THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS

During an annual cycle, fruit trees go through developmental stages, characterised by a higher demand for some mineral elements, called critical periods, which coincide with the phenophases of bud opening and shoot initiation. Research on mineral nutrition in fruit growing has highlighted that the m...

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Main Authors: Diana Elena BOLOHAN, Mariana VOLF, Lucian RĂUS
Format: Article
Language:English
Published: "Ion Ionescu de la Brad" Iasi University of Life Sciences 2023-06-01
Series:Journal of Applied Life Sciences and Environment
Subjects:
Online Access:https://jurnalalse.com/wp-content/uploads/ALSE1-2023-06.pdf
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author Diana Elena BOLOHAN
Mariana VOLF
Lucian RĂUS
author_facet Diana Elena BOLOHAN
Mariana VOLF
Lucian RĂUS
author_sort Diana Elena BOLOHAN
collection DOAJ
description During an annual cycle, fruit trees go through developmental stages, characterised by a higher demand for some mineral elements, called critical periods, which coincide with the phenophases of bud opening and shoot initiation. Research on mineral nutrition in fruit growing has highlighted that the maximum consumption of nutrients is during the period of shoot growth, fruit development and differentiation of fruit buds. In apple, flowering is influenced more by the time of fertiliser application and the form of nitrogen than by the amount applied, as apple has high requirements for the element phosphorus in the phenophases of intense shoot growth and wood maturation. Fertilisation with NPK increased apple yield for both fertilisation treatments compared to the unfertilised control treatments. After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹, with a content of 16% dry matter, 13.13°Brix soluble matter and a titratable acidity of 0.465 mg malic acid/100 g.
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issn 2784-0379
2784-0360
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publishDate 2023-06-01
publisher "Ion Ionescu de la Brad" Iasi University of Life Sciences
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spelling doaj-art-e69a5b9d2452445484d89c8dc9c812142025-08-20T02:21:03Zeng"Ion Ionescu de la Brad" Iasi University of Life SciencesJournal of Applied Life Sciences and Environment2784-03792784-03602023-06-01561(193)7584https://doi.org/10.46909/alse-561086THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDSDiana Elena BOLOHAN0Mariana VOLF1Lucian RĂUS2Department of Pedotechnics, Faculty of Agriculture, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 3, Mihail Sadoveanu Alley, 700490, Iasi, RomaniaDepartment of Pedotechnics, Faculty of Agriculture, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 3, Mihail Sadoveanu Alley, 700490, Iasi, RomaniaDepartment of Pedotechnics, Faculty of Agriculture, “Ion Ionescu de la Brad” Iasi University of Life Sciences, 3, Mihail Sadoveanu Alley, 700490, Iasi, RomaniaDuring an annual cycle, fruit trees go through developmental stages, characterised by a higher demand for some mineral elements, called critical periods, which coincide with the phenophases of bud opening and shoot initiation. Research on mineral nutrition in fruit growing has highlighted that the maximum consumption of nutrients is during the period of shoot growth, fruit development and differentiation of fruit buds. In apple, flowering is influenced more by the time of fertiliser application and the form of nitrogen than by the amount applied, as apple has high requirements for the element phosphorus in the phenophases of intense shoot growth and wood maturation. Fertilisation with NPK increased apple yield for both fertilisation treatments compared to the unfertilised control treatments. After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹, with a content of 16% dry matter, 13.13°Brix soluble matter and a titratable acidity of 0.465 mg malic acid/100 g.https://jurnalalse.com/wp-content/uploads/ALSE1-2023-06.pdfdry weightsoil fertilisationsoluble substancetitratable acidity
spellingShingle Diana Elena BOLOHAN
Mariana VOLF
Lucian RĂUS
THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS
Journal of Applied Life Sciences and Environment
dry weight
soil fertilisation
soluble substance
titratable acidity
title THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS
title_full THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS
title_fullStr THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS
title_full_unstemmed THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS
title_short THE INFLUENCE OF MINIMAL NPK FERTILISATION ON THE QUANTITY AND QUALITY OF APPLE YIELDS
title_sort influence of minimal npk fertilisation on the quantity and quality of apple yields
topic dry weight
soil fertilisation
soluble substance
titratable acidity
url https://jurnalalse.com/wp-content/uploads/ALSE1-2023-06.pdf
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