Download or read book Ponderosa pine seeding trials in west side Sierra Nevada clearcuts written by Robert L. Neal and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: In direct-seeding trials on the Challenge Experimental Forest, Yuba County, California, 27 combinations of seeding rates, aspect, and site treatment were tested. The best results were obtained on northerly aspects on unburned mechanically disturbed seedbeds with a high proportion of exposed mineral soil when seed application rates were high. Sowing at least 1 pound of seed per acre (1.12 kg per ha) consistently resulted in 400 or more seedlings per acre (988 seedlings per ha). Baiting for rodent control and attempted seed covering by "dragging" did not improve results. If regeneration requirements will be met by 400 seedlings per acre, these procedures for operational testing are suggested: (1) prepare 100 percent of the site by piling and burning slash and residual vegetation; (2) use seed that has had the standard endrin-arasanaluminum- dust pest repellent treatment, or equivalent; and (3) apply at least 1.5 pounds of seed (10,000 to 12,000 viable seed) per acre (1.7 kg, or 24,710 to 29,650 seed, per ha)

Download or read book Ponderosa Pine Seeding Trials in West side Sierra Nevada Clearcuts written by Robert L. Neal and published by . This book was released on 1975 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ponderosa Pine Seeding Trials in West side Sierra Nevada Clearcuts Some Early Results written by Robert L. Neal (Jr.) and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ponderosa Pine Seeding Trails in West Side Sierra Nevada Clearcuts written by Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) and published by . This book was released on 1975 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S D A Forest Service Research Note PSW written by and published by . This book was released on 1971 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Regeneration and Seedling Growth from Five Major Cutting Methods in North central California written by Philip M. McDonald and published by . This book was released on 1976 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S D A Forest Service Research Note PSW written by Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) and published by . This book was released on 1975 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ponderosa Pine Bibliography III 1971 Through 1975 written by and published by . This book was released on 1977 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Paper PSW written by and published by . This book was released on with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service General Technical Report PSW written by Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) and published by . This book was released on 1976 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiation Effects on Moisture in Ponderosa Pine Litter written by Arthur W. Magill and published by . This book was released on 1975 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two-stage shelterwood cutting, at 12 trees per acre, with site preparation, enhanced seedfall, regeneration, and residual growth at the Challenge Experimental Forest, north central California. Shelterwood trees produced 9.2 times more seed than trees in the control. Ponderosa pine regeneration numbered about 3700 seedlings per acre (9139 per ha) and tolerant conifers 600 seedlings (1482 per ha) after 5 years. Hardwood seedlings and sprouts also were abundant. Basal area growth rates for all species in nearly all diameter classes were greater in the shelterwood than in the control. The shelterwood cutting method is recommended for use in young-growth, mixed-conifer stands.

Download or read book Final Environmental Impact Statement for the Intermountain Region Guide written by and published by . This book was released on 1984 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tables of Geometry for Low standard Roads for Watershed Management Considerations Slope Staking and End Areas written by Walter F. Megahan and published by . This book was released on 1976 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service General Technical Report INT written by and published by . This book was released on 1976 with total page 490 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 1978 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resource values in analyzing fire management programs for economic efficiency written by Irene A. Althaus and published by . This book was released on 1982 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silvicultural Systems for the Major Forest Types of the United States written by and published by . This book was released on 1983 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: