Abstract
Research has shown that improved nutrient uptake and yield of wild blueberries (Vaccinium angustifolium Ait) are very sporadic when fertilizers are applied. Growers are concerned with environment impacts and keeping fertilizer costs to a minimum. Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004. Commercial fertilizers (17-17-17, 1-46-0 and 13-26-5) were soil-applied in the sprout year either as a consecutive fertilizer application (every cropping cycle) or an alternate fertilizer application (every second cropping cycle). All fertilizers were applied at a rate of 200 kg ha -1 . Fertilizer applications increased soil levels of P and K, leaf tissue concentrations of N and P and stem lengths of plants. Higher levels of soil P and leaf tissue concentrations of N, P and K were observed with consecutive than with alternate fertilizer applications. Average stem lengths, buds and blossoms per stem were higher over the length of the study when fertilizers were applied consecutively compared with alternately. Fruit yields were increased compared with the unfertilized control. Within applied fertilizers treatments, fruit yield was not affected when fertilizer was applied in either consecutive or alternate cropping cycles. Alternate fertilizer applications may reduce soil accumulation of P and production costs without comprising yields. Key words: Cropping cycles, fertilization, soil and tissue nutrients, yield
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Claims 9
Claim · model-written summary
Fertilizer applications increased soil levels of P and K in wild blueberry fields.
- Taxon
- wild blueberriese0
- Treatment
- Fertilizer applicationse2
- Outcome
- soil levels of P and Ke2
- Direction
- increasede2
- Setting
- Prince Edward Island and Nova Scotiae0
Not reportedComparator
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e2“Fertilizer applications increased soil levels of P and K, leaf tissue concentrations of N and P and stem lengths of plants”
Claim · model-written summary
Fertilizer applications increased leaf tissue concentrations of N and P in wild blueberry.
- Taxon
- wild blueberriese0
- Treatment
- Fertilizer applicationse2
- Outcome
- leaf tissue concentrations of N and Pe2
- Direction
- increasede2
- Setting
- Prince Edward Island and Nova Scotiae0
Not reportedComparator
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e2“Fertilizer applications increased soil levels of P and K, leaf tissue concentrations of N and P and stem lengths of plants”
Claim · model-written summary
Fertilizer applications increased stem lengths of wild blueberry plants.
- Taxon
- wild blueberriese0
- Treatment
- Fertilizer applicationse2
- Outcome
- stem lengths of plantse2
- Direction
- increasede2
- Setting
- Prince Edward Island and Nova Scotiae0
Not reportedComparator
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e2“Fertilizer applications increased soil levels of P and K, leaf tissue concentrations of N and P and stem lengths of plants”
Claim · model-written summary
Consecutive fertilizer applications gave higher soil P levels than alternate applications in wild blueberry.
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e3“Higher levels of soil P and leaf tissue concentrations of N, P and K were observed with consecutive than with alternate fertilizer applications”
Claim · model-written summary
Consecutive fertilizer applications gave higher leaf tissue concentrations of N, P and K than alternate applications in wild blueberry.
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e3“Higher levels of soil P and leaf tissue concentrations of N, P and K were observed with consecutive than with alternate fertilizer applications”
Claim · model-written summary
Stem lengths, buds and blossoms per stem were higher when fertilizers were applied consecutively than alternately.
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e4“Average stem lengths, buds and blossoms per stem were higher over the length of the study when fertilizers were applied consecutively compared with alternately”
Claim · model-written summary
Fruit yields of wild blueberry increased with fertilizer applications compared with the unfertilized control.
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e2“Fertilizer applications increased soil levels of P and K, leaf tissue concentrations of N and P and stem lengths of plants”
e5“Fruit yields were increased compared with the unfertilized control”
Claim · model-written summary
Within fertilizer treatments, fruit yield of wild blueberry was not affected by consecutive or alternate cropping-cycle application.
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e6“Within applied fertilizers treatments, fruit yield was not affected when fertilizer was applied in either consecutive or alternate cropping cycles”
Claim · model-written summary
The authors suggest that alternate fertilizer applications may reduce soil P accumulation and production costs without compromising yield.
Verbatim
e0“Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004”
e7“Alternate fertilizer applications may reduce soil accumulation of P and production costs without comprising yields”
The same questions in other papers
fertilization · yield · VacciniumResults differ
11 papers in the same direction as this paper · 11 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
21 papers more in this group
See all 25 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.