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Use of Soil, Water and Leaf Analyses in Growing Oranges in Jordan
Published online by Cambridge University Press: 03 October 2008
Summary
Soil, water and leaf analyses were carried out on samples from irrigated orchards in the Jordan Valley. Analysis of the soil for available phosphorus and potassium gave meaningful results. Analysis of the irrigation water showed that a high sodium and chloride content caused an increase of these ions in the soil, which led to undesirable effects such as chlorosis. Irrigation water class C3–S1 should only be used if there is an annual precipitation of about 300 mm. Leaf analysis showed changes in the composition of leaves with age, but only potassium varied significantly between varieties. Standards of leaf, soil and water composition are suggested for the growing of citrus.
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- Copyright © Cambridge University Press 1967
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