Results 161 to 170 of about 140,480 (206)
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Foliar analysis using near infrared reflectance spectroscopy
Canadian Journal of Forest Research, 1988Near infrared reflectance spectroscopy was evaluated as a method for measuring nitrogen and lignin content in foliage of native forest and prairie species. Near infrared reflectance spectra (1590 to 2357 nm) were obtained for 163 samples of dried green leaves and leaf litter from 18 deciduous and 2 coniferous tree species.
Carol A. Wessman +3 more
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Using Foliar Analysis to Classify Nitrogen‐Deficient Sites
Soil Science Society of America Journal, 1984Abstract Discriminant analysis was used to evaluate the efficacy of using foliage N concentration (FN), an adjustment of the foliage N concentration based on stand age (FA), and a nitrogen/phosphorus ratio (N/P) to classify N‐deficient sites. N/P was the superior index of N deficiency.
N. B. Comerford, R. F. Fisher
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Experimental Agriculture, 1970
SUMMARYThe literature for the past seventy years describes a variety of methods of sampling tea leaves, in some of which analytical data from samples have been suggested as capable of widespread use as a measure of the nutritional status of tea plantations.
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SUMMARYThe literature for the past seventy years describes a variety of methods of sampling tea leaves, in some of which analytical data from samples have been suggested as capable of widespread use as a measure of the nutritional status of tea plantations.
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Foliar microstructure and histochemical analysis of the lavender tree (Heteropyxis natalensis Harv.)
Micron, 2022Heteropyxis natalensis Harv. is a native South African tree used in traditional medicine among Venda and Zulu communities. In this study, micromorphological investigations using light and scanning electron microscopy identified long, tapered non-glandular trichomes on the abaxial and adaxial surfaces of the leaves.
Saiyuri Dayinee, Meer +4 more
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Fungal foliar plant pathogen epidemics: modelling and qualitative analysis
Plant Pathology, 1994A new approach for modelling epidemics caused by fungal foliar plant pathogens is presented. The model is described by a system of differential equations, and is simple enough to allow a qualitative analytical study of the main epidemiological factors that determine the rate of disease progress during a single growing period. The model was analysed and
E. KOSMAN, Y. LEVY
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Canadian Journal of Forest Research, 1973
Foliar nutrient concentration differences between provenances, and the relationship between foliar nutrient levels and provenance growth was examined in Douglas fir (Pseudotsugamenziesii (Mirb.) Franco) from the coastal region of British Columbia.In the first experiment differences in foliar nutrient concentrations among four provenances of 3-year old
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Foliar nutrient concentration differences between provenances, and the relationship between foliar nutrient levels and provenance growth was examined in Douglas fir (Pseudotsugamenziesii (Mirb.) Franco) from the coastal region of British Columbia.In the first experiment differences in foliar nutrient concentrations among four provenances of 3-year old
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Foliar Analysis as a Diagnostic Technique in Tropical Horticulture
1984A brief history of the development of foliar analysis as a diagnostic technique for horticultural crops is reviewed and discussed. Terminology, together with a basic discussion of the components necessary to operate a successful foliar analysis program for growers, is presented.
Cahoon, G.A., Cahoon, G.A.
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Lime requirements of Boston ferns: II. Foliar and medium analysis
Communications in Soil Science and Plant Analysis, 1983Abstract Growth response and nutrient levels in the foliage and growth medium were compared using Nephrolepsis exaltata (L.) Schott ‘Com‐pacta’ ferns grown in a peat‐perlite medium with 4 rates of dolo‐mitic limestone (0.0, 1.2, 2.4, and 6.0 kg/m3) and 2 rates of gypsum (0.0 and 1.2 kg/m3).
Charles H. Gilliam +3 more
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In Situ Analysis of Nickel Uptake from Foliar Application in Pecan Using Instrumental µXRF Analysis
Journal of Soil Science and Plant Nutrition, 2021Nickel is an essential element as the cofactor in the enzyme urease, and pecan (Carya illinoinensis (Wangenh.) K. Koch) is known to suffer from commercially important nickel deficiency manifested in “mouse-ear” disease. Foliar application of nickel has been shown to increase foliar nickel concentrations and foliar urease activity and to cure the nickel
Jessica Bezerra de Oliveira +2 more
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Seasonal Weather Regimes Influence Interpretation of Pinus resinosa Foliar Analysis
Soil Science Society of America Journal, 1979Abstract A technique is described for quantifying the influence of seasonal precipitation and atmospheric temperature patterns (using degree‐day summations) on annual foliar analysis data. The results of this are used to adjust for the influence of climatic variation on foliar data so as to obtain a better ...
Donald H. Bickelhaupt +3 more
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