Ammonium Reduction of Calcium and Magnesium Content of Tomato and Sweet Corn Leaf Tissue and Influence on Incidence of Blossom End Rot of Tomato Fruit1
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- Gerald E. Wilcox
- Purdue University, Lafayette, Indiana
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- Johan E. Hoff
- Purdue University, Lafayette, Indiana
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- Charles M. Jones
- Purdue University, Lafayette, Indiana
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説明
<jats:title>Abstract</jats:title> <jats:p>Fertilization of tomato and sweetcorn seedlings with NH<jats:sub>4</jats:sub>-N generally resulted in growth reduction as well as reduced contents of Ca and Mg in the tissues to deficient or nearly deficient levels. The effects were more pronounced on tomatoes than on corn. Fertilization of plants, with a combination of NO<jats:sub>3</jats:sub> + NH<jats:sub>4</jats:sub>-N resulted in Ca and Mg levels in the tissue intermediate between that of plants receiving NH<jats:sub>4</jats:sub>-N or NO<jats:sub>3</jats:sub>-N. Ammonium N applied during fruiting of tomato plants resulted in rapid development of blossom-end rot of the fruit, probably due to the influence of NH<jats:sub>4</jats:sub>-N on Ca uptake.</jats:p>
収録刊行物
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- Journal of the American Society for Horticultural Science
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Journal of the American Society for Horticultural Science 98 (1), 86-89, 1973-01
American Society for Horticultural Science
