Download or read book Mechanical Methods of Chaparral Modification written by George A. Roby and published by . This book was released on 1976 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture Handbook written by and published by . This book was released on 1949 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.
Download or read book Mechanical Methods of Chaparral Modification written by George A. Roby and published by Ecosystems Research Alliance. This book was released on 1998-04-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forestry Research West written by and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Common Shrubs of Chaparral and Associated Ecosystems of Southern California written by C. Eugene Conrad and published by . This book was released on 1987 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fuelbreaks and Other Fuel Modification for Wildland Fire Control written by Lisle R. Green and published by . This book was released on 1977 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Woody Plants and Woody Plant Management written by Rodney W. Bovey and published by CRC Press. This book was released on 2001-03-29 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: A presentation of strategies for managing woody plants and using research data to select the most appropriate control methods. It analyzes the responses of over 370 North American woody plants to commercially available herbicides. The authors provide methods to manage woody plants that interfere with recreation, watershed yield, animal and plant diversity, resource conservation, wildlife and livestock needs, and wood production on grazing, forest, and related land.
Download or read book A Financial Return Program for Forestry Investments written by George A. Roby and published by . This book was released on 1975 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Los Padres National Forest N F Land and Resource s Management Plan LRMP written by and published by . This book was released on 1988 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Available Publications of the United States Department of Agriculture written by United States. Department of Agriculture and published by . This book was released on 1979 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Symposium on the Environmental Consequences of Fire and Fuel Management in Mediterranean Ecosystems August 1 5 1977 Palo Alto California written by and published by . This book was released on 1977 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by and published by . This book was released on with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book GTR WO written by United States. Forest Service and published by . This book was released on 1975 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Agricultural Handbooks Numbers 1 690 written by Ellen Kay Miller and published by . This book was released on 1992 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications Quarterly List written by and published by . This book was released on 1967 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PSW written by and published by . This book was released on 1989 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Competing Vegetation in Ponderosa Pine Plantations written by Philip M. McDonald and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
