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Tree growth, mineral nutrition and nutrient leaching losses from soil of salinized citrus

Identifieur interne : 003B65 ( Main/Merge ); précédent : 003B64; suivant : 003B66

Tree growth, mineral nutrition and nutrient leaching losses from soil of salinized citrus

Auteurs : J. P. Syvertsen [États-Unis] ; M. L. Smith [États-Unis] ; B. J. Boman

Source :

RBID : Pascal:93-0655095

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English descriptors

Abstract

The effects of salinized irrigation water on tree canopy and root growth, water use, foliar nutrition and leaching losses below the rootzone were studied during a 2-year period using single tree lysimeters. Eighteen 6-year-old «Valencia» orange trees on either Carrizo citrange (CC) rootstock or sour orange (SO) rootstock were each transplanted into 7.8 m3 drainage lysimeters and irrigated with water having an electrical conductivity (EC) of 0.3, 1.6 or 2.5 dS m-1 using a 3:1 ratio of NaCl:CaCl2. To test for effects of the lysimeter tanks, six additional trees (three on each rootstock) were transplanted directly into soil without tanks and were also irrigated with the lowest salinity water. All trees were fertilized at recommended rates in 50 split applications per year (.)

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Pascal:93-0655095

Le document en format XML

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<title xml:lang="en" level="a">Tree growth, mineral nutrition and nutrient leaching losses from soil of salinized citrus</title>
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<s1>Univ. Florida, IFAS, citrus res. education cent.</s1>
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<country>États-Unis</country>
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<keywords scheme="KwdEn" xml:lang="en">
<term>Briny water</term>
<term>Calcium Chlorides</term>
<term>Citrus aurantium</term>
<term>Citrus sinensis</term>
<term>Electrical conductivity</term>
<term>Evapotranspiration</term>
<term>Florida</term>
<term>Growth</term>
<term>Halotolerance</term>
<term>Irrigation</term>
<term>Lysimetry</term>
<term>Nutrient</term>
<term>Nutrition</term>
<term>Salinization</term>
<term>Sodium Chlorides</term>
<term>Underground leaching</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Eau saumâtre</term>
<term>Irrigation</term>
<term>Salinisation</term>
<term>Croissance</term>
<term>Nutrition</term>
<term>Lixiviation souterraine</term>
<term>Lysimétrie</term>
<term>Halotolérance</term>
<term>Floride</term>
<term>Citrus aurantium</term>
<term>Citrus sinensis</term>
<term>Conductivité électrique</term>
<term>Sodium Chlorure</term>
<term>Calcium Chlorure</term>
<term>Nutriment</term>
<term>Evapotranspiration</term>
<term>Citrus sinensis Poncirus trifoliata</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Irrigation</term>
<term>Nutrition</term>
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<front>
<div type="abstract" xml:lang="en">The effects of salinized irrigation water on tree canopy and root growth, water use, foliar nutrition and leaching losses below the rootzone were studied during a 2-year period using single tree lysimeters. Eighteen 6-year-old «Valencia» orange trees on either Carrizo citrange (CC) rootstock or sour orange (SO) rootstock were each transplanted into 7.8 m
<sup>3</sup>
drainage lysimeters and irrigated with water having an electrical conductivity (EC) of 0.3, 1.6 or 2.5 dS m
<sup>-1</sup>
using a 3:1 ratio of NaCl:CaCl
<sub>2</sub>
. To test for effects of the lysimeter tanks, six additional trees (three on each rootstock) were transplanted directly into soil without tanks and were also irrigated with the lowest salinity water. All trees were fertilized at recommended rates in 50 split applications per year (.)</div>
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