Abstract
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.
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Claims 7
Claim · model-written summary
Chloride increased grain yield by 70% at seven responsive site years.
- Taxon
- canarygrass
Phalaris aquaticat0 - Treatment
- chloridee0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 70%e0
- Qualifier
- 7 of the 21 site yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
t0“annual canarygrass”
Claim · model-written summary
Both sideband and surface chloride application were effective.
- Taxon
- canarygrassPhalaris aquaticat0
- Treatment
- Cl −e0
- Outcome
- both effectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A sideband application or surface application of Cl − were both effective”
t0“annual canarygrass”
Claim · model-written summary
Other nutrients were ineffective without chloride at responsive sites.
- Taxon
- canarygrassPhalaris aquaticat0
- Treatment
- addition of other nutrientse0
- Outcome
- not effectivee0
- Direction
- not effectivee0
- Comparator
- without the addition of Cl −e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the responsive sites without the addition of Cl − , the addition of other nutrients is not effective”
t0“annual canarygrass”
Claim · model-written summary
At nonresponsive sites, nutrient responses occurred without chloride.
- Taxon
- canarygrassPhalaris aquaticat0
- Outcome
- responses to the nutrientse0
- Qualifier
- non-responsive sitese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the non-responsive sites, responses to the nutrients can be achieved without the addition of Cl −”
t0“annual canarygrass”
Claim · model-written summary
Chloride affected canarygrass reproductive development.
- Taxon
- canarygrassPhalaris aquaticat0
- Treatment
- Chloridee0
- Outcome
- reproductive developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chloride impacted canarygrass during reproductive development”
t0“annual canarygrass”
Claim · model-written summary
Nitrogen was the main nutrient interacting with chloride.
- Taxon
- CanarygrassPhalaris aquaticat0
- Treatment
- Nitrogene0
- Outcome
- major nutrient Cl − interacted withe0
- Direction
- interacted withe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen is the major nutrient Cl − interacted with in this study”
t0“annual canarygrass”
Claim · model-written summary
Canarygrass was not more responsive to phosphorus, potassium, sulfur, zinc, copper, manganese, and boron than other cereals.
- Taxon
- CanarygrassPhalaris aquaticat0
- Outcome
- responsive to phosphorus, potassium, sulfur, zinc, copper, manganese, and borone0
- Direction
- not more responsivee0
- Comparator
- other cerealse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Canarygrass is not more responsive to phosphorus, potassium, sulfur, zinc, copper, manganese, and boron than other cereals”
t0“annual canarygrass”