Foliar Analysis and DRIS as a Guide to Fertilizer Amendments in Poplar Plantations

Leech, R. H.; Kim, Y. T.

doi:10.5558/tfc57017-1

Cited by 30 publications

(12 citation statements)

References 3 publications

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“…Preliminary studies have identified nutritional status as the major parameter determining the productivity of various Populus species, which is consistent with findings in other areas van den Driessche 2002, 2005;Leech and Kim 1981;McLennan 1996;van den Driessche 1999;van den Driessche et al 2003). However, despite the important economic implications, the main factors involved in the poor growth of these plantations have not yet been established.…”

Section: Introductionsupporting

confidence: 63%

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Relating visual crown conditions to nutritional status and site quality in monoclonal poplar plantations (Populus × euramericana)

Martín‐García

Merino

2011

Eur J Forest Res

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The area covered by plantations of hybrid poplar in Europe is increasing greatly because of the high profitability of these trees. However, the productivity varies widely depending on nutritional status, and it is therefore essential to identify the limiting nutrients. The aims of this study were (a) to identify the main nutrients limiting the growth and vitality of monoclonal poplar (Populus 9 euramericana) plantations and (b) to develop a means of early detection of nutrition-related problems in growth, based on visual crown conditions (crown transparency, VCT, and visual crown discoloration, VCD). The study was carried out in one of the most suitable areas for this species in Southern Europe. Thirty-two Populus 9 euramericana (clone I-214) stands displaying different levels of decline were selected for study, and tree growth, nutritional status (soil properties and foliar nutrient concentrations) and crown conditions were assessed. The stands, which were growing in soils with high contents of coarse fragments, displayed low growth rates, poor crown conditions and deficiencies in Fe, B, N, P, K, and to a lesser extent, Zn and Cu. The deficiencies increased with the age of the stand, presumably because of the higher nutrient demand in older trees. Visual crown conditions were related to growth rates and nutritional status. Predictive models were developed to relate crown conditions to the nutritional status identified by analysis of soil properties and foliar concentrations of nutrients.

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Section: Introductionsupporting

confidence: 63%

“…Foliar nutrient balance was initially analyzed by DRIS indices calculated for N, P, K, Ca and Mg from norms developed by Leech and Kim (1981). However, preliminary results showed that micronutrients were the most influential variables, and the resulting DRIS indices were not encouraging.…”

Section: Sampling and Analysis Of Soils And Leavesmentioning

confidence: 99%

Relating visual crown conditions to nutritional status and site quality in monoclonal poplar plantations (Populus × euramericana)

Martín‐García

Merino

2011

Eur J Forest Res

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“…This indicates that most of these traits are under strong environmental control in hybrid poplar clones of different parentages. Variation in foliage and leaf litter nutrient concentrations along site fertility gradients often reflect changes in nutritional or physiological status [65,66], potential nutrient limitations [67], but also trends in nutrient cycling strategies [11,39]. Our results showed that resorption proficiency (i.e.…”

Section: Discussionmentioning

confidence: 54%

Linking Biomass Productivity to Genotype-Specific Nutrient Cycling Strategies in Mature Hybrid Poplars Planted Along an Environmental Gradient

2017

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This study used three hybrid poplar (Populus × spp.) clones (13 years old) with different parentages planted in three abandoned farmland sites along a regional gradient of elevation and soil fertility in southern Québec (Canada). We evaluated the effects of plantation site and clone on nutrient concentrations in green foliage and leaf litter, on leaf litter mass remaining, on soil properties and on biomass yield. Green foliage and leaf litter nutrient concentrations, and litter decomposition, are under strong genetic and environmental control in hybrid poplars. Clone-specific correlation patterns between green foliage and leaf litter nutrient concentrations were observed, as well as between soil nutrient availability and foliage or leaf litter nutrient concentrations. Despite the wide variations in soil nutrient availability and elevation between sites, only the clone effect was significant on biomass yield. An increase in N and P resorption proficiency with declining soil NO 3 and P availability, observed in all clones, could explain stable yields of each clone across sites. The most productive clones (DN × M-915508 and M × B-915311) were more proficient at resorbing N, P and K, while the least productive clone (D × N-131) had the highest N, P and K concentrations in green foliage and in litter. The ability of clone M × B-915311 to maintain high litter Ca and Mg concentrations on sites with soil characterised by lower pH, lower base saturation and lower nutrient availability (NO 3 , P, Ca and Mg) may also be linked to its high and stable productivity. Differences in litter quality between clones did not yield significant differences in soil properties or in litter mass remaining after 2 years. However, short-term decay trajectories varied between clones. As litter mass remaining was strongly correlated to elevation, the plantation site significantly affected leaf litter mass remaining, which ranged from 4.5 to 35.5% between sites after 2 years.

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“…8), reflecting the effect of NH 4 NO 3 in accentuating the adverse effect of pH (Gupta and MacLoed, 1981). Most studies place critical P concentrations of different hybrid poplar varieties above or around 0.25% (Leech and Kim, 1981;Hansen, 1994;McLennan, 1996). Leaf P concentrations of unfertilized trees in this study were already below 0.20%, and the high N level reduced P concentrations by about 0.195-0.185% (Fig.…”

Section: Discussionmentioning

confidence: 96%

NPK fertilization at planting of three hybrid poplar clones in the boreal region of Alberta

DesRochers

Driessche

Thomas

2006

Forest Ecology and Management

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Foliar Analysis and DRIS as a Guide to Fertilizer Amendments in Poplar Plantations

Cited by 30 publications

References 3 publications

Relating visual crown conditions to nutritional status and site quality in monoclonal poplar plantations (Populus × euramericana)

Relating visual crown conditions to nutritional status and site quality in monoclonal poplar plantations (Populus × euramericana)

Linking Biomass Productivity to Genotype-Specific Nutrient Cycling Strategies in Mature Hybrid Poplars Planted Along an Environmental Gradient

NPK fertilization at planting of three hybrid poplar clones in the boreal region of Alberta

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