Models for predicting soil zinc availability for barley |
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| Authors: | X. Wu I. Aasen |
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| Affiliation: | (1) Department of Soil and Water Sciences, Agricultural University of Norway, P.O. Box 5028, N-1432 Ås, Norway;(2) Present address: Central South Forestry University, 412006 Zhuzhou City, Human, China |
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| Abstract: | Regression models are proposed for the prediction of soil zinc availability within different pH ranges. The relationship between zinc concentration in barley plants, zinc content in soils and soil pH was described using a two-dimensional diagram. Results show that the soil zinc availability is significantly affected by pH changes at pH above 6.5. Below this point, the pH effect becomes gradually less important. In the low pH range, the soil zinc availability is mainly dependent on soil zinc quantity. |
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| Keywords: | barley plants extractable Zn non-calcareous soils regression models soil alkalinity Zn availability |
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