Download or read book Influence of Post harvest Burning Thinning Shading and Residue Management on the Subsequent Growth and Seed Yield of Festuca Rubra L written by Syng Chul Kim and published by . This book was released on 1973 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of post-harvest burning of red fescue on production of shoots, roots and inflorescences as well as seed yield were determined at the clonal and community level by comparing fescue plants in a burned area with those in unburned plots within the same field. Studies were also conducted to determine what environmental factors are involved in the seed yield increase of red fescue subsequent to burning. Open post-harvest burning of straw and stubble of red fescue was beneficial in maintaining high seed yield. An increase in tiller population coupled with vigorous root growth during the fall and winter and a greater number of inflorescences produced the following spring were the most significant differences observed in the burned area. Seed yield increases in burned plots were a direct result of increased panicles per unit area. Complete removal of residue either by hand or mechanical means also resulted in seed yield comparable to that from burning. Complete removal of residue either by burning or mechanical methods also increased early season tiller development. Apparently more of these tillers were florally induced than tillers produced on non-residue removed plots. The increased early season tillering and the effective fertile tiller production on burned plots appeared to be due to a more favorable micro-environment created by residue removal. The major environmental factors involved in this positive response of red fescue seed production were light intensity and temperature. Although it was not studied, nutritional condition of the plant during floral induction could be an additional, beneficial response to burning resulting from more efficient fertilizer utilization.
Download or read book O S U Theses and Dissertations 1970 1977 written by Oregon State University and published by . This book was released on 1980 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1972 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1973 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index Agriculture written by and published by . This book was released on 1984 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agriculture Agronomy written by University Microfilms International and published by . This book was released on 1977 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book British Columbia Rangeland Seeding Manual written by Allan Dobb and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Effects of Conservation Practices on Grazing Lands written by and published by . This book was released on 2006 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Ecology and New Approaches for Management written by Anna Kocira and published by MDPI. This book was released on 2021-09-08 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satisfying consumer needs through the production of healthy and nutritious agricultural products is a substantial challenge facing modern agriculture. However, agricultural production should be carried out with care for plant health, biological safety of products, and environmental safety while minimizing the risks to human health. Therefore, the implementation of agricultural practices while respecting these principles is very important for improving the quantity and quality of crops. Additionally, ecosystems have been altered as a result of human activities and climate change, resulting in the reduction of biodiversity and creation of new niches where pests can thrive. This is of particular importance in 2020, as the United Nations General Assembly declared this year as the International Year of Plant Health (IYPH), with “protecting plants, protecting life” as a leading subject. This Special Issue promotes the subject of plant health and emphasize the importance of preventing the spread of pests, including weeds, which cause substantial economic losses. Research articles cover topics related to the biology and harmfulness of weeds, particularly in connection with crop health, segetal weed communities and their biodiversity, and integrated methods of weed control. For this Special Issue, we welcome all types of articles, including original research, opinions, and reviews.
Download or read book California Friendly written by Douglas Kent and published by . This book was released on 2017-03-09 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: California Friendly® is California's future. Water reliability is dependent on using water wisely. We need to create sustainable gardens that rely on less water. This maintenance guide will help you support California's future:*Uncover the secrets of efficient irrigation.*Explore the techniques for irrigating with recycled water.*Get the maintenance tips for hundreds of California Friendly® plants.*Discover the methods and means of managing weed and pest infestations.*Learn how to maintain rainwater capture opportunities.This book has been written for every landscaper, gardener and land manager in Southern California. It has been produced by the very first collaboration between three Southern California organizations, LADWP, MWD and SoCalGas. Grab a copy--they are free--use the information in your garden and help us create a beautiful, thriving and sustainable future.
Download or read book Silvics of Forest Trees of the United States written by and published by . This book was released on 1965 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agroforestry in Sustainable Agricultural Systems written by Louise E. Buck and published by CRC Press. This book was released on 1998-12-28 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroforestry in Sustainable Agricultural Systems examines the environmental and social conditions that affect the roles and performance of trees in field- and forest-based agricultural production systems. Various types of ecological settings for agroforestry are analyzed within temperate and tropical regions. The roles of soil, water, light, nutrient and pest management in mixed, annual, woody perennial and livestock systems are discussed. Important new case studies from around the world offer innovative strategies that have been used successfully in raising forests and tree products on a sustainable basis for commercial harvesting and for providing other environmental services in land conservation and watershed management.
Download or read book Soil Conservation Technical Handbook written by Doug H. Hicks and published by . This book was released on 2001-10-01 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infiltration of Water Into the Soil written by and published by . This book was released on 1940 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Mountain Conservation in a Changing World written by Jordi Catalan and published by Springer. This book was released on 2017-08-03 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides case studies and general views of the main processes involved in the ecosystem shifts occurring in the high mountains and analyses the implications for nature conservation. Case studies from the Pyrenees are preponderant, with a comprehensive set of mountain ranges surrounded by highly populated lowland areas also being considered. The introductory and closing chapters will summarise the main challenges that nature conservation may face in mountain areas under the environmental shifting conditions. Further chapters put forward approaches from environmental geography, functional ecology, biogeography, and paleoenvironmental reconstructions. Organisms from microbes to large carnivores, and ecosystems from lakes to forest will be considered. This interdisciplinary book will appeal to researchers in mountain ecosystems, students and nature professionals. This book is open access under a CC BY license.
Download or read book Sustainable Grassland Productivity written by J. Lloveras and published by . This book was released on 2006 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
