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Author: Jonathan Douglas Sammons Publisher: ISBN: Category : Baldcypress Languages : en Pages : 132
Book Description
Abstract: Increased environmental awareness combined with a decrease in available water for irrigation has required the nursery industry to evaluate water and nutrient efficiencies. The production of plants in containers reduces the rooting volume available to the plant by about 95% resulting in a limited reservoir of moisture and nutrients. The substrates most commonly used in container production are soilless and porous, with pine bark comprising all or at least a majority of the substrate. This production environment requires nursery producers to irrigate daily to maximize plant performance. As irrigation volume increases both water and nutrient efficiencies decrease. This work investigates the interactions of irrigation, fertilizer rate, and water and nutrient efficiencies. A plant-integrated, gravimetric, substrate moisture monitoring system was used to control irrigation volume and limit leachate volumes to near-zero levels. Effective container capacity (ECC) was used to determine irrigation volumes and frequency. ECC was defined as the maximum mass of the container, substrate and plant unit after gravitational water loss. The system used the ECC target to deliver irrigation within a narrow range of substrate moisture contents to study the effects of irrigation volume on growth, water use, and nutrient uptake of baldcypress (Taxodium distichium L.). In the summer of 2006, the gravimetric substrate monitoring system was proven as an effective, plant-integrated method of reducing leachate volume that required minimal maintenance under the four month experimental period. Under a near-zero leachate irrigation system, irrigation volume and leachate volume (by definition) are decreased; substrate nutrient concentration was increased resulting in increased plant tissue nutrient concentration, and an increase in water-use efficiency. Nitrogen use efficiency was not affected by irrigation regime in this study, as fertilizer rate impacted uptake of nitrogen.
Author: Jonathan Douglas Sammons Publisher: ISBN: Category : Baldcypress Languages : en Pages : 132
Book Description
Abstract: Increased environmental awareness combined with a decrease in available water for irrigation has required the nursery industry to evaluate water and nutrient efficiencies. The production of plants in containers reduces the rooting volume available to the plant by about 95% resulting in a limited reservoir of moisture and nutrients. The substrates most commonly used in container production are soilless and porous, with pine bark comprising all or at least a majority of the substrate. This production environment requires nursery producers to irrigate daily to maximize plant performance. As irrigation volume increases both water and nutrient efficiencies decrease. This work investigates the interactions of irrigation, fertilizer rate, and water and nutrient efficiencies. A plant-integrated, gravimetric, substrate moisture monitoring system was used to control irrigation volume and limit leachate volumes to near-zero levels. Effective container capacity (ECC) was used to determine irrigation volumes and frequency. ECC was defined as the maximum mass of the container, substrate and plant unit after gravitational water loss. The system used the ECC target to deliver irrigation within a narrow range of substrate moisture contents to study the effects of irrigation volume on growth, water use, and nutrient uptake of baldcypress (Taxodium distichium L.). In the summer of 2006, the gravimetric substrate monitoring system was proven as an effective, plant-integrated method of reducing leachate volume that required minimal maintenance under the four month experimental period. Under a near-zero leachate irrigation system, irrigation volume and leachate volume (by definition) are decreased; substrate nutrient concentration was increased resulting in increased plant tissue nutrient concentration, and an increase in water-use efficiency. Nitrogen use efficiency was not affected by irrigation regime in this study, as fertilizer rate impacted uptake of nitrogen.
Author: Xueni Wang Publisher: ISBN: 9781303628078 Category : Container gardening Languages : en Pages : 123
Book Description
Reducing the use of water and plastics in nursery production can have a large impact on the sustainability of a nursery operation. Container-grown woody ornamentals were irrigated at four different levels based on daily water use (DWU) to study the impact on plant growth, leachate electrical conductivity, pH, runoff water volume and nutrient loss. For all taxa, final growth index, leachate electrical conductivity (EC), pH, runoff water volume, runoff NO 3- and PO43- concentration were similar under all treatments. Water runoff volume and nutrient loss were much lower than the conventional nursery irrigation volume used by Warsaw et al., 2009. Alternative containers were evaluated to compare water use, plant growth, leachate EC, pH, root zone temperature and container physical properties and biodegradability compared to conventional plastic containers. Container type did not affect final plant growth index, leachate EC or pH. The seasonal mean substrate temperature in all alternative containers was lower than that of plastic containers. Paper fiber containers used more water than plastic containers in 2011; however plastic containers had the greater water use than alternative containers in 2012. All alternative containers tested passed the germination tests for biodegradability according to ASTM D6868, 6400 and D5338. Alternative containers tested were not proven to be biodegradable according to the ASTM D 5338 standard. -- Abstract.
Author: Kevin A. Handreck Publisher: UNSW Press ISBN: 9780868407968 Category : Gardening Languages : en Pages : 556
Book Description
This is a comprehensive revision ofGrowing Media, first published in 1984 and last revised in 2002. Since its first publication the book has been a core text for Horticulture students at TAFE colleges and universities as well as an important reference title.
Author: Khan Amanullah Publisher: BoD – Books on Demand ISBN: 9535137689 Category : Science Languages : en Pages : 252
Book Description
Nitrogen is the most yield-restraining nutrient in crop production globally. Efficient nitrogen management is one of the most important factor for improving nitrogen use efficiency, field crops productivity and profitability. Efficient use of nitrogen for crop production is therefore very important for increasing grain yield, maximizing economic return and minimizing nitrous oxide (N2O) emission from the fields and nitrate (NO3) leaching to ground water. Integrated nitrogen management is a good strategy to improve plant growth, increase yield and yield components, grain quality and reduce environmental problems. Integrated nitrogen management (combined use of chemical + organic + bio-fertilizers) in field crop production is more resilient to climate change.
Author: Kathleen A. Moore Publisher: NC State Extension ISBN: 9781469669731 Category : Gardening Languages : en Pages : 728
Book Description
This national award winning book, now in its second edition, was developed especially for Master Gardener volunteers and home gardeners and is a primary source for research-based information on gardening and landscaping successfully in North Carolina and the Southeast. A fundamental reference for any seasoned gardener, the North Carolina Extension Gardener Handbook is also written to appeal to beginners just getting their hands dirty. It explains the "why and how" basics of gardening from soils and composting to vegetable gardening and wildlife management. Advice on garden design, preparation, and maintenance covers all types of plantings including lawns, ornamentals, fruits, trees, and containers. This handbook provides color images, detailed graphics, diagnostic tables, case studies, frequently asked questions, and specific management strategies for insects, diseases, weeds, and other pests. Written by a team of the state's leading horticulture experts, it contains a wealth of information to support you in creating and managing thriving gardens, lawns, and landscapes. The North Carolina Extension Gardener Handbook is an essential book for serious gardeners in North Carolina and the Southeast. Want to learn more? * Visit go.ncsu.edu/eg-handbook to view information contained in this book in an open access format. * Access free gardening resources from NC State Extension by visiting gardening.ces.ncsu.edu. * Find the Extension center in your county to speak with local experts by visiting www.ces.ncsu.edu/directory. * Become a Master Gardener volunteer and join an outstanding group of life-long learners working together to change the world. Learn how at ncemgv.org.
Author: Margaret McMahon Publisher: ISBN: Category : Nature Languages : en Pages : 600
Book Description
"Hartmann's Plant Science: Growth, Development, and Utilization of Cultivated Plants, 3rd edition," is designed for introductory courses in Plant Science, and Horticulture found in departments of agriculture or biology. It offers a comprehensive introduction to plant science using a scientific and substantive approach to present the fundamentals of botany, plant physiology, and environmental factors affecting plant growth as well as the integration of these topics into strategies of producing plants for human use as food, fiber and recreation. Some of the features of this text include: Photos and illustrations to highlight and reinforce the information presented in the text Chapter objectives, key terms, and study questions to help students focus on and review the important concepts in each chapter Updated information on the methods and issues related to the production and utilization of plants Lists of web resources that provide the latest statistics, data, and developments in crop production A free companion website with practice questions to provide additional review material
Author: M. Naeem Publisher: Springer Nature ISBN: 303041552X Category : Technology & Engineering Languages : en Pages : 443
Book Description
This comprehensive volume covers recent studies into agricultural problems caused by soil and water contamination. Considering the importance of agricultural crops to human health, the editors have focused on chapters detailing the negative impact of heavy metals, excessive chemical fertilizer use, nutrients, pesticides, herbicides, insecticides, agricultural wastes and toxic pollutants, among others, on agricultural soil and crops. In addition, the chapters offer solutions to these negative impacts through various scientific approaches, including using biotechnology, nanotechnology, nutrient management strategies, biofertilizers, as well as potent PGRs and elicitors. This book serves as a key source of information on scientific and engineered approaches and challenges for the bioremediation of agricultural contamination worldwide. This book should be helpful for research students, teachers, agriculturalists, agronomists, botanists, and plant growers, as well as in the fields of agriculture, agronomy, plant science, plant biology, and biotechnology, among others. It serves as an excellent reference on the current research and future directions of contaminants in agriculture from laboratory research to field application.
Author: Md Asaduzzaman Publisher: BoD – Books on Demand ISBN: 9535117394 Category : Science Languages : en Pages : 176
Book Description
Soilless Culture - Use of Substrates for the Production of Quality Horticultural Crops provides useful information on the techniques of growing horticultural crops using either inert organic or inorganic substrates and also on use of substrates consisting locally available and inexpensive materials with adequate physical and chemical properties. The contents mainly includes influence of different substrates on horticultural crops grown under soilless culture, production of vegetables and ornamental crops in water shortage area, comparative evaluation of commercial inert substrate used for growing high value horticultural crops. In this book, interesting researches from around the world are brought together to produce a resource for teachers, researcher, and advanced students of biological science.
Author: Jonathan Douglas Sammons
Author: Jonathan Douglas Sammons
Author: Xueni Wang
Author: Kevin A. Handreck
Author: 
Author: Khan Amanullah
Author: Kathleen A. Moore
Author: Margaret McMahon
Author: M. Naeem
Author: Md Asaduzzaman
Author: