Nutrient retranslocation in Larix principis-rupprechtii Mayr relative to fertilization and irrigation

New Forests ◽  
2020 ◽  
Author(s):  
Fangfang Wan ◽  
Amy L. Ross-Davis ◽  
Anthony S. Davis ◽  
Xiehai Song ◽  
Xiaochao Chang ◽  
...  
Keyword(s):  
Nutrient Retranslocation

scholarly journals Nutrient cycling in a RRIM 600 clone rubber plantation

2003 ◽  
Vol 60 (2) ◽  
pp. 353-357 ◽  
Author(s):  
Marcos Roberto Murbach ◽  
Antonio Enedi Boaretto ◽  
Takashi Muraoka ◽  
Euclides Caxambu Alexandrino de Souza
Keyword(s):  
Nutrient Cycling ◽  
Rubber Tree ◽  
Nutrient Content ◽  
Nutrient Loss ◽  
Tree Plantations ◽  
Rubber Plantation ◽  
Rubber Latex ◽  
Nutrient Retranslocation ◽  
One Year ◽  
K Fertilization

Few reports have been presented on nutrient cycling in rubber tree plantations (Hevea brasiliensis Muell. Arg.). This experiment was carried out to evaluate: the effect of K rates on the amount of nutrients transfered to the soil in a 13-year old Hevea brasilensis RRIM 600 clone plantation, nutrient retranslocation from the leaves before falling to the soil, and nutrient loss by dry rubber export. The experiment started in 1998 and potassium was applied at the rates of 0, 40, 80 and 160 kg ha-1 of K2O under the crowns of 40 rubber trees of each plot. Literfall collectors, five per plot, were randomly distributed within the plots under the trees. The accumulated literfall was collected monthly during one year. The coagulated rubber latex from each plot was weighed, and samples were analyzed for nutrient content. Increasing K fertilization rates also increased the K content in leaf literfall. Calcium and N were the most recycled leaf nutrients to the soil via litterfall. Potassium, followed by P were the nutrients with the highest retranslocation rates. Potassium was the most exported nutrient by the harvested rubber, and this amount was higher than that transfered to the soil by the leaf literfall.

scholarly journals Foliar nutrient retranslocation in Eucalyptus globulus

2000 ◽  
Vol 20 (16) ◽  
pp. 1105-1112 ◽  
Author(s):  
E. Saur ◽  
E. K. S. Nambiar ◽  
D. N. Fife
Keyword(s):  
Eucalyptus Globulus ◽  
Foliar Nutrient ◽  
Nutrient Retranslocation

scholarly journals Growth, physiology, and nutrient retranslocation in nitrogen-15 fertilized Quercus rubra seedlings

2008 ◽  
Vol 65 (1) ◽  
pp. 101-101 ◽  
Author(s):  
K. Francis Salifu ◽  
Kent G. Apostol ◽  
Douglass F. Jacobs ◽  
M. Anisul Islam
Keyword(s):  
Quercus Rubra ◽  
Growth Physiology ◽  
Nutrient Retranslocation

Site-specific growth and nutrition of planted Piceamariana in the Ontario Clay Belt. III. Biomass and nutrient allocation

1990 ◽  
Vol 20 (8) ◽  
pp. 1165-1171 ◽  
Author(s):  
Alison D. Munson ◽  
V. R. Timmer
Keyword(s):  
Black Spruce ◽  
N Uptake ◽  
Nutrient Use Efficiency ◽  
Nutrient Content ◽  
Nutrient Allocation ◽  
Individual Element ◽  
N Nutrition ◽  
Multivariate Procedures ◽  
Nutrient Retranslocation ◽  
The Individual

First and second-season morphological responses of outplanted Piceamariana (Mill.) B.S.P. (black spruce) seedlings to site conditions of three cutover boreal ecosystems were analysed in terms of biomass and nutrient allocation to structural components (current shoots, previous year's shoots, stem, and roots). Improved N nutrition on an upland Feathermoss site had the greatest positive effect on biomass and nutrient allocation to current shoots, while allocation to other components was reduced. Seedlings on lowland Alnus – Herb poor and Ledum sites responded to site nutrient stress by allocating more biomass to the stem and roots. Multivariate procedures indicated that the overall pattern of biomass and nutrient allocation was significantly affected by site, and also differed depending on the individual element considered (N, P, K, Ca, Mg). Changes in nutrient-use efficiency with site were also investigated. With decreased seedling N uptake on the two lowland sites, biomass production per unit N increased, but specific absorption rate of roots decreased. Under N limitation, evidence for nutrient retranslocation was noted by decreases in nutrient content in the same component over 2 years and by lower concentrations in older shoots than in current growth. The alternative allocation of biomass and nutrients to seedling components with changes in site nutrition has implications for tree development on specific sites, and also for management of site nutrient regime to improve early seedling performance.

Biomass partitioning and nitrogen retranslocation in black spruce seedlings on competitive mixedwood sites: a bioassay study

1998 ◽  
Vol 28 (2) ◽  
pp. 206-215 ◽  
Author(s):  
V Malik ◽  
V R Timmer
Keyword(s):  
Nutrient Dynamics ◽  
Nutrient Loading ◽  
Black Spruce ◽  
N Uptake ◽  
Natural Vegetation ◽  
Nursery Culture ◽  
Nitrogen Retranslocation ◽  
Nutrient Retranslocation ◽  
Herbicide Effects ◽  
Nutrient Reserves

Black spruce (Picea mariana (Mill.) BSP) seedlings were exponentially nutrient loaded by applying 3 or 6 times more fertilizer than recommended for conventional seedling production in the nursery. Loaded seedlings were similar in height and biomass to nonloaded seedlings after nursery culture, but their tissue N, P, and K content was almost twice as much as that of nonloaded seedlings. The seedlings were transplanted on intact potted substrates (bioassays) retrieved with natural vegetation from two boreal mixedwood sites and grown for one season in a greenhouse to study early- and late-season growth and nutrient dynamics, and nutrient loading and herbicide effects on N retranslocation processes. After transplanting, height and biomass growth of loaded seedlings were, respectively, 9-14% and 24-49% more than nonloaded seedlings in herbicide-treated plots, and 14-32% and 42-85% more in untreated plots, resulting in 32-39% biomass reduction in natural vegetation. The effect of nutrient loading on growth was attributed to earlier and greater biomass and N partitioning to current needles and roots that promoted N uptake (up to 20.9 ± 1.7 mg) compared with nonloaded seedlings (up to 11.8 ± 1.2 mg). Although both loading and herbicide treatments stimulated seedling growth and N uptake, N retranslocation from older to actively growing tissues was promoted by loading but reduced by herbicide treatment. The results demonstrate the high dependence of seedlings on internal nutrient reserves when planted in competitive environments, and that nutrient retranslocation is mainly driven by current growth, nutrient uptake, and internal nutrient reserves.

Nutrient retranslocation in temperate conifers

1991 ◽  
Vol 9 (1-2) ◽  
pp. 185-207 ◽  
Author(s):  
E. K. S. Nambiar ◽  
D. N. Fife
Keyword(s):  
Nutrient Retranslocation
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