Planting Site, Shade, & Local Seed Source PDF Download
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Author: Raymond E. Graber
Publisher:
ISBN:
Category : White pine
Languages : en
Pages : 16
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Book Description
S2The purpose of our study was to examine some of the factors that influence seedling emergence and seedling survival of direct-seeded white pine (Pinus strobus L.). Our major concern was the response of white pine to a particular set of growing conditions on the seedling emergence pattern, on seedling survival, and on the causes of seedling mortality. S3.
Author: Raymond E. Graber
Publisher:
ISBN:
Category : White pine
Languages : en
Pages : 16
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Book Description
S2The purpose of our study was to examine some of the factors that influence seedling emergence and seedling survival of direct-seeded white pine (Pinus strobus L.). Our major concern was the response of white pine to a particular set of growing conditions on the seedling emergence pattern, on seedling survival, and on the causes of seedling mortality. S3.
Author: Northeastern Forest Experiment Station (Radnor, Pa.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 412
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Book Description
Author: Elwood L. Shafer
Publisher:
ISBN:
Category : Recreational surveys
Languages : en
Pages : 420
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Book Description
S2Because of the great and growing interest in outdoor recreation, many studies are being made by private and public agencies that need information for planning use of land and facilities for recreational purposes. In these studies much attention is being given to the people who use recreational facilitieswho they are; where they come from; what they like; what they want; how much they are willing to spend. Many types of surveys are being used in studying these people. The main question in planning a survey of this sort is: What survey technique can be used that will provide the most reliable and valid results at the least cost? To get an answer that we could use in our recreation research program, we made a study of four different survey techniquesa personal interview, a handout questionnaire, an immediate mail questionnaire, and a delayed mail questionnaire. Results show that the delayed mail survey, conducted 3 months after the camping experience, gets the best results at the least cost. Our study is described here for the benefit of other research workers in outdoor recreation.S3.
Author:
Publisher:
ISBN:
Category : Forest reserves
Languages : en
Pages : 736
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 510
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 260
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1464
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
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Author: Raymond E. Graber
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 18
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Book Description
"Furrow-seeding techniques seem to offer the best means of providing these desired conditions at reasonable cost (Croker 1967). A tractor-drawn furrow-seeder prepares a mineral seedbed, sows and covers the seed, and can be maneuvered so as to leave some existing vegetation between furrows for shade. Since no commercial equipment was suitable for use under typical northeastern brushland conditions, we adapted existing equipment to suit our needs. From a fireline plow and a beet planter, we devised a furrow-seeder. We tested it over a wide range of site conditions to evaluate its operational efficiency and to determine the stocking of red and white pine seedlings that were established through its use (fig. 1).S3.
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1716
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
