ISHS Acta Horticulturae 1333: IX International Symposium on Mineral Nutrition of Fruit Crops
Nitrogen rate and frequency affect ketembilla in the nursery |
| Author: | J.P. Morales-Payan |
| Keywords: | fertilizer, tropical fruits |
| DOI: | 10.17660/ActaHortic.2022.1333.48 |
| Abstract:
Nitrogen (N) is often applied in excess in fruit crop nurseries, possibly with negative effects to the environment and the plants being fertilized. A nursery study was conducted to assess the effects of N rates and frequency of application on the growth of ketembilla (Dovyalis hebecarpa) plants in the nursery. The treatments were nitrogen rates (0.2 to 1.2 g N plant‑1) applied as drench at two frequencies, every 7 or 14 days. After 140 days of the first N application, plant height, SPAD values and leaf area were significantly greater in the regimen of 0.4 g of N applied every 7 days. Increasing N rate or frequency of application did not further enhance ketembilla growth or became detrimental to the plant. These results may assist in designing rational N fertilization programs for ketembilla in the nursery. | |
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