Interaction between chloride and both macro- and micronutrients in annual canarygrass
| Autor: | William Earl May, Michael MacGregor |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Canadian Journal of Plant Science. 102:731-743 |
| ISSN: | 1918-1833 0008-4220 |
| DOI: | 10.1139/cjps-2021-0157 |
| Popis: | Annual canarygrass (Phalaris canariensis L.) has a larger response to chloride (Cl−) fertilizer than other cereal crops. This unexpected response prompted further research for unexpected interactions between Cl− and other nutrients in annual canaryseed. The objective of this study was to compare the interaction of macronutrients and micronutrients with Cl− on the development and grain yield of annual canarygrass. Thirteen fertilizer combinations were applied to determine the effect of macro- and micronutrients on annual canarygrass. A field study was conducted at six locations across Saskatchewan over a 4 yr period using a randomize complete block design. Grain yield had a strong chloride response at 7 of the 21 site years with a 70% increase in grain yield over the 7 site-years. A sideband application or surface application of Cl− were both effective. At the responsive sites without the addition of Cl−, the addition of other nutrients is not effective while at the non-responsive sites, responses to the nutrients can be achieved without the addition of Cl−. Chloride impacted canarygrass during reproductive development. Nitrogen is the major nutrient Cl− interacted with in this study. Canarygrass is not more responsive to phosphorus, potassium, sulfur, zinc, copper, manganese, and boron than other cereals. In conclusion, at Cl−-responsive sites the application of nutrients are ineffective in the absence of Cl− fertilizer. In addition, the sensitivity of annual canarygrass to Cl− indicates that it could be used to investigate the role of Cl− in cereal crop development and grain yield. |
| Databáze: | OpenAIRE |
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