Download or read book Irrigation Scheduling for Sovereign Coronation Grapevine Based Upon Evapotranspiration Calculations and Crop Coefficients written by Amal Eaiwesh and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Several irrigation treatments were evaluated on Sovereign Coronation table grapes at two sites over a 3-year period in the cool humid Niagara Peninsula of Ontario. Trials were conducted in the Hippie (Beamsville, ON) and the Lambert Vineyards (Niagara-on-the-Lake, ON) in 2003 to 2005 with the objective of assessing the usefulness of the modified Penman-Monteith equation to accurately schedule vine irrigation needs. Data (relative humidity, windspeed, solar radiation, and temperature) required to precisely calculate evapotranspiration (ETq) were downloaded from the Ontario Weather Network. One of two ETq values (either 100 or 150%) were used in combination with one of two crop coefficients (Kc; either fixed at 0.75 or 0.2 to 0.8 based upon increasing canopy volume) to calculate the amount of irrigation water required. Five irrigation treatments were: un irrigated control; (lOOET) X Kc =0.75; 150ET X Kc =0.75; lOOET X Kc =0.2-0.8; 150ET X Kc =0.2-0.8. Transpiration, water potential (v|/), and soil moisture data were collected each growing seasons. Yield component data was collected and berries from each treatment were analyzed for soluble solids (Brix), pH, titratable acidity (TA), anthocyanins, methyl anthranilate (MA), and total volatile esters (TVE). Irrigation showed a substantial positive effect on transpiration rate and soil moisture; the control treatment showed consistently lower transpiration and soil moisture over the 3 seasons. Transpiration appeared accurately reflect Sovereign Coronation grapevines water status. Soil moisture also accurately reflected level of irrigation. Moreover, irrigation showed impact of leaf \|/, which was more negative throughout the 3 seasons for vines that were not irrigated. Irrigation had a substantial positive effect on yield (kg/vine) and its various components (clusters/vine, cluster weight, and berries/cluster) in 2003 and 2005. Berry weights were higher under the irrigated treatments at both sites. Berry weight consistently appeared to be the main factor leading to these increased yields, as inconsistent responses were noted for some yield variables. Soluble solids was highest under the ET150 and ET100 treatments both with Kc at 0.75. Both pH and TA were highest under control treatments in 2003 and 2004, but highest under irrigated treatments in 2005. Anthocyanins and phenols were highest under the control treatments in 2003 and 2004, but highest under irrigated treatments in 2005. MA and TVE were highest under the ET150 treatments. Vine and soil water status measurements (soil moisture, leaf \|/, and transpiration) confirmed that irrigation was required for the summers of 2003 and 2005 due to dry weather in those years. They also partially supported the hypothesis that the Penman-Monteith equation is useful for calculating vineyard water needs. Both ET treatments gave clear evidence that irrigation could be effective in reducing water stress and for improving vine performance, yield and fruit composition. Use of properly scheduled irrigation was beneficial for Sovereign Coronation table grapes in the Niagara region. Findings herein should give growers some strong guidehnes on when, how and how much to irrigate their vineyards.
Download or read book Evapotranspiration and Irrigation Scheduling written by American Society of Agricultural Engineers and published by American Society of Agricultural & Biological Engineers. This book was released on 1996 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scheduling Irrigations written by Blaine Hanson and published by UCANR Publications. This book was released on 2007-01-01 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: his handy guide will help you schedule your irrigation needs so you can make every drop count. Inside you'll find sections on the relationship between crop evapotranspiration and yield, how to measure crop evapotranspiration by measuring soil moisture, and how to interpret those readings. One of a series of water management handbooks prepared by the University of California Irrigation Program.
Download or read book Water Balance Irrigation Scheduling Based on Jensen Haise Equation Software for Apple II II and IIE Computers written by Earl C. Stegman and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation Scheduling Model written by Ziad Khallouf and published by . This book was released on 1987 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical model was developed to predict reference crop evapo-transpiration (ETo) and schedule of irrigation utilizing basic soil, plant, water, and climatic data. The model selects among six methods to estimate ETo depending on availability of meteorological data. The Hargreaves (1985) equation was calibrated for use in semi-arid regions with climates similar to that of the Beqa'a valley in Lebanon, as a new method that requires temperature as measured data. Other meteoro¬logical data, such as maximum relative humidity, sunshine hours ratio, daytime wind, and solar radiation, need only to be estimated. Values of ETo as computed by the new method were closely related to those predicted by the modified Penman equation. Most of the ETo methods require extraterrestrial radiation (Ra) for calculation of ETo; hence, a method was developed to calculate Ra based on latitude, julian day, and maximum possible sunshine hours. The model is used to schedule irrigations for the whole growing season based on crop evapotranspiration, soil moisture storage, and plant root depth. The schedule of irrigation may be adjusted any time during the growing season by using field feedback soil moisture information. The input data required includes: the average past monthly and/or daily climatic data available for the region, soil type and allowable moisture depletion, soil and water salinity, planting and maximum root depths, and mid and late season crop coefficients. Other optional inputs help in better predicting the schedule of irrigation. The model outputs focus on the schedule of irrigation, depth or amount of water to be applied, moisture content distribution throughout the root zone, and ETo data. The model was verified utilizing data reported in literature and the effect of input para¬meters on the schedule of irrigation were determined. No significant differences were observed between model estimation of ETo and published values. Model output of the irrigation schedule was checked and validated.
Download or read book Crop Water Use written by Norman A. MacGillivray and published by . This book was released on 1993 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation Scheduling for Water Energy Conservation in the 80 s written by American Society of Agricultural Engineers and published by . This book was released on 1981 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation Scheduling Manual written by L. Salazar and published by . This book was released on 1984 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimating irrigation requirements: reference crop evapotranspiration, Crop coefficients; Soil and crop parameters: soil moisture storage and availability, Development of the soil water reservoir, Soil water availability and crop use, Soil intake characteristics; Irrigation scheduling: basic equations, Scheduling the farm system. Water management; Control of irrigation water: Farm control structures, Water measurement; Project irrigation scheduling; Use of lysimeters in irrigation scheduling; Developing the climate data base; Other aspects of irrigation management; Developing water management programs; Irrigation scheduling - successes and failures; Farm level scheduling.
Download or read book Scheduling Irrigation to Meet Crop Demands written by Canada. Department of Agriculture and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scheduling Irrigation to Meet Crop Demands written by Canada. Department of Agriculture and published by Agriculture Canada. This book was released on 1976 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conceptual Basis Formalisations and Parameterization of the Stics Crop Model written by Nadine Brisson and published by Editions Quae. This book was released on 2009-01-19 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The STICS crop model has been developed since 1996 at INRA in collaboration with other research and technical institutes. The model syntheses, illustrates and concretizes an important part of the French agronomic knowledge as a point of view on the field and cropping systems working. The formalisations of the STICS crop model presented in this book can be considered as references used in the framework of crop sciences. The book arrangement relies on the way the model designs the crop-soil system functioning, each chapter being devoted to a set of important functions such as growth initiation, yield onset, water uptake, transformation of organic matter etc. One chapter deals with the cropping system and long term simulations and the final chapter is about the involvement of the user in terms of option choices and parameterization. If this book is mainly intended for scientists who use the STICS model, it can also be useful for agronomists, crop modellers, students and technicians looking for elementary formalizations of the crop-soil system functioning.
Download or read book Water Heritage written by Willem Willems and published by . This book was released on 2017-01-15 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is vital for life, and its availability has been a concern for mankind throughout the ages. Its presence has always been ascertained in a variety of ways and the development of human society everywhere is connected with various forms of water management. Man also needed to manage water to find protection from its dangers and the need for that is increasing. In the coming decades, the impact of climate change is expected to intensify floods and droughts, affect groundwater resources, raise sea levels, increase pollution and enhance the frequency and magnitude of disasters. Societies around the world are challenged to adapt to these threats to ensure water security, economic prosperity and environmental and cultural sustainability. This book deals with the heritage of water management and the use that was made of water, as well as the impact of water management on heritage. An example of the former may be an ancient irrigation system in the Filipines or in the Middle East that still functions today, while the latter may reflect the importance of maintaining groundwater levels for the preservation of organic remains on archaeological sites or of wooden piles underneath standing buildings. In either case the papers in this book reflect the dynamic nature of water, and hence the equally dynamic relation between water management and heritage. This publication follows up on a Heritage and Water conference in Amsterdam, the first of its kind. Its main purpose is to credibly present the importance and value of heritage and historical experience for water and sustainable development, and vice versa, present the importance of water management for the protection of heritage. It presents evolving insights and concepts about Water and about Heritage from a variety of disciplines, policy and public perspectives illustrated with cases studies and aims to connect decision makers with experts such as engineers, archaeologists, historians, geographers, ecologist and landscape architects
Download or read book Natural Heritage from East to West written by Niki Evelpidou and published by Springer Science & Business Media. This book was released on 2010-01-19 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cumulative global transformations, occurring daily, affect important aspects of our life. Characteristic cultural and natural heritage, including sites of priceless value, is under constant threat. There are growing pressures, of both natural and human origin, such as wars, con icts, natural or technological disasters and the effects of global climate change. These provoke the continuous degradation of many sites included in the World Heritage List. In consequence, immediate strategic measures must be taken. Natural heritage is our legacy from the past, that we inherited from our ancestors and pass on to future generations. It is vital to realize its value and protect it by all possible means, enforcing innovative and sustainable action plans that promote global international co-operation. This book aims to address speci c natural heritage sites in Europe, from West to East. The six countries of study interest are Portugal, Malta, Greece, Italy, Romania and Turkey. For each case, the corresponding current status is presented. This is accompanied by recommended action plans for protection and conservation, tra- ing initiatives that improve the public awareness of natural heritage issues and efforts to estimate the natural/environmental value of the sites. The book is the overall result of an interregional initiative aiming to promote convergence, provoke public interest and recommend action for radical changes in our attitude towards heritage conservation.
Download or read book Fletcherism What It Is Or How I Became Young at Sixty written by Horace Fletcher and published by DigiCat. This book was released on 2022-06-02 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fletcherism: what it is: or, How I became young at sixty" by Horace fletcher is a fascinating book on nutrition and diet. The author here relates briefly the story of his regeneration, of how he rescued himself from the prospect of an early grave, and brought himself to his present splendid physical and mental condition. He tells of the discovery of his principles, which have helped millions of people to live better, happier, and healthier lives. The book is a good fit if you are concerned about health and diet.
Download or read book Sisters Super Creeps and Slushy Gushy Love Songs written by Karen McCombie and published by . This book was released on 2011 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ally knows her super-efficient big sis Linn finds their chaotic family a bit ... exasperating. But when Linn falls for Q, the tearaway lead singer in a local band, all her sensible ways go out of the window. Everyone else can see that Q's a creep, but does Ally have the courage to burst Linn's heart-shaped bubble?
Download or read book Yvain written by Chretien de Troyes and published by Yale University Press. This book was released on 1987-09-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: A twelfth-century poem by the creator of the Arthurian romance describes the courageous exploits and triumphs of a brave lord who tries to win back his deserted wife's love
Download or read book America s National Game written by Albert Goodwill Spalding and published by . This book was released on 1911 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is Albert Spaldings work of "historic facts concerning the beginning, evolution, development and popularity of base ball, with personal reminiscences of its vicissitudes, its victories and its votaries." It is one of the defining books in the early formative years of modern baseball.
