Weed Control in Radiata Pine Plantations
Author: F. H. McKinnell
Publisher:
Published: 1973
Total Pages: 23
ISBN-13: 9780724455553
DOWNLOAD EBOOK →Author: F. H. McKinnell
Publisher:
Published: 1973
Total Pages: 23
ISBN-13: 9780724455553
DOWNLOAD EBOOK →Author: Donald J. Mead
Publisher: Food & Agriculture Organization of the UN (FAO)
Published: 2013
Total Pages: 0
ISBN-13: 9789251076347
DOWNLOAD EBOOK →"Pinus radiata (radiata pine) is a versatile, fast-growing, medium-density softwood, suitable for a wide range of end-uses. Its silviculture is highly developed, and is built on a rm foundation of over a century of research, observation and practice. Radiata pine is often considered a model for growers of other plantation species. This book explores current knowledge of, and experience with radiata pine forest plantation management and examines its long-term sustainability. Radiata pine management needs to integrate the biological aspects of tree-growing, with socio-economics, management objectives, practical considerations and other constraints and opportunities. Although stands of radiata pine may appear to be simple, they are actually quite complex ecosystems because they contain large, long-lived trees that change dramatically over time and interact in changing ways with the environment and with other organisms. The focus of this book is on the principles and practices of growing radiata pine sustainably. It also looks ahead to emerging challenges facing radiata pine plantation management, such as the effects of climate change, new diseases and other threats, and meeting changing product needs and societal demands."--Page 4 of cover.
Author: N. B. Lewis
Publisher:
Published: 1993
Total Pages: 440
ISBN-13:
DOWNLOAD EBOOK →Primarily for foresters, this text reviews current knowledge of the silviculture of radiata pine, its management at stand and forest levels, and its prospects in future domestic and international markets. Presents information about the biology of the species, including growth habits, wood characteristics and pests and diseases. Includes tables and graphs, references and an index. The authors are foresters from countries in which radiata pine is grown extensively, including Australia, New Zealand, South Africa and Chile.
Author: Philip M. McDonald
Publisher:
Published: 1989
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOK →Planted ponderosa pine (Pinus ponderosa Dougl. ex Laws. var. ponderosa) seedlings in young plantations in California are at a disadvantage compared with competing shrubs, forbs, and grasses. In many instances, roots of competing plants begin expanding and exploiting the soil earlier and in greater numbers, thereby capturing the majority of available resources and lowering pine survival and growth. Competition thresholds or "how much is too much?" are: for treatments where a cleared radius is prescribed, no weeds are acceptable within the space needed for maximum growth of pine seedlings during the establishment period; for treatments involving the entire area, crown cover values of 10 to 30 percent seem to be the level beyond which shrub competition significantly affects pine growth. Methods for preparing the site, which include mechanical and chemical methods, use of fire, and combinations of treatments, show the interaction of site and ensuing vegetation. Techniques for controlling competing vegetation from seed include preventing such plants from getting started by use of preemergent herbicides or mats (collars). To prevent sprouting, hardwood trees and large shrubs can be pushed over, thereby getting the root crown out of the ground, or if still in the soil, grinding it out with a machine. Once present, the effect of weeds from seed can be minimized by grubbing or spraying when young, by grazing plants with cattle or sheep, or by introducing plants of low competitive ability. Once sprouting weeds are present, their effect can be minimized by spraying with chemicals, or if palatable, by grazing with cattle or sheep. Costs range from as low as $10 per acre ($25/ha) for aerially applying herbicides to $711 per acre ($1757/ha) for grinding out tanoak stumps.