Abstract
A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer. Results presented in this and a previous paper show that, over the range 0 to 18 lb calcium ammonium nitrate per tree per year, gross yield, shoot extension growth, annual increase in butt circumference, and leaf and fruit nitrogen content were usually in proportion to rate of fertilizer applied. In contrast, application of nitrogenous fertilizer delayed the rate of fruit ripening compared with nil nitrogen treatment and did not influence weight of prunings per tree, butt circumference per tree at any given date, flowering performance, fruit set, leaf size (dry weight) during the growing season, fruit size at harvest (dry weight), or the concentration and amount of total nitrogen in the seed at harvest. Since records were made on 20 trees only over two growing seasons and the trees were not thinned, it is suggested that the practical significance of the gross yield response should be further assessed in a conventional, long-term experiment.
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Claims 8
Claim · model-written summary
Gross yield, shoot extension growth and annual increase in butt circumference were in proportion to the calcium ammonium nitrate rate over 0 to 18 lb per tree per year.
- Taxon
- peach trees
Prunus persicae5 - Material
- Golden Queene5
- Treatment
- application rates of calcium ammonium nitrate fertilizere5
- Outcome
- gross yield, shoot extension growth, annual increase in butt circumferencee0
- Direction
- in proportione0
- Qualifier
- 0 to 18 lb calcium ammonium nitrate per tree per yeare0
- Setting
- field experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“over the range 0 to 18 lb calcium ammonium nitrate per tree per year, gross yield, shoot extension growth, annual increase in butt circumference, and leaf and fruit nitrogen content were usually in proportion to rate of fertilizer applied”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer”
Claim · model-written summary
Leaf and fruit nitrogen content were in proportion to the calcium ammonium nitrate rate.
- Taxon
- peach treesPrunus persicae5
- Material
- Golden Queene5
- Treatment
- application rates of calcium ammonium nitrate fertilizere5
- Outcome
- leaf and fruit nitrogen contente0
- Direction
- in proportione0
- Setting
- field experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“over the range 0 to 18 lb calcium ammonium nitrate per tree per year, gross yield, shoot extension growth, annual increase in butt circumference, and leaf and fruit nitrogen content were usually in proportion to rate of fertilizer applied”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer”
Claim · model-written summary
Nitrogenous fertilizer delayed the rate of fruit ripening compared with the nil nitrogen treatment.
- Taxon
- peach treesPrunus persicae5
- Treatment
- application of nitrogenous fertilizere1
- Outcome
- rate of fruit ripeninge1
- Direction
- delayede1
- Comparator
- nil nitrogen treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“application of nitrogenous fertilizer delayed the rate of fruit ripening compared with nil nitrogen treatment”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen)”
Claim · model-written summary
Calcium ammonium nitrate did not influence weight of prunings per tree, butt circumference per tree at any given date, or flowering performance.
- Taxon
- peach treesPrunus persicae5
- Material
- Golden Queene5
- Treatment
- application rates of calcium ammonium nitrate fertilizere5
- Outcome
- weight of prunings per tree, butt circumference per tree at any given date, flowering performancee2
- Direction
- did not influencee2
- Setting
- field experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“did not influence weight of prunings per tree, butt circumference per tree at any given date, flowering performance”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer”
Claim · model-written summary
Calcium ammonium nitrate did not influence fruit set or leaf size (dry weight).
- Taxon
- peach treesPrunus persicae5
- Material
- Golden Queene5
- Treatment
- application rates of calcium ammonium nitrate fertilizere5
- Outcome
- fruit set, leaf size (dry weight)e2
- Direction
- did not influencee2
- Setting
- field experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“did not influence weight of prunings per tree, butt circumference per tree at any given date, flowering performance, fruit set, leaf size (dry weight) during the growing season”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer”
Claim · model-written summary
Calcium ammonium nitrate did not influence fruit size at harvest (dry weight).
- Taxon
- peach treesPrunus persicae5
- Material
- Golden Queene5
- Treatment
- application rates of calcium ammonium nitrate fertilizere5
- Outcome
- fruit size at harvest (dry weight)e2
- Direction
- did not influencee2
- Setting
- field experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“did not influence weight of prunings per tree, butt circumference per tree at any given date, flowering performance, fruit set, leaf size (dry weight) during the growing season, fruit size at harvest (dry weight), or the concentration and amount of total nitrogen in the seed at harvest”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer”
Claim · model-written summary
Calcium ammonium nitrate did not influence the concentration and amount of total nitrogen in the seed at harvest.
- Taxon
- peach treesPrunus persicae5
- Material
- Golden Queene5
- Treatment
- application rates of calcium ammonium nitrate fertilizere5
- Outcome
- the concentration and amount of total nitrogen in the seed at harveste2
- Direction
- did not influencee2
- Setting
- field experimente5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“did not influence weight of prunings per tree, butt circumference per tree at any given date, flowering performance, fruit set, leaf size (dry weight) during the growing season, fruit size at harvest (dry weight), or the concentration and amount of total nitrogen in the seed at harvest”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen) growing under an irrigation/cultivation management system to test tree response during two consecutive growing seasons to a wide range of application rates of calcium ammonium nitrate fertilizer”
Claim · model-written summary
The practical significance of the gross yield response should be further assessed in a conventional, long-term experiment.
- Taxon
- peach treesPrunus persicae5
- Outcome
- practical significance of the gross yield responsee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“the practical significance of the gross yield response should be further assessed in a conventional, long-term experiment”
e5“A field experiment was done on mature peach trees (Cv. Golden Queen)”
The same questions in other papers
fertilization · yield · Prunus persica (peach)Results differ
49 papers in the same direction as this paper · 7 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- negative
55 papers more in this group
See all 59 papers →fertilization · phenology · Prunus persica (peach)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
fertilization · nutrient: content · Prunus persica (peach)Positive and negative results
19 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
22 papers more in this group
See all 26 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.