Abstract
ABSTRACT Soil and foliar samples were collected from saskatoon orchards in Saskatchewan, Manitoba, and Alberta, Canada from 1997 to 1999 and analyzed for macro- and micronutrient content. Foliar samples were collected twice a month from the end of May until September in 1997 to examine the pattern of change in foliar nutrient concentrations throughout the season and to determine the most stable time period for foliar sampling. This period was determined to be from the last week in July until mid-August. Nutrient concentrations of foliar samples collected during this period from 1997 to 1999 were summarized according to the mean, median, minimum, and maximum values. Mean foliar nutrient concentrations were as follows: 2.48% nitrogen (N), 0.18% phosphorus (P), 1.15% potassium (K), 0.15% sulfur (S), 1.52% calcium (Ca), 0.50% magnesium (Mg), 6.9 ppm copper (Cu), 106 ppm iron (Fe), 124 ppm manganese (Mn), 16 ppm zinc (Zn), and 27 ppm boron (B). A number of significant positive correlations were found between soil and foliar levels of a nutrient, with the majority of these correlations occurring for the nutrients Cu, P, and Mn. Another study conducted during 2001–2002 examined differences in the foliar nutrient concentrations of the saskatoon cultivars ‘Smoky’ and ‘Thiessen’ sampled from nine orchards in Saskatchewan. Foliar concentrations of N, K, S, Ca, Mg, Cu, Mn, Zn, and B were significantly higher in ‘Smoky’ than in ‘Thiessen,’ whereas foliar K content was higher in ‘Thiessen’ than in ‘Smoky’.
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Claims 15
Claim · model-written summary
The most stable period for saskatoon foliar nutrient sampling was the last week in July to mid-August.
Verbatim
t0“Saskatoon”
e0“to determine the most stable time period for foliar sampling. This period was determined to be from the last week in July until mid-August.”
Claim · model-written summary
Mean saskatoon foliar nitrogen (N) concentration was 2.48%.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“2.48% nitrogen (N)”
Claim · model-written summary
Mean saskatoon foliar phosphorus (P) concentration was 0.18%.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“0.18% phosphorus (P)”
Claim · model-written summary
Mean saskatoon foliar potassium (K) concentration was 1.15%.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“1.15% potassium (K)”
Claim · model-written summary
Mean saskatoon foliar sulfur (S) concentration was 0.15%.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“0.15% sulfur (S)”
Claim · model-written summary
Mean saskatoon foliar calcium (Ca) concentration was 1.52%.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“1.52% calcium (Ca)”
Claim · model-written summary
Mean saskatoon foliar magnesium (Mg) concentration was 0.50%.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“0.50% magnesium (Mg)”
Claim · model-written summary
Mean saskatoon foliar copper (Cu) concentration was 6.9.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“6.9 ppm copper (Cu)”
Claim · model-written summary
Mean saskatoon foliar iron (Fe) concentration was 106.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“106 ppm iron (Fe)”
Claim · model-written summary
Mean saskatoon foliar manganese (Mn) concentration was 124.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“124 ppm manganese (Mn)”
Claim · model-written summary
Mean saskatoon foliar zinc (Zn) concentration was 16.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“16 ppm zinc (Zn)”
Claim · model-written summary
Mean saskatoon foliar boron (B) concentration was 27.
Not reportedOrgan / stage
Verbatim
t0“Saskatoon”
e0“27 ppm boron (B)”
Claim · model-written summary
Soil and foliar nutrient levels had significant positive correlations, mostly for Cu, P, and Mn.
Verbatim
t0“Saskatoon”
e0“A number of significant positive correlations were found between soil and foliar levels of a nutrient, with the majority of these correlations occurring for the nutrients Cu, P, and Mn.”
Claim · model-written summary
The listed nine foliar nutrient concentrations were significantly higher in Smoky than Thiessen.
Verbatim
t0“Saskatoon”
e0“Foliar concentrations of N, K, S, Ca, Mg, Cu, Mn, Zn, and B were significantly higher in ‘Smoky’ than in ‘Thiessen,’”
e1“‘Thiessen’ than in ‘Smoky’.”
Claim · model-written summary
Foliar K was higher in Thiessen than Smoky.
Verbatim
t0“Saskatoon”
e0“foliar K content was higher in ‘Thiessen’ than in ‘Smoky’.”