Work

Soil, Tree, and Fruit Responses to Lime and to Type and Timing of Nitrogenous Fertilizer Applications under ‘Sturdeespur Delicious’ Apple trees1

Year: 1981

Type: article

Abstract: Incorporating high Ca lime with the soil in the planting hole for trees of ‘Sturdeespur Delicious’ apple ( Malus domestica Borkh.) on Malling-Merton 106 rootstock increased leaf Ca for the first 2 years. Annual soil applications of NH 4 NO 3 for 8 years, in comparison to applications of KNO 3 or Ca (NO 3 ) 2 , increased acidity of soil to depths of 50 to 61 cm. Soil Ca levels were reduced by NH 4 NO 3 but were not increased by Ca (NO 3 ) 2 . The trees were fertilized either 1 month prior to bloom or at bloom. Time of application or N source had no appreciable influence on tree growth, leaf nutrition, yield, fruit Ca levels, bitter pit and cork spot, or internal breakdown after storage.

Source: Journal of the American Society for Horticultural Science

DOI: 10.21273/jashs.106.5.616

Authors: William J. Lord, John H. Baker, Richard A. Damon

Institution: University of Massachusetts Amherst

Language: English

Topic: Plant Physiology and Cultivation Studies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Zero hunger, Life on land

Open Access status: hybrid

Estimated APC paid: $3,500