Commercial validation of a modified method for delivering low nitrogen, phosphorus, and potassium inputs to greenhouse-grown subirrigated pot chrysanthemums
| Autor: | Lou M Schenck, Edward J. Flaherty, William J. Sutton, Barry J. Shelp, Jamie Aalbers |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Low nitrogen Phosphorus Potassium chemistry.chemical_element Greenhouse 04 agricultural and veterinary sciences Plant Science Horticulture 01 natural sciences Nutrient Agronomy chemistry Subirrigation 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Canadian Journal of Plant Science. 101:962-966 |
| ISSN: | 1918-1833 0008-4220 |
| DOI: | 10.1139/cjps-2020-0294 |
| Popis: | Subirrigation systems are popular for reducing nutrient usage in indoor floricultural production. Two open subirrigation experiments were conducted in a commercial setting using multiple chrysanthemum cultivars and up to 75% less N–P–K than industry standards. The lowest N–P–K levels supplied in the nutrient solution (in mmol·L−1: 5.4 N, 0.71−0.97 P, 1.9−4.1 K) up to bud break, were associated with acceptable leaf N–P–K levels [4.5−5.4% dry matter (DM), 0.23−0.60% DM, and 3.3−5.6% DM, respectively]. These findings validate our modified delivery practice and the use of lower N–P–K inputs in the production of subirrigated pot chrysanthemums. |
| Databáze: | OpenAIRE |
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