Potassium Fertilization on Fruits Orchards: A Study Case from Brazil

Leonel, Sarita; Reis, Luis Lessi dos

doi:10.5772/53210

Cited by 5 publications

(2 citation statements)

References 27 publications

(30 reference statements)

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“…For example, applying K fertilizers in July and August (combined with nitrogen and phosphorus applications) significantly increased the yield of five apple cultivars in British Columbia [41]. At the same time, the lack of K leads to a significant decrease in fruit size and, hence, yield [42][43][44][45].…”

Section: -Mm Fruit-picking Maturity (74-87 Bbch Scale)mentioning

confidence: 99%

Essential Role of Potassium in Apple and Its Implications for Management of Orchard Fertilization

Кузин

Solovchenko

2021

Plants

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K (K) is of paramount importance for apple (Malus × domestica Borkh.), not only for tree growth and development but also for the size and quality of fruit yield. The apple plant’s demand for K varies, along with the progression of phenological phases, during the growing season. The K demand peaks during ripening of fruits featuring relatively high concentration of K comparable to that of the leaves. The mainstream method of apple tree K fertilization is through application of the fertilizer to the soils to improve K uptake by the roots. The bioavailability of K depends on assorted various factors, including pH, interaction with other nutrients in soil solution, temperature, and humidity. An important role in making the K from soil available for uptake by plants is played by plant growth-promoting microorganisms (PGPM), and the specific role of the PGPM is discussed. Advantages of fertigation (the combination of irrigation and fertilization) as an approach include allowing to balance application rate of K fertilizer against its variable demand by plants during the growing season. Excess K in the soil leads to competitive inhibition of calcium uptake by plants. The K-dependent deficiency of Ca leads to its predominant channeling to the leaves and hence to its decline in fruits. Consequently, the apple fruits affected by the K/Ca imbalance frequently develop physiological disorders in storage. This emphasizes the importance of the balanced K application, especially during the last months of the growing season, depending on the crop load and the actual K demand. The potential use of modern approaches to automated crop load estimation through machine vision for adjustment of K fertilization is underlined.

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Section: -Mm Fruit-picking Maturity (74-87 Bbch Scale)mentioning

confidence: 99%

Essential Role of Potassium in Apple and Its Implications for Management of Orchard Fertilization

Кузин

Solovchenko

2021

Plants

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“…For organic fertilization, each plant received 10 kg of each organic source according to treatments. The application and incorporation were performed according to Leonel and Reis (2012).…”

Section: Growing Conditions and Experimental Designmentioning

confidence: 99%

Management Systems on Production and Physicochemical Traits of Fruits of Conventionally and Organically Grown Fig1

et al. 2021

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Fig (Ficus carica L.) is widely accepted due to its organoleptic and pharmacological properties. Search for innovations to improve the crop management has increased to reduce environmental impacts and improve the organoleptic quality and food safety of the fruits. Thus, this study aimed to evaluate the influence of fertilization methods and plant training systems on the production and physicochemical traits of fig. The experiment was carried out in a randomized complete block design in a 5 × 4 factorial scheme, with three blocks and three plants per plot. The factors corresponded to five fertilizers (chemical, cattle manure, sheep manure, poultry litter, and organic compost) and four training systems (two branches, three branches, four branches, and espalier). Results showed that, when using chemical fertilizer and poultry litter, plants showed similar productivity and number of fruits, which had similar firmness, length, and peel color (L and °h). The highest production and number of immature fruits were obtained using cattle manure. Soluble solids content and soluble solids content/ titratable acidity ratio were higher in fruits from plants fertilized with cattle manure, sheep manure, and organic compost. On the other hand, plants trained with three and four branches or in espalier produced fruits with the highest soluble solids content and weight. Also, heavier fruits were obtained using chemical fertilization and conducting plants with two, three, and four branches.

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Optimizing Nutrient Integration for Enhancing Plum Growth, Fruit Yield and Leaf Nutrient Status

Shyam,

Sharma,

Sharma

et al. 2024

J Soil Sci Plant Nutr

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Potassium Fertilization on Fruits Orchards: A Study Case from Brazil

Cited by 5 publications

References 27 publications

Essential Role of Potassium in Apple and Its Implications for Management of Orchard Fertilization

Essential Role of Potassium in Apple and Its Implications for Management of Orchard Fertilization

Management Systems on Production and Physicochemical Traits of Fruits of Conventionally and Organically Grown Fig1

Optimizing Nutrient Integration for Enhancing Plum Growth, Fruit Yield and Leaf Nutrient Status

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