Abstract
Following 13‐year treatments of soil pH and nitrogen (N) source in a peach orchard of North Carolina, the concentration of calcium (Ca), magnesium (Mg), N, phosphorus (P), and potassium (K) in leaves, shoots, trunks and roots, as well as soil pH, soil exchangeable Ca, Mg, and K content, were determined. Through liming, higher soil pH treatment enhanced soil Ca and tissue Ca level. Among six N sources examined, the highest values of soil pH and soil Ca, Mg, and K were detected following poultry manure application. Compared to ammonium sulfate [(NH4)2SO4], calcium nitrate [Ca(NO3)2] increased soil pH and soil Ca and K content, but reduced soil Mg. For most of macronutrients examined in peach tissues, the highest levels were found in manure treatment. Mineral N sources containing Ca(NO3)2 resulted in high tissue Ca and low tissue N. In the above‐ground tissues, Mg concentration was relatively low following application of mineral N materials containing Ca, K, or sodium (Na). Acid‐ forming N, especially (NH4)2SO4, reduced tissue Ca and P. The magnitude of impact of liming and N source on macronutrients was tissue‐type dependent, with leaves and other new growth the most sensitive ones while trunks seldom responded to the treatments.
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Claims 2
Claim · model-written summary
Liming enhanced soil calcium and tissue calcium.
- Taxon
- peach
Prunus persicat0 - Treatment
- liminge0
- Outcome
- soil Ca and tissue Ca levele0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Through liming, higher soil pH treatment enhanced soil Ca and tissue Ca level”
t0“peach”
Claim · model-written summary
Manure yielded the highest tissue macronutrient levels for most nutrients.
- Taxon
- peachPrunus persicae0
- Treatment
- manure treatmente0
- Outcome
- macronutrients examined in peach tissuese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For most of macronutrients examined in peach tissues, the highest levels were found in manure treatment”
The same questions in other papers
lime · nutrient: content · Prunus persica (peach)Positive and negative results
2 in the opposite direction
- no effect
- no effect
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.