Abstract
This study examined the effects of solid poultry layer manure addition on soil N processes and on dry matter and N accumulation in red raspberry (Rubus idaeus L.). In trials conducted in two years, approximately 50% of the 400 kg total N ha −1 applied as manure was recovered as soil inorganic N 1 mo after manure application when manure was incorporated within 4 h of application. Three trials were conducted in two commercial raspberry fields: one with no history of manure use and one other with a history of heavy annual applications of poultry manure. Treatments included 55 kg N ha −1 as NH 4 NO 3 , 100 or 200 kg total N ha −1 as manure, and a control that received no manure or fertilizer N. Soil inorganic N to 60 cm depth was measured throughout the growing season. Berry yield was estimated, and dry matter and N accumulation was determined in floricanes at first berry ripening and in primocanes at the end of the growing season. Few significant effects of N fertilization were measured for any crop yield, growth or N accumulation parameter. This was attributed to the large (>150 kg N ha −1 ) supply of N to the crop in the unamended soil, primarily from soil N mineralization. Dry matter accumulation in the fruiting clusters was strongly correlated to estimated berry yield, and may provide a simple means for assessing relative yield within experiments. Soil nitrate measured in August after berry harvest may serve as a "report card" to assess N management in the current growing season, to refine fertilizer N management for subsequent growing seasons, and as an index of the risk of nitrate leaching over the following fall and winter in south coastal British Columbia. Key words: Nitrogen mineralization, nitrate leaching, manure N availability, Rubus idaeus
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Claims 6
Claim · model-written summary
About 50% of the total N applied as poultry manure was recovered as soil inorganic N one month after application when incorporated within 4 h.
- Taxon
- red raspberry
_Rubus_idaeus_-_Feuillage.jpg?width=60)
Rubus idaeust0 - Outcome
- soil inorganic Ne1
- Value
- approximately 50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Rubus_idaeus_-_Feuillage.jpg?width=500)
Verbatim
t0“in red raspberry”
e0“approximately 50% of the 400 kg total N”
e1“was recovered as soil inorganic N 1 mo after manure application when manure was incorporated within 4 h of application”
Claim · model-written summary
Few significant effects of N fertilization were measured for red raspberry crop yield, growth or N accumulation.
- Taxon
- red raspberryRubus idaeust0
- Treatment
- N fertilizatione0
- Outcome
- crop yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in red raspberry”
e0“Few significant effects of N fertilization were measured for any crop yield, growth or N accumulation parameter”
Claim · model-written summary
Dry matter accumulation in the fruiting clusters of red raspberry was strongly correlated with estimated berry yield.
- Taxon
- red raspberryRubus idaeust0
- Organ / stage
- fruiting clusterse0
- Outcome
- Dry matter accumulation in the fruiting clusterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in red raspberry”
e0“Dry matter accumulation in the fruiting clusters was strongly correlated to estimated berry yield”
Claim · model-written summary
Dry matter accumulation in the fruiting clusters may provide a simple means for assessing relative yield within red raspberry experiments.
- Taxon
- red raspberryRubus idaeust0
- Outcome
- assessing relative yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in red raspberry”
e0“may provide a simple means for assessing relative yield within experiments”
Claim · model-written summary
Soil nitrate measured in August after berry harvest may serve as a report card for N management in red raspberry.
- Taxon
- red raspberryRubus idaeust0
- Outcome
- Soil nitrate measured in August after berry harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in red raspberry”
e0“Soil nitrate measured in August after berry harvest may serve as a”
Claim · model-written summary
Soil nitrate in red raspberry fields was proposed as an index of nitrate leaching risk over fall and winter in south coastal British Columbia.
- Taxon
- red raspberryRubus idaeust0
- Outcome
- risk of nitrate leachinge0
- Setting
- south coastal British Columbiae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in red raspberry”
e0“as an index of the risk of nitrate leaching over the following fall and winter in south coastal British Columbia”
The same questions in other papers
fertilization · yield · Rubus idaeus (red raspberry)Positive and negative results
4 papers in the same direction as this paper · 15 in the opposite direction
- positive
- no effect
- positive
16 papers more in this group
See all 20 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.