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Influence Of Fertilizer Nitrogen Source On Deer Browsing And Chemical Composition Of Nursery Grown Douglas Fir Classic Reprint
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Book Synopsis Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-Grown Douglas-Fir (Classic Reprint) by : M. A. Radwan
Download or read book Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-Grown Douglas-Fir (Classic Reprint) written by M. A. Radwan and published by Forgotten Books. This book was released on 2018-09-08 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-Grown Douglas-Fir Effects of nursery fertilization of year - old Douglas - fir seed lings with ammonium sulfate, calcium nitrate, and urea on browsing by black - tailed deer, and chemical properties were compared. Fertilizers were applied at 56 kg N/ha in May and again in Sep tember, and seedlings were harvested in November. Seedlings from the different treatments were equally browsed by penned deer. Chemical analyses of shoots indicated significant differences due to N source only in manganese and sulfur contents. However, the larger size of urea and nitrate-fertilized plants indicated that their shoots contained higher quantities of the majority of the chemicals determined. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-grown Douglas-fir by : M. A. Radwan
Download or read book Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-grown Douglas-fir written by M. A. Radwan and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-grown Douglas-fir by :
Download or read book Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Composition of Nursery-grown Douglas-fir written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Compsition of Nursery-grown Douglas-fir by : M. A. Radwan
Download or read book Influence of Fertilizer Nitrogen Source on Deer Browsing and Chemical Compsition of Nursery-grown Douglas-fir written by M. A. Radwan and published by . This book was released on 1974 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-Fir (Classic Reprint) by : Glenn LeRoy Crouch
Download or read book Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-Fir (Classic Reprint) written by Glenn LeRoy Crouch and published by Forgotten Books. This book was released on 2017-12-12 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-Fir Among possible control methods not previously evaluated is selective application of nutrients to the trees. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-fir by : Glenn LeRoy Crouch
Download or read book Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-fir written by Glenn LeRoy Crouch and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen and phosphorus were applied to young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) trees to determine their effects on deer browsing and tree growth. Nitrogen (N) proauced measurable responses in browsing of terminal shoots and growth of trees the first year, but effects were mostly negligible 2 years after treatments. No responses to phosphorus (P) were detected. Nitrogen and N+P treatments increased the concentration of N in tree foliage the first year, but amount of moisture, ash, calcium, and P were not affected after 2 years.
Book Synopsis Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-fir by : Glenn LeRoy Crouch
Download or read book Effects of Nitrogen and Phosphorus Fertilizers on Deer Browsing and Growth of Young Douglas-fir written by Glenn LeRoy Crouch and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Douglas-fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers by : M. A. Radwan
Download or read book Response of Douglas-fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers written by M. A. Radwan and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Soil and Foliar Applications of Nitrogen Fertilizers on a 20-year-old Douglas-fir Stand by : Richard E. Miller
Download or read book Effects of Soil and Foliar Applications of Nitrogen Fertilizers on a 20-year-old Douglas-fir Stand written by Richard E. Miller and published by . This book was released on 1979 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seventy-five-year-old Douglas-fir on High-quality Site Respond to Nitrogen Fertilizer by : Richard E. Miller
Download or read book Seventy-five-year-old Douglas-fir on High-quality Site Respond to Nitrogen Fertilizer written by Richard E. Miller and published by . This book was released on 1974 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Douglas-Fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers (Classic Reprint) by : M. A. Radwan
Download or read book Response of Douglas-Fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers (Classic Reprint) written by M. A. Radwan and published by Forgotten Books. This book was released on 2018-01-21 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Response of Douglas-Fir Seedlings to Nitrogen, Sulfur, and Phosphorus Fertilizers This study, therefore, was designed to study effects of N, S, and P additions on growth and nutrient content of Douglas - fir seedlings grown in two forest soils in a lathhouse. We are aware of the limitations of pot tests in providing prescriptions that can be directly applied to field situations. However, the very limited information about Douglas - fir nutrition now available and the high cost of establishing field tests strongly justify preliminary experimentation with seedlings. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Seven-Year Response of 35-Year-Old Douglas-Fir to Nitrogen Fertilizer (Classic Reprint) by : Richard E. Miller
Download or read book Seven-Year Response of 35-Year-Old Douglas-Fir to Nitrogen Fertilizer (Classic Reprint) written by Richard E. Miller and published by Forgotten Books. This book was released on 2018-09-11 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Seven-Year Response of 35-Year-Old Douglas-Fir to Nitrogen Fertilizer In both fertilized and unfertilized stands, part of the increase in average d.b.b. Was due to mortality. In addition to providing more growing space to surviving trees, mortality caused an immediate increase in average d.b. H. That was not a result of growth, but rather the result of losses of smaller-than-average trees. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Effect of Deer Browsing on Height Growth of Douglas-fir Trees by : Harry D. Hartwell
Download or read book Effect of Deer Browsing on Height Growth of Douglas-fir Trees written by Harry D. Hartwell and published by . This book was released on 1973 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth and Nutrient Allocation of Douglas-fir Seedlings by : Kim Everett
Download or read book Growth and Nutrient Allocation of Douglas-fir Seedlings written by Kim Everett and published by . This book was released on 2005* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regeneration of Douglas-fir following harvesting has proven difficult on many sites in British Columbia. As a result, alternative nursery practices are being explored to improve seedling growth. Using two experiments I aimed to identify an improved nutritional program for Douglas-fir seedlings. The objective of the first experiment was to identify the optimum nitrogen (N) source ratio for Douglas-fir between two inorganic sources of N, ammonium (NH4+) and nitrate (NO3- ). Seedlings were grown in controlled environments in aeroponic culture with solutions containing 0:100, 20:80, 40:60, 60:40, 80:20 or 100:0 NH4+:NO3- ratios. Growth and nutrient allocation was observed for 45 days. Different NH4+ and NO3-ratios resulted in significant differences in growth and nutrient allocation. Seedlings grown in solutions containing abundant and relatively equal portions of NH4+ and NO3- were characterized by the greatest relative growth rates, greatest biomass and stable internal nitrogen concentrations. Seedlings grown in solutions containing high NH4+ (80:20 and 100:0 NHS+:NO3- ) concentrations were characterized by lower relative growth rates, less biomass, lower internal nutrient concentrations and lower rates of photosynthesis and root respiration compared to seedlings with less NH4+ (20:80, 40:60 and 60:40 NH4+:NO3- ). Seedlings appeared to take up a greater proportion of NH4+ than NO3- from solution. The objective of the second experiment was to examine the implications of two nursery fertilization regimes for growth and nutrient dynamics. Seedlings were grown in a nursery with nutrients added at a constant rate (conventional fertilization) or at an exponentially increasing rate of 2% day-1 (exponential nutrient loading). At the time of planting, half of the conventionally fertilized seedlings were planted with slow release fertilizer packets. Growth and nutrient allocation was observed for two years following planting. In the field experiment, although exponential nutrient loading applied 25% more N in the nursery compared to the conventional regime, no benefits in growth or nutrient allocation were found. Two years after planting, there were no significant differences in height, root collar diameter or total dry mass between seedlings grown under the different nursery fertilizer regimes. In contrast, seedlings planted with additional fertilizer consistently outperformed seedlings grown with exponential nutrient loading, with greater height, root collar diameter and dry mass. Two growing seasons after planting there were no significant differences among treatments in whole-plant N concentrations.
Book Synopsis Growth and Nutrient Allocation of Douglas-fir Seedlings by :
Download or read book Growth and Nutrient Allocation of Douglas-fir Seedlings written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Regeneration of Douglas-fir following harvesting has proven difficult on many sites in British Columbia. As a result, alternative nursery practices are being explored to improve seedling growth. Using two experiments I aimed to identify an improved nutritional program for Douglas-fir seedlings. The objective of the first experiment was to identify the optimum nitrogen (N) source ratio for Douglas-fir between two inorganic sources of N, ammonium (NH4+) and nitrate (NO3- ). Seedlings were grown in controlled environments in aeroponic culture with solutions containing 0:100, 20:80, 40:60, 60:40, 80:20 or 100:0 NH4+:NO3- ratios. Growth and nutrient allocation was observed for 45 days. Different NH4+ and NO3-ratios resulted in significant differences in growth and nutrient allocation. Seedlings grown in solutions containing abundant and relatively equal portions of NH4+ and NO3- were characterized by the greatest relative growth rates, greatest biomass and stable internal nitrogen concentrations. Seedlings grown in solutions containing high NH4+ (80:20 and 100:0 NHS+:NO3- ) concentrations were characterized by lower relative growth rates, less biomass, lower internal nutrient concentrations and lower rates of photosynthesis and root respiration compared to seedlings with less NH4+ (20:80, 40:60 and 60:40 NH4+:NO3- ). Seedlings appeared to take up a greater proportion of NH4+ than NO3- from solution. The objective of the second experiment was to examine the implications of two nursery fertilization regimes for growth and nutrient dynamics. Seedlings were grown in a nursery with nutrients added at a constant rate (conventional fertilization) or at an exponentially increasing rate of 2% day-1 (exponential nutrient loading). At the time of planting, half of the conventionally fertilized seedlings were planted with slow release fertilizer packets. Growth and nutrient allocation was observed for two years following planting. In the field experiment, although exponential nutrient.
Book Synopsis Interaction of Seed Source, Competition and Fertility on Planted Douglas-fir (Pseudotstuga Menziesii [Mirb.] Franco) by : Brian Edward Roth
Download or read book Interaction of Seed Source, Competition and Fertility on Planted Douglas-fir (Pseudotstuga Menziesii [Mirb.] Franco) written by Brian Edward Roth and published by . This book was released on 1994 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this study was to evaluate the interaction between herbaceous competition, fertility, and seed source on Douglas-fir survival and growth. A secondary objective was to evaluate the effect of these various factors on the production of lammas shoots and the selectivity of deer browse. Finally, the role of lammas growth in the recovery from deer browsing was examined. Lammas growth, commonly referred to as second flushing, is the precocious flush of growth from the newly formed terminal bud in mid-summer. Weed control was the dominant factor influencing seedling survival and growth, accounting for 49 percent of the explained variation in seedling volume after two years. Weed control significantly conserved soil moisture and resulted in an increased number of seedlings exhibiting a second flush of growth. Fertilization through the addition of nitrogen had no effect when used in conjunction with weed control and had a negative effect when used without the benefit of weed control, Seedlings from the seed orchard source were significantly larger in diameter than the wild type source after two growing seasons, but were of similar height. Of the seedlings which were browsed twice by deer those with the benefit of weed control had over twice the stem volume of those without the benefit of weed control. Lammas growth contributed to the stem volume response to weed control by additional height growth, thus allowing the seedlings to recover from and escape the effects of deer browse.
Book Synopsis Effects of N, P, and K Fertilizers on Nursery-grown Trees and Shrubs Common to Douglas-fir Forests by : Jack K. Winjum
Download or read book Effects of N, P, and K Fertilizers on Nursery-grown Trees and Shrubs Common to Douglas-fir Forests written by Jack K. Winjum and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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