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International Journal of Agricultural Research
  Year: 2010 | Volume: 5 | Issue: 10 | Page No.: 821-831
DOI: 10.3923/ijar.2010.821.831
 
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Effects of Fertilizers Containing Calcium and/or Magnesium on the Growth, Development of Plants and the Quality of Tomato Fruits in the Western Highlands of Cameroon
Jean Aghofack- Nguemezi and Valere Tatchago

Abstract:
The study was undertaken to determine the effects of calcium and magnesium nutrients on the development of plants and subsequent postharvest conservation of tomato fruits. Tomato plants were treated by applications of N/P/K (9.5/8/10) and fertilizers containing Ca2+ and/or Mg2+. Control plants received only N/P/K. Two fertilizer combinations (N/P/K + foliar spray of Manvert Magnesium and N/P/K + calcium nitrate at 800 kg ha-1 + foliar spray of Manvert Magnesium) induced a significant delay in the flowering of plants. Combinations of soil applications of N/P/K and calcium nitrate at 200 kg ha-1 with foliar sprays of Manvert Calcium and/or Manvert Magnesium led to significant increases in the content of Ca2+ in mature-green fruits and subsequently to the delay of their ripening and the prolongation of the conservation period. Combinations of N/P/K + calcium nitrate at 200 kg ha-1 + Manvert Magnesium and N/P/K + calcium nitrate at 400 kg ha-1 + Manvert Calcium + Manvert Magnesium led to significant increases in the Mg2+ content in fruits. Fruits produced by plants that received these fertilizer combinations also showed a prolongation of the duration of ripening period and that of the conservation. The longest shelf-life was obtained after simultaneous applications on soil of N/P/K and calcium nitrate at 200 kg ha-1 and foliar sprays of Manvert Calcium and Manvert Magnesium. These results indicated that calcium and magnesium could be considered as key elements of fertilizers with regard to the delay of ripening of mature-green tomato fruits and to the prolongation of the shelf-life of the red-ripe ones.
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How to cite this article:

Jean Aghofack- Nguemezi and Valere Tatchago, 2010. Effects of Fertilizers Containing Calcium and/or Magnesium on the Growth, Development of Plants and the Quality of Tomato Fruits in the Western Highlands of Cameroon. International Journal of Agricultural Research, 5: 821-831.

DOI: 10.3923/ijar.2010.821.831

URL: https://scialert.net/abstract/?doi=ijar.2010.821.831

 
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