate of fertilizer application exceeds the threshold, fertilizer application can have a negative effect on the plant. Studies in citrus ( Citrus reticulata ) ( Li et al., 2019 ), blueberry ( Zhang et al., 2023 ) and heather ( Phoebe zhennan ) ( Yang et al., 2020 ) also support our finding. The reason for this negative effect may be (1) when the fertilizer application exceeds the threshold, the soil nutrient supply capacity is reduced instead.…”

“…4.1 Effect of fertilization on yield N, P, and K fertilizers are key elements for high crop yields, and proper application can effectively improve crop yield and quality (Nemadodzi et al, 2017;Xing et al, 2023). It has been shown that there is a close relationship between fertilizers, soil, and plants, and the availability of fertilizers can directly affect soil fertility, which in turn affects plant yield (Chen et al, 2019;Zhang et al, 2023). In this study, it was found that N 2 P 2 K 2 treatment was the best fertilizer application rate for the combined indexes, and over-fertilization reduced the yield (Figure 1, Table 4).…”

“…Balanced fertilization refers to the application technology of reasonable fertilizer dosage and ratio based on the fertilizer demand characteristics of crops, soil fertilizer supply performance and fertilizer dosage to maintain nutrient balance between the proposed fertilizer dosage and ratio. For example, Zhang et al. (2023) showed that N, P and K fertilizers have different effects on fruit yield and quality, of which K fertilizer is the main factor affecting yield and quality, and reasonable fertilization can significantly improve the yield and fruit quality of blueberries ( Vaccinium virgatum ).…”

The Influences of Soil and Meteorological Factors on the Growth and Fruit Quality of Chinese Jujube (Ziziphus jujuba Mill.)

“…Phosphorus is indispensable in plant photosynthesis and respiration, carbohydrate, lipid, and nitrogen metabolisms. Some results indicated that potassium and phosphorus fertilizers had important effects on the fruit weight [ 34 , 35 ]. Higher contents of phosphorus and potassium elements were beneficial to the increase in sugar and Vc contents in fruits.…”

Motivation of farmer group members in the application of balanced fertilization in maize (Zea mays) plant cultivation

“…The recommended dose of P and K fertilizer from NPK Phonska 15-15-15 of 300 kg/ha is 45 kg/ha P2O5 and 45 kg/ha K2O or equivalent to 120 kg SP-36 and 75 kg KCl/ha. The plant response to N fertilizer depends on the supply of other nutrients, specifically P and K. Without sufficient P and K fertilizers, the plant response to N fertilizer will be lower (Zhang et al, 2023;Xue et al, 2022;Yahaya et al, 2023;Krouk and Kiba, 2020). Sukristiyonubowo et al (2016) also mentioned that the balance between P and K nutrients is important, specifically in newly opened fields.…”