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Author: Michelle Moyer Publisher: ISBN: Category : Grapes Languages : en Pages : 45
Book Description
Understanding the nutrient requirements of perennial fruit crops is paramount to the longevity and sustainability of a commercial operation. This guide provides basic information on grape plant nutritional requirements, and how those nutrients become available for use. It also provides specific information relating to vineyards; how site, soil, and viticulture practices influence nutrient uptake. Information on how to soil and tissue test for vine nutrient status is described, as well as specific recommendations for correcting nutrient deficiencies, broken down by the key macro- and micronutrients required by grapevines.
Author: Michelle Moyer Publisher: ISBN: Category : Grapes Languages : en Pages : 45
Book Description
Understanding the nutrient requirements of perennial fruit crops is paramount to the longevity and sustainability of a commercial operation. This guide provides basic information on grape plant nutritional requirements, and how those nutrients become available for use. It also provides specific information relating to vineyards; how site, soil, and viticulture practices influence nutrient uptake. Information on how to soil and tissue test for vine nutrient status is described, as well as specific recommendations for correcting nutrient deficiencies, broken down by the key macro- and micronutrients required by grapevines.
Author: Molly McIlquham Publisher: ISBN: Category : Grapes Languages : en Pages : 0
Book Description
Soil health in vineyards describes the ability of the soil to resist disturbances, like large wind and rain events, improve the efficiency of nutrient use, minimizing excess losses to the environment, and grow a healthy crop while also benefiting the surrounding landscape. With repeated measurements, vineyard managers can track changes in soil health over time. Building on soil fertility and soil quality concepts, soil health encompasses the feedback between soil organisms and soil physical and chemical properties. Each of the indicators described in this article measure soil health individually but ultimately are all connected.
Author: John Watson Publisher: ISBN: Category : Viticulture Languages : en Pages : 116
Book Description
"These proceedings from the shortcourse will help potential growers to evaluate the economics and feasibility of a vineyard enterprise and provide growers with a guide to the production practices necessary to establish and produce grapes."--Amazon.com viewed Oct. 15, 2020.
Author: Molly Lynn McIlquham Publisher: ISBN: Category : Soil management Languages : en Pages : 0
Book Description
Soil health, the ability of a soil to function as a living ecosystem and sustain plants, animals, and humans, has been extensively studied in the Midwest and Northeastern U.S. in rainfed annual cropping systems. However, information is lacking for improving and assessing soil health in irrigated specialty cropping systems, especially for wine grape (Vitis vinifera L.) growers in the Pacific Northwest, where soil health threats and cropping goals are drastically different. Soil physical, chemical, and biological properties related to important functions are assessed through indicator measurements, but regional targets for each measurement must be established to account for the effects of inherent soil type and climate. Additionally, guidance on how management practices may influence soil properties in the drip-irrigated vineyards must be evaluated. To address this gap in knowledge, a soil health assessment was conducted across Washington state’s primary wine grape growing region, sampling 70 sites with varying management and measuring 14 soil health indicators. Producers provided guidance on "good" and "challenging" field pairs and participated in questionnaire-led interviews to gather management histories for each block. Preliminary scoring curves were developed for soil health indicators measured. Curves for permanganate oxidizable carbon and soil protein were shifted negatively from scoring curves being used across the U.S. due to inherent differences in soils and climate. Soil health changes from management practices were also analyzed, and compost additions increased potentially mineralizable nitrogen and cation exchange capacity. No differences in soil health indicators were detected as a result of managing alleyway vegetation. The nature of the study allowed for a considerable variation in the establishment of alleyway vegetation and compost application rates, therefore decreasing the power to detect changes. Indicators unique to Vitis vinifera in Washington state include measuring northern root knot nematode (Meloidogyne hapla); however, no management practices affected the populations. No measured soil health differences were detected between farmer identified "good" and "challenging" pairs. Data collected from this soil health assessment will provide growers with attainable measured soil health ranges disseminated through an Extension publication and provide a framework and guidance for further research on soil health management in vineyards.
Author: Markus Keller Publisher: Academic Press ISBN: 0124200087 Category : Technology & Engineering Languages : en Pages : 522
Book Description
The Science of Grapevines: Anatomy and Physiology is an introduction to the physical structure of the grapevine, its various organs, their functions and their interactions with the environment. Beginning with a brief overview of the botanical classification (including an introduction to the concepts of species, cultivars, clones, and rootstocks), plant morphology and anatomy, and growth cycles of grapevines, The Science of Grapevines covers the basic concepts in growth and development, water relations, photosynthesis and respiration, mineral uptake and utilization, and carbon partitioning. These concepts are put to use to understand plant-environment interactions including canopy dynamics, yield formation, and fruit composition, and concludes with an introduction to stress physiology, including water stress (drought and flooding), nutrient deficiency and excess, extreme temperatures (heat and cold), and the impact and response to of other organisms. Based on the author’s years of teaching grapevine anatomy as well as his research experience with grapevines and practical experience growing grapes, this book provides an important guide to understanding the entire plant. Chapter 7 broken into two chapters, now "Environmental Constraints and Stress Physiology and Chapter 8 "Living with Other Organisms" to better reflect specific concepts Integration of new research results including: Latest research on implementing drip irrigation to maximize sugar accumulation within grapes Effect of drought stress on grapevine’s hydraulic system and options for optimum plant maintenance in drought conditions The recently discovered plant hormone – strigolactones – and their contribution of apical dominance that has suddenly outdated dogma on apical dominance control Chapter summaries added Key literature references missed in the first edition as well as references to research completed since the 1e publication will be added
Author: Joan R. Davenport Publisher: ISBN: Category : Fertilization of plants Languages : en Pages : 5
Book Description
"Conclusion: When leaf nutrient levels are outside the critical range (Table 2), it often means that an adjustment to your fertilizer management program is needed. In general, a low concentration of a nutrient means that you should increase your fertilizer additions of this nutrient, and a high concentration means that you should reduce them. However, make certain you use a tissue test in conjunction with the physical appearance of your vines. If the vines are very stunted and tissue nutrient levels are high, it could be due to insufficient water at a critical growth period. If the vines are overly vigorous and the tissue levels are low, it likely means that an excess of one nutrient (usually N) has spurred growth and the concentrations of other nutrients may be "diluted" across the entire canopy. Regardless, when adjusting your fertilizer management plans, only make small changes over time. With perennial fruit crops, over-adjustment can lead to negative long-term consequences (e.g., excessive canopy growth with excessive N) which may take years to correct."
Author: Siyuan Tan Publisher: ISBN: Category : Companion planting Languages : en Pages : 132
Book Description
Two experiments were conducted on wine grapes 'Chardonnay' and 'Gewurtztraminer' (Vitis vinifera L.) in 1986 and 1987 to investigate the performance of grapes in competition with perennial ryegrass (Lolium perenne L.) 'Manhattan 11' sod, the competition between sod and grapes for nutrients and moisture and the effects of nitrogen fertilization and water supply on this competition. Three vineyard floor vegetation management methods, bare floor, mowed sod and unmowed sod, were used to establish three levels of competition between sod and grapes. Nitrogen fertilization at 0, 137 and 274 kg/ha and soil moisture varied with and without irrigation were used to evaluate certain limiting resources. Sods, whether mowed or not, significantly reduced grape growth in both 1986 and 1987 and yield in 1987. Fruit soluble solids were increased by unmowed sod treatment in 1987. The sod did not affect grape leaf P, K, Mg, Cu and Zn concentrations but reduced grape leaf N and Fe in 1986 and S, Ca, B and Mn concentrations in 1987. The sod also decreased total amounts of all nutrients measured in grape leaves. Soil moisture within grape rows was not reduced by sod in mid-July, but soil moisture measured in late July and September between grape rows was reduced by the sod. Nitrogen fertilization enhanced grape growth in 1987 but did not affect grape yield and quality. Nitrogen fertilization increased grape leaf N in 1986 and grape leaf Mg and Mn concentrations in 1987, but decreased grape leaf P, K, S, B in both 1986 and 1987, Ca in 1986 and Cu, Zn concentrations in 1987. Nitrogen fertilization increased total amounts of N, S, Ca, Mg, Mn, Fe and Zn but did not affect total amounts of P, K, Cu and B in grape leaves. Vineyard floor vegetation management and nitrogen fertilization interacted significantly when evaluated by measuring grape leaf nitrogen concentration in 1987. Nitrogen fertilization at the rates used can compensate for the reduction of nitrogen in grape leaves caused by the sod. Nitrogen fertilization and water supply enhanced each other in affecting grape growth. Irrigation had no significant effect on grape leaf N, P, Ca, Mg, Mn and Fe concentrations but increased K, S, Cu, B and Zn concentrations and total amounts of all nutrients except Fe measured in mowed sod plots receiving no nitrogen fertilizer. Grass growth was not reduced by mowing, consequently mowed and unmowed sod treatments were not significantly different from each other as measured by grape growth, yield and nutrient status. Grass growth was enhanced by nitrogen fertilization.
Author: Michelle Moyer
Author: Michelle Moyer
Author: A. I. Dow
Author: Zakaria Ismail Ragab
Author: Molly McIlquham
Author: John Watson
Author: 
Author: Molly Lynn McIlquham
Author: Markus Keller
Author: Joan R. Davenport
Author: Siyuan Tan