Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees

In Chile, expansion of avocado production has resulted in many orchards established in marginal soils that are poorly drained and have high soil water-to-air ratios when soil moisture is at field capacity. However, avocado trees are sensitive to poor soil aeration. A study was conducted to determine...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Gil,P.M, Bonomelli,C, Schaffer,B, Ferreyra,R, Gentina,C
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2012
Materias:	mineral nutrition nutrient uptake soil aeration avocado
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300020
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-95162012000300020
record_format	dspace
spelling	oai:scielo:S0718-951620120003000202014-03-10Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado treesGil,P.MBonomelli,CSchaffer,BFerreyra,RGentina,C mineral nutrition nutrient uptake soil aeration avocado In Chile, expansion of avocado production has resulted in many orchards established in marginal soils that are poorly drained and have high soil water-to-air ratios when soil moisture is at field capacity. However, avocado trees are sensitive to poor soil aeration. A study was conducted to determine the effects of different soil water-to-air ratios (W/A) on biomass and nutrient content of avocado trees. Two-year-old avocado trees were grown for 2 seasons in containers in soils, with different W/A, collected from different avocado growing regions of Chile. There were five treatments corresponding to each of the five soils. At field capacity, the two-season average W/A was 1.7, 1.3, 0.6, 0.4 or 0.3 for treatments T1, T2, T3, T4, or T5, respectively. The same amount of fertilizer was applied to each soil. Mineral element concentrations and total mineral element contents in leaves, shoots, wood and roots were determined for each tree in each treatment at the end of the experimental period. Shoot and root fresh and dry weights, leaf area and leaf retention were also determined. Although all treatments showed non-limiting soil oxygen conditions for avocado root growth, trees in soils with lower W/A had greater shoot and root dry weights and longer autumn leaf retention. Macro- and micronutrient concentrations in any plant tissue were not related to soil W/A. However, total tissue contents of N, P, K, Ca, Mg, C, N and B in roots and whole plants were highest in treatments with lower soil W/A. The results indicate that soil W/A significantly affects growth and mineral nutrition of avocado trees and should be considered for avocado site selection and management.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.12 n.3 20122012-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300020en10.4067/S0718-95162012005000020
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	mineral nutrition nutrient uptake soil aeration avocado
spellingShingle	mineral nutrition nutrient uptake soil aeration avocado Gil,P.M Bonomelli,C Schaffer,B Ferreyra,R Gentina,C Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
description	In Chile, expansion of avocado production has resulted in many orchards established in marginal soils that are poorly drained and have high soil water-to-air ratios when soil moisture is at field capacity. However, avocado trees are sensitive to poor soil aeration. A study was conducted to determine the effects of different soil water-to-air ratios (W/A) on biomass and nutrient content of avocado trees. Two-year-old avocado trees were grown for 2 seasons in containers in soils, with different W/A, collected from different avocado growing regions of Chile. There were five treatments corresponding to each of the five soils. At field capacity, the two-season average W/A was 1.7, 1.3, 0.6, 0.4 or 0.3 for treatments T1, T2, T3, T4, or T5, respectively. The same amount of fertilizer was applied to each soil. Mineral element concentrations and total mineral element contents in leaves, shoots, wood and roots were determined for each tree in each treatment at the end of the experimental period. Shoot and root fresh and dry weights, leaf area and leaf retention were also determined. Although all treatments showed non-limiting soil oxygen conditions for avocado root growth, trees in soils with lower W/A had greater shoot and root dry weights and longer autumn leaf retention. Macro- and micronutrient concentrations in any plant tissue were not related to soil W/A. However, total tissue contents of N, P, K, Ca, Mg, C, N and B in roots and whole plants were highest in treatments with lower soil W/A. The results indicate that soil W/A significantly affects growth and mineral nutrition of avocado trees and should be considered for avocado site selection and management.
author	Gil,P.M Bonomelli,C Schaffer,B Ferreyra,R Gentina,C
author_facet	Gil,P.M Bonomelli,C Schaffer,B Ferreyra,R Gentina,C
author_sort	Gil,P.M
title	Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
title_short	Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
title_full	Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
title_fullStr	Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
title_full_unstemmed	Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
title_sort	effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300020
work_keys_str_mv	AT gilpm effectofsoilwatertoairratioonbiomassandmineralnutritionofavocadotrees AT bonomellic effectofsoilwatertoairratioonbiomassandmineralnutritionofavocadotrees AT schafferb effectofsoilwatertoairratioonbiomassandmineralnutritionofavocadotrees AT ferreyrar effectofsoilwatertoairratioonbiomassandmineralnutritionofavocadotrees AT gentinac effectofsoilwatertoairratioonbiomassandmineralnutritionofavocadotrees
_version_	1714206435667083264

Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees

Ejemplares similares