Response of pepper plants to NO3:NH4ratio and light intensity
- 1 May 1987
- journal article
- research article
- Published by Taylor & Francis in Journal of Plant Nutrition
- Vol. 10 (7) , 773-782
- https://doi.org/10.1080/01904168709363608
Abstract
Pepper plants were hydroponically grown in a growth chamber with two levels of light intensity (300 and 240 w/m2 ) and two N03:NH4 ratios (100:0 and 80:20). Plants supplied with both N forms (80:20) under high light conditions showed a decrease of nutrient uptake and produced low plant weight and yield compared to the all NO3 treated plants. By contrast, plants receiving both N forms (80:20) with light reduced over 25% showed a growth and yield slightly superior to plants supplied with N03 as sole source of N. This suggests a significant light intensity‐N form interaction that favors all NO3 nutrition for pepper at high light intensities.Keywords
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