ArticlePlants (Basel, Switzerland)2020
Correction of Potassium Fertigation Rate of Apple Tree (
Article in Plants (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Impacts of N-P-K-Mg Fertilizer Combinations on Tree Parameters and Fungal Disease Incidences in Apple Cultivars with Varying Disease Susceptibility.Plants (Basel, Switzerland) · 2024Article
- Melatonin enhances KCl salinity tolerance by maintaining KPlant biotechnology journal · 2023Article
- The Features of Potassium Dynamics in 'Soil-Plant' System of Sour Cherry Orchard.Plants (Basel, Switzerland) · 2023Article
- Effects of Plasma-Activated Water on Leaf and Fruit Biochemical Composition and Scion Growth in Apple.Plants (Basel, Switzerland) · 2023Article
- Essential Role of Potassium in Apple and Its Implications for Management of Orchard Fertilization.Plants (Basel, Switzerland) · 2021Review
- New Insights of Potassium Sources Impacts as Foliar Application on 'Canino' Apricot Fruit Yield, Fruit Anatomy, Quality and Storability.Plants (Basel, Switzerland) · 2021Article
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Authors and funding
4 authors.
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Abstract
The proper use of potassium fertilizer can stimulate a significant yield increase. However, the application of excessively high rates of potassium can reduce the availability of soil calcium for apple trees. The potassium fertigation rate must meet the apple tree's requirements so that the applied fertilizers can be absorbed by the roots as much as possible. Crop load in apple orchards sometimes varies significantly in different years. The potassium content in apple fruits is relatively high, and the maximum requirement for this nutrient occurs when fruits grow and ripen. Different crop loads at that time mean the various demands of trees and need for changing application rates for this nutrient. The investigation was carried out in the experimental orchard of I.V. Michurin Federal Scientific Centre (Michurinsk, Russia) in 2016 and 2017 (52.885131, 40.465613). We studied seasonal changes of potassium and calcium contents in soil, fruits, and leaves and their relationship with yield during the research. We paid much attention to the potassium rate shift on its content in leaves and fruits and cultivars "Lobo" and "Zhigulevskoye" yield. If the potassium application rate changes according to the actual crop load, it stimulates the yield growth or (if the crop load was relatively low) the reduction of the rate did not lower the productivity. Moreover, we studied the relationship between potassium and calcium nutrition. The decrease in potassium fertigation rate increased the availability of soil calcium. It was the reason for fruit calcium concentration enlargement and mitigation of the K/Ca ratio. We also specified some parameters for soil-leaf diagnosis for potassium nutrition during the growing season.
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