Nitrogen partitioning in apple as affected by timing and tree growth habit

Khemira, Habib; Righetti, Timothy L.; Azarenko, Anita N.

doi:10.1080/14620316.1998.11510967

Cited by 35 publications

(33 citation statements)

References 15 publications

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“…There are different viewpoints about whether root storage N for using in following year (Titus and Kang, 1982). Root N nutrition during the period of dormancy may be a larger storage organ of N (Millard, 1995;Khemira et al, 1998;Tagliavini et al, 1999;Sun et al, 2002).…”

Section: Discussionmentioning

confidence: 96%

¹⁵NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

Zhang

Han

Zhao

et al. 2012

Journal of Plant Nutrition

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2 Total nitrogen (N) concentration (N%), N derived from 15 N-fertilizer (Ndff%), amount of 15 N uptake (ANU) in main organs (leaves, shoots, roots, fruits), and N use efficiency (NUE) were measured to assess N absorption, distribution, and utilization of Red Fuji apple trees across two years using a 15 N-enriched urea method. The N% in leaves and fruits decreased while those in shoots and roots increased in both years. The Ndff% and ANU in roots were highest at fruitlet stage than those in leaves, shoots and fruits at mature stages. This suggested that the absorbed 15 N by roots was redistributed to new organs. The N% was lower while Ndff% and ANU were greater in 2008 than 2007. The most 15 N absorbed was accumulated in the trunks, main and coarse roots and smaller in the fine roots and biennial branches. The NUE in 2007 and 2008 reached 9.9% and 12.2% respectively.

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Section: Discussionmentioning

confidence: 96%

¹⁵NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

Zhang

Han

Zhao

et al. 2012

Journal of Plant Nutrition

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“…Early application of a chemical fertiliser increased T-N concentrations in above-ground tissues rather than in the roots of apple trees (Khemira et al, 1998;Toselli et al, 2000). In both 2009 and 2010, leaf SPAD values, which estimate leaf chlorophyll contents, were greater than 60 in the single and two-split application plots, and leaf T-N concentrations were also higher in 2010 compared to the zero application plots (Table 2).…”

Section: The Journal Of Horticultural Science and Biotechnologymentioning

confidence: 87%

“…Applying soluble-N fertigation at various times had significant effects on vegetative growth, fruit quality, the amount of nutrients stored in woody parts, susceptibility to freezing injury, and subsequent control of new growth in the following season in apple trees (Khemira et al, 1998;Neilsen & Neilsen, 2003;Toselli et al, 2000). The application of soluble-N in early autumn resulted in more N compounds being stored in apple tree roots, increased initial fruit growth, and improved fruit quality in the following season compared to an early spring application, which stimulated vegetative tree growth and intensified tree shading (De Angelis et al, 2011;Dong et al, 2005;Khemira et al, 1998;Nava et al, 2008;Toselli et al, 2000). However, a single application of a soluble fertiliser in the spring was more effective at improving fruit skin colour, nutrient concentrations, and flavour than a split (spring and autumn) application in peach (Olienyk et al, 1997) and apple trees (Drake et al, 2002), while return bloom and fruit yields were adversely affected.…”

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confidence: 99%

Effect of split applications of oil cake on leaf nutrient contents, tree growth, and fruit quality in non-astringent persimmon trees

Kim

Cho

et al. 2016

The Journal of Horticultural Science and Biotechnology

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“…However, it is still believed that soil N applications cannot be completely substituted for by foliar N applications (Mengel 2002). It is possible that the combination of soil and foliar N applications may be a more efficient use of N and reduces N loss (Fallahi and Simons 1996;Khemira, Righetti, and Azarenko 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Seasonal changes in the amount and kinetics of N uptake are important in guiding N fertilization practices (Khemira et al 1998;Niederholzer et al 2001;Policarpo et al 2002). The timing and method of N application (e.g., soil versus foliar N application) during the growing season may influence N uptake as well as plant growth and function.…”

Section: Introductionmentioning

confidence: 99%

Method of Nitrogen Application in Summer Affects Plant Growth and Nitrogen Uptake in Autumn in Young Fuji/M.26 Apple Trees

Dong

Cheng

Fuchigami

2005

Communications in Soil Science and Plant Analysis

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Effects of foliar vs. soil nitrogen (N) application during the summer and the autumn were studied in young Fuji apple trees (Malus domestica Borkh) on Malling 26 (M.26) rootstock. One-year-old bench-grafted trees were potted in 3.8-liter pots in a mix of perlite, peat moss, and loam soil (1:1:1 by volume) and were treated weekly from late June to early September with 0.5% urea either by foliar or soil application or soil application of water (control). At the end of September, five trees from each treatment were harvested, and shoot and root growth and leaf N concentration were determined. In mid-October of the same year, trees from each treatment were randomly divided into three subgroups. One group received soil application of water (control), and the other groups received either a foliar or soil application of 3% 15 Nurea. After natural leaf defoliation, trees were harvested, and total N and concentration of stems (all aboveground tissue) and roots was determined. Regardless of application method, N application during the summer promoted plant growth and increased leaf N concentration. Soil N application during the summer stimulated more shoot and extension root growth than foliar N application. In contrast, the foliar N application in the summer promoted more feeder root growth than soil N application. Regardless of application method, autumn N application after terminal bud set had little effect on current-year growth but increased total plant N concentration. In the autumn, trees that received soil N applications in the summer had more 15 N uptake by leaves, while trees receiving foliar N applications in the summer had more 15 N uptake by root. These results suggest that the differential influence of N application methods during the summer on growth and partitioning of trees affects tree responsiveness to autumn N applications. The use efficiency of autumn-applied N depends on the method of N application in the summer.

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Nitrogen partitioning in apple as affected by timing and tree growth habit

Cited by 35 publications

References 15 publications

¹⁵NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

¹⁵NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

Effect of split applications of oil cake on leaf nutrient contents, tree growth, and fruit quality in non-astringent persimmon trees

Method of Nitrogen Application in Summer Affects Plant Growth and Nitrogen Uptake in Autumn in Young Fuji/M.26 Apple Trees

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Nitrogen partitioning in apple as affected by timing and tree growth habit

Cited by 35 publications

References 15 publications

15NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

15NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

Effect of split applications of oil cake on leaf nutrient contents, tree growth, and fruit quality in non-astringent persimmon trees

Method of Nitrogen Application in Summer Affects Plant Growth and Nitrogen Uptake in Autumn in Young Fuji/M.26 Apple Trees

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Product

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¹⁵NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE

¹⁵NITROGEN STUDY ON ABSORPTION, DISTRIBUTION AND UTILIZATION OF NITROGEN APPLIED IN EARLY SUMMER IN RED FUJI APPLE