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Author : Ian Willoughby,Colin Palmer
Publisher : Unknown
Page : 52 pages
File Size : 43,7 Mb
Release : 1997
Category : Christmas tree growing
ISBN : MINN:31951D01632811C
Author : Khawar Jabran,Bhagirath S. Chauhan
Publisher : Academic Press
Page : 172 pages
File Size : 55,7 Mb
Release : 2018-01-03
Category : Science
ISBN : 9780128098820
Non-Chemical Weed Control is the first book to present an overview of plant crop protection against non-food plants using non-chemical means. Plants growing wild—particularly unwanted plants found in cultivated ground to the exclusion of the desired crop—have been treated with herbicides and chemical treatments in the past. As concern over environmental, food and consumer safety increases, research has turned to alternatives, including the use of cover crops, thermal treatments and biotechnology to reduce and eliminate unwanted plants. This book provides insight into existing and emerging alternative crop protection methods and includes lessons learned from past methodologies. As crop production resources decline while consumer concerns over safety increase, the effective control of weeds is imperative to insure the maximum possible levels of soil, sunlight and nutrients reach the crop plants. Allows reader to identify the most appropriate solution based on their individual use or case Provides researchers, students and growers with current concepts regarding the use of modern, environment-friendly weed control techniques Presents methods of weed management—an important part of integrated weed management in the future Exploits the knowledge gained from past sustainable weed management efforts
Author : Jerry Rafats
Publisher : Unknown
Page : 28 pages
File Size : 44,6 Mb
Release : 1985
Category : Christmas trees
ISBN : MINN:31951002936440U
Author : G. F. Estabrooks,Canadian Forestry Service. Maritimes
Publisher : Fredericton : Canadian Forestry Service, Maritimes
Page : 44 pages
File Size : 41,9 Mb
Release : 1988
Category : Balsam fir
ISBN : PSU:000043337552
High quality balsam fir Christmas trees produced in natural forest sites and in field planations are the result of several years of nurtuing. This report discusses stand dvelopment, site preparation, planting, tending, and cutluring procedures. Trees in natural stands must have adequate space, available nutrients, and protection for growth and development. Thinning (spacing) is necessary throughout the rotation on natural sites with abundant stocking; where stocking is sparse, fill planting supplements natural regeneration. Fertilizers increase foliage production thus enhancing tree quality and shortening rotations. Control of insects, diseases, and competition from other vegetation, which often threaten the viability of a Christmas tree operation, require vigilance and the correct use of pesticides and good cultural practices. Establishment of a field plantation requires site preparation, suitable stock, and proper planting. Seedlings for outplanting may be nursery grown bareroot or container stock, or wilding transplants. Mowing and the judicious use of herbicides throughout the rotation protect the plantation trees from competition. Fertilizer may be of little importance during the first two years after outplanting, but when established, balsam fir usually responds to additions of fertilizer, especially nitrogen. A shearing-pruning program should begin at outplanting to correct defects, such as double tops. When the crown is about 1.3-1.8 m (4-6 ft) in height, overall shearing to promote foliage build-up and tree symmetry should commence. Trees should then be sheared each year till harvested.
Author : National Agricultural Library (U.S.). Reference Division
Publisher : Unknown
Page : 594 pages
File Size : 54,5 Mb
Release : 1982
Category : Agriculture
ISBN : UFL:31262084916997
Author : Anonim
Publisher : Unknown
Page : 266 pages
File Size : 50,8 Mb
Release : 1976
Category : Agriculture
ISBN : WISC:89030499917
Author : Sheldon Cheney
Publisher : Unknown
Page : 526 pages
File Size : 52,5 Mb
Release : 1985
Category : Embryo transplantation
ISBN : UVA:X001922033
Author : National Research Council (U.S.). Committee on Plant and Animal Pests. Subcommittee on Weeds
Publisher : National Academies
Page : 496 pages
File Size : 41,6 Mb
Release : 1968
Category : Weeds
ISBN : NAP:14327
Author : Jerry Rafats
Publisher : Unknown
Page : 34 pages
File Size : 40,6 Mb
Release : 1987
Category : Christmas tree growing
ISBN : MINN:31951002950884C
Author : Deborah T. Hanfman
Publisher : Unknown
Page : 594 pages
File Size : 52,8 Mb
Release : 1987
Category : Shellfish culture
ISBN : UVA:X001915288
Author : Anonim
Publisher : Unknown
Page : 34 pages
File Size : 42,6 Mb
Release : 1984
Category : Christmas trees
ISBN : OSU:32435077545994
Author : Anonim
Publisher : Unknown
Page : 1450 pages
File Size : 41,6 Mb
Release : 1963
Category : Agriculture
ISBN : CUB:U183021554527
Author : Robert D. Wray
Publisher : Rutgers University Press
Page : 201 pages
File Size : 53,8 Mb
Release : 2009
Category : Business & Economics
ISBN : 9780813544175
Wray provides guidance for choosing species suitable for the grower's situation, where and how to get planting stock, and how to care for it. The book presents useful techniques for protecting the growing trees from weeds, animals, fire, insects, and disease, and offers a full description of shearing or shaping trees to improve their form and density.
Author : John Frederick Ahrens,Theodore Ross Flanagan,Maxwell Leland McCormack
Publisher : Unknown
Page : 28 pages
File Size : 51,9 Mb
Release : 1969
Category : Christmas trees
ISBN : MINN:31951D01555509R
Author : Donald B. Hilliker
Publisher : Unknown
Page : 236 pages
File Size : 45,9 Mb
Release : 1993
Category : Crafts & Hobbies
ISBN : WISC:89078228483
