Abstract
During an annual cycle, fruit trees go through developmental stages, characterised by a higher demand for some mineral elements, called critical periods, which coincide with the phenophases of bud opening and shoot initiation. Research on mineral nutrition in fruit growing has highlighted that the maximum consumption of nutrients is during the period of shoot growth, fruit development and differentiation of fruit buds. In apple, flowering is influenced more by the time of fertiliser application and the form of nitrogen than by the amount applied, as apple has high requirements for the element phosphorus in the phenophases of intense shoot growth and wood maturation. Fertilisation with NPK increased apple yield for both fertilisation treatments compared to the unfertilised control treatments. After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹, with a content of 16% dry matter, 13.13°Brix soluble matter and a titratable acidity of 0.465 mg malic acid/100 g.
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Claims 5
Claim · model-written summary
NPK fertilisation increased apple yield compared with unfertilised control treatments.
- Taxon
- apple
Malus domesticae1 - Treatment
- Fertilisation with NPKe1
- Outcome
- apple yielde1
- Direction
- increasede1
- Comparator
- unfertilised control treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Fertilisation with NPK increased apple yield for both fertilisation treatments compared to the unfertilised control treatments”
Claim · model-written summary
Applying 270 kg·ha⁻¹ NPK in the first year gave a very significant apple production increase of 4.46 t·ha⁻¹ relative to the control.
- Taxon
- appleMalus domesticat0
- Treatment
- 270 kg·ha⁻¹ NPKe2
- Outcome
- productione2
- Direction
- increasese2
- Value
- 4.46t·ha⁻¹e2
- Comparator
- unfertilised control treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹”
e1“compared to the unfertilised control treatments”
t0“QUALITY OF APPLE YIELDS”
Claim · model-written summary
Apple fruit from trees given 270 kg·ha⁻¹ NPK had a dry matter content of 16%.
- Taxon
- appleMalus domesticat0
- Treatment
- 270 kg·ha⁻¹ NPKe2
- Outcome
- dry mattere3
- Value
- 16%e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹”
e3“with a content of 16% dry matter”
t0“QUALITY OF APPLE YIELDS”
Claim · model-written summary
Apple fruit from trees given 270 kg·ha⁻¹ NPK had 13.13°Brix soluble matter.
- Taxon
- appleMalus domesticat0
- Treatment
- 270 kg·ha⁻¹ NPKe2
- Outcome
- soluble mattere4
- Value
- 13.13°Brixe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹”
e4“13.13°Brix soluble matter”
t0“QUALITY OF APPLE YIELDS”
Claim · model-written summary
Apple fruit from trees given 270 kg·ha⁻¹ NPK had a titratable acidity of 0.465 mg malic acid/100 g.
- Taxon
- appleMalus domesticat0
- Treatment
- 270 kg·ha⁻¹ NPKe2
- Outcome
- titratable aciditye5
- Value
- 0.465 mg malic acid/100 ge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After applying 270 kg·ha⁻¹ NPK in the first year of the experiment, very significant production increases were obtained, 4.46t·ha⁻¹”
e5“a titratable acidity of 0.465 mg malic acid/100 g”
t0“QUALITY OF APPLE YIELDS”
The same questions in other papers
fertilization · yield · Malus domestica (apple)Positive and negative results
149 papers in the same direction as this paper · 26 in the opposite direction · 2 reporting no difference from an alternative
- negative
- positive
- positive
174 papers more in this group
See all 178 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.