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Evaluation of a nitrogen leaching mineralization model for sugar beet

Plant & Soil 101(1): 61-66

Evaluation of a nitrogen leaching mineralization model for sugar beet

Tests were made of the ability of a leaching/mineralization model to predict the amounts of mineral N in the soil in spring as a step towards estimating the nitrogen fertilizer requirement of sugar-beet crops. There was good agreement between predicted and measured values, both under conditions of natural winter rainfall and when the soil was covered to prevent leaching. The model also successfully predicted leaching losses of soil mineral N soon after drilling in a year in which early season irrigation and heavy rain induced considerable leaching.

Accession: 005395461

Related references

Allison, M.F.; Pocock, T.O.; Armstrong, M.J., 1992: Use of a nitrate leaching model to predict spring soil mineral nitrogen contents in sugar beet (Beta vulgaris) fields. Between 1985 and 1988 experiments were conducted to evaluate an improved version of SLIM (solute leaching intermediate model). SLIM was used to estimate spring soil mineral nitrogen (SMN) values from measured autumn or winter values. Sites were se...

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