Effects of decreasing levels of n amendments on organic “granny smith” apple trees

Effects of decreasing levels of n amendments on organic “granny smith” apple trees

The effect of decreasing levels of organic N-fertilization on fruit production, mineral composition and fruit quality was evaluated in organically cultivated “Granny Smith” apples trees. Treatments included the application of decreasing levels of N fertilization (100 kg N ha-1, 7...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: von Bennewitz,E, Cooper,T, Losak,T, Hlusek,J, Carrasco-Benavides,M
Lenguaje:English
Publicado: Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:
physiological disorders
volcanic soils
Ca
Mg
K
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400013
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:scielo:S0718-95162015000400013
record_format dspace
spelling oai:scielo:S0718-951620150004000132016-01-14Effects of decreasing levels of n amendments on organic “granny smith” apple treesvon Bennewitz,ECooper,TLosak,THlusek,JCarrasco-Benavides,M physiological disorders volcanic soils Ca Mg K The effect of decreasing levels of organic N-fertilization on fruit production, mineral composition and fruit quality was evaluated in organically cultivated “Granny Smith” apples trees. Treatments included the application of decreasing levels of N fertilization (100 kg N ha-1, 75 kg N ha-1, 50 kg N ha-1 and 0 kg N ha-1 ) applied as fossilized red guano (50% of the total amount of N) and blood meal (50% of the total amount of N) to twelve years old Granny Smith apple trees. Yield was not affected by the treatments (yield ranged from 0.28 to 0.4 kg cm-2 SCSA). Fruit mineral concentration and ratios were not affected by treatments. Fruits showed low Ca concentrations (2.8 to 3.3 mg Ca 100 g-1 FW), high levels of K (118.6 to 130.1 mg K 100 g-1 FW) and high values for K+Mg/Ca (> 12) and K/Ca (> 30) ratios. Mineral concentration on leaves was not affected by treatments (normal concentrations for macro and microelements). Bitter pit was only detected after 60 days of storage (100 kg N ha-1 tree, 1.1 in a scale 1-4). Besides orchard nitrogen management, fruit mineral ratios and Ca foliar applications should be considered for managing fruit production and quality in organic apples.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.4 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400013en10.4067/S0718-95162015005000068
institution Scielo Chile
collection Scielo Chile
language English
topic physiological disorders
volcanic soils
Ca
Mg
K
spellingShingle physiological disorders
volcanic soils
Ca
Mg
K
von Bennewitz,E
Cooper,T
Losak,T
Hlusek,J
Carrasco-Benavides,M
Effects of decreasing levels of n amendments on organic “granny smith” apple trees
description The effect of decreasing levels of organic N-fertilization on fruit production, mineral composition and fruit quality was evaluated in organically cultivated “Granny Smith” apples trees. Treatments included the application of decreasing levels of N fertilization (100 kg N ha-1, 75 kg N ha-1, 50 kg N ha-1 and 0 kg N ha-1 ) applied as fossilized red guano (50% of the total amount of N) and blood meal (50% of the total amount of N) to twelve years old Granny Smith apple trees. Yield was not affected by the treatments (yield ranged from 0.28 to 0.4 kg cm-2 SCSA). Fruit mineral concentration and ratios were not affected by treatments. Fruits showed low Ca concentrations (2.8 to 3.3 mg Ca 100 g-1 FW), high levels of K (118.6 to 130.1 mg K 100 g-1 FW) and high values for K+Mg/Ca (> 12) and K/Ca (> 30) ratios. Mineral concentration on leaves was not affected by treatments (normal concentrations for macro and microelements). Bitter pit was only detected after 60 days of storage (100 kg N ha-1 tree, 1.1 in a scale 1-4). Besides orchard nitrogen management, fruit mineral ratios and Ca foliar applications should be considered for managing fruit production and quality in organic apples.
author von Bennewitz,E
Cooper,T
Losak,T
Hlusek,J
Carrasco-Benavides,M
author_facet von Bennewitz,E
Cooper,T
Losak,T
Hlusek,J
Carrasco-Benavides,M
author_sort von Bennewitz,E
title Effects of decreasing levels of n amendments on organic “granny smith” apple trees
title_short Effects of decreasing levels of n amendments on organic “granny smith” apple trees
title_full Effects of decreasing levels of n amendments on organic “granny smith” apple trees
title_fullStr Effects of decreasing levels of n amendments on organic “granny smith” apple trees
title_full_unstemmed Effects of decreasing levels of n amendments on organic “granny smith” apple trees
title_sort effects of decreasing levels of n amendments on organic “granny smith” apple trees
publisher Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate 2015
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400013
work_keys_str_mv AT vonbennewitze effectsofdecreasinglevelsofnamendmentsonorganic8220grannysmith8221appletrees
AT coopert effectsofdecreasinglevelsofnamendmentsonorganic8220grannysmith8221appletrees
AT losakt effectsofdecreasinglevelsofnamendmentsonorganic8220grannysmith8221appletrees
AT hlusekj effectsofdecreasinglevelsofnamendmentsonorganic8220grannysmith8221appletrees
AT carrascobenavidesm effectsofdecreasinglevelsofnamendmentsonorganic8220grannysmith8221appletrees
_version_ 1714206516607713280

Ejemplares similares