Download or read book Impact of Overhead Irrigation on Nitrogen Dynamics and Marketable Yield of Potato written by Haider Abbas and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Southern Manitoba, potato producers are experiencing wetter and drier conditions within the soil profile during the growing season leading to poor quality and inconsistent yields. Russet Burbank Potato cultivar was grown in Southern Manitoba on fine sandy loam soil in a two year (2013-2014) study using two water management treatments: (i) overhead irrigation and (ii) no-irrigation. The main objectives of the study were (i) to assess the impact of overhead irrigation on water table depth and potato yield (ii) to estimate the shallow groundwater contribution to potato water requirement through upward flux (iii) to track the nitrogen dynamics within the potato root-zone under overhead irrigation and no-irrigation scenarios (iv) to examine the effects of no-irrigation and overhead irrigation system at critical growth stages on marketable yield and quality of potatoes. In 2013, water was applied using a linear move irrigation system and in 2014 a rain gun irrigation system was used for the irrigated treatment. Volumetric soil water content, precipitation, irrigation depth, water table depth, nitrate concentration and electrical conductivity in potato root-zone, groundwater electrical conductivity, weather variables, total potato yield, marketable yield, and quality parameters were measured. The total yield was not significantly different between the two treatments in both years. The marketable yield of the irrigated treatment (36.89 MT/ha) was 20% higher (p = 0.017) compared to the non-irrigated treatment (30.74 MT/ha) in 2013. However, no significant difference was found between the irrigated (39.0 MT/ha) and non-irrigated (43.7 MT/ha) treatments in 2014. Potato yields from both treatments were significantly correlated with the average groundwater depth. Water balance analysis within the root-zone during rainy and rain-free periods showed that nitrate rich groundwater may have contributed to some of the crop water demand. The lack of rainfall and high temperature during tuber initiation and tuber bulking stages resulted in the accumulation of high concentration of nitrates within the root-zone by the late release of nitrates from the polymer-coated urea and the upward migration of groundwater containing 55 ppm and 70 ppm of nitrates in the 2013 and 2014 growing seasons, respectively. Overhead irrigation was found to be economically advantageous to produce better quality potatoes with higher marketable yields.
Download or read book Irrigation Fertilization and Soil Management of Crops in Rotation written by Jay L. Haddock and published by . This book was released on 1974 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of nitrogen and water in potato production written by A.J. Haverkort and published by BRILL. This book was released on 2023-08-28 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potato is very sensitive to water and nitrogen applied during growth, affecting its profitability and impact on the environment. Recent scientific and technical breakthroughs enable us to make best use of water and nitrogen. This book shows how scientific knowledge works in practice, now and well into the new millennium. This systematic and comprehensive book on crop, soil and water technologies will assist producers to achieve optimal production with maximum benefit to themselves and to the environment. Crucial questions, such as: - Which sampling techniques of plants and soil are available and which should I use? - What do the data gathered mean and how do they assist me in water and nitrogen application? - Which decision support systems exist for rain-fed, irrigated, precision or organic farming? are answered. The book updates and interprets knowledge in a simple, easily understandable way. It is intended for farmers, farmers' consultants, researchers and decision makers and is also recommended for students in soil science and agronomy.
Download or read book Effects of Nitrogen Management on Potato Yield Fertilizer Nitrogen Uptake Efficiency and Nitrogen Movement in Soil written by Brad Christopher Joern and published by . This book was released on 1991 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation and Nitrogen Effects on the Factors which Influence the Yield of a Hill of Potatoes written by Thomas Howard Obourn and published by . This book was released on 1962 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Use Efficiency in Irrigated Potato written by Francis Zvomuya and published by . This book was released on 2000 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potato Nitrogen Management Under Two Irrigation Systems written by Seth A. Wilner and published by . This book was released on 1998 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Sprinkler Irrigation and Nitrogen Management on Potato Crop Production Resource Use Efficiency and Ground water Quality written by Muhammad Sharif and published by . This book was released on 1992 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integration of Potato Production Dairy Forage and Manure Management Systems written by Timothy John Boring and published by . This book was released on 2005 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Irrigation and Nitrogen Management on Potato Tuber Yield N Recovery and Leaching in Northeast Florida written by Yandi Fan and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Was because drip tapes could not be installed until potato emerged. Therefore, a booster dose of fertilizer at planting to meet the nutrient requirement and establishment of potato plants is probably necessary to overcome the delayed fertigation problem.
Download or read book Best Management Practices for Nitrogen Use written by Carl Jay Rosen and published by . This book was released on 2008 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potato Yield and Grade as Influenced by Nitrogen Fertilizer and Irrigation Frequency written by Clinton Cecil Jacks and published by . This book was released on 1972 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of irrigation frequencies and rates and time of nitrogen fertilizer application on the yields, grades and N status of Russet Burbank potatoes were determined on a sandy soil near Hermiston, Oregon. Increasing the frequency of irrigation from 72 to 48 to 12-hours did not result in increases of yields or improved grades of tubers during the growing season. Optimum yields and grades were obtained when 196 lbs. N/A was applied in a single fertilizer application with 88 lbs. N/A in the soil as nitrate-N. This N treatment corresponded to 0.58, 0.42, 0.46, 0.32 and 0.17 percent petiole nitrate-N on July 6, July 21, August 4, August 24 and September 9 sampling dates, respectively. Split N fertilizer applications resulted in higher petiole nitrate-N levels during the growing season, similar total yields and lower yields of U.S. No. 1 tubers than treatments in which all of the fertilizer was applied at planting. The higher petiole nitrate-N levels delayed tuber maturity and subsequently the split N applications were influenced by the high soil and air temperatures in July and August and formed increased yields of off-shape tubers. This emphasizes the importance of adequate N early in the growing season in order to prevent delayed vine and tuber growth and the importance of even assimilation of nutrients by the tubers in later stages of development.
Download or read book Potato Production Systems written by Jeffrey C. Stark and published by Springer Nature. This book was released on 2020-04-27 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive guide to potato production systems management contains 20 chapters and more than 350 color photographs. Beginning with the history of potato culture, it spans all aspects of potato production, pest and planting management, storage, and marketing. Written by a team of over 35 scientists from North America, this book offers updated research-based information and serves as a unique, valuable tool for researchers, extension specialists, students, and farm managers. More than a description of principles, it contains practical analytical tools, charts, and methods to create guidelines for best production practices and cost estimates. Some key areas include: Potato Growth and Development, Potato Variety Selection and Management, Seed and Planting Management, Seed Production and Certification, Field Selection, Crop Rotation, and Soil Management, Integrated Pest Management for Potatoes, Potato Nutrient Management, Irrigation Management, Tuber Quality, Economics and Marketing, Production Costs, among others. Potato Production Systems should be a valuable reference for successful culture of the "noble tuber."
Download or read book Managing Cover Crops Profitably 3rd Ed written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Download or read book The Potato Crop written by P. M Harris and published by Springer. This book was released on 2013-12-19 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deficit Irrigation Practices written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2002 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the context of improving water productivity, there is a growing interest in deficit irrigation, an irrigation practice whereby water supply is reduced below maximum levels and mild stress is allowed with minimal effects on yield. Under conditions of scarce water supply and drought, deficit irrigation can lead to greater economic gains than maximizing yields per unit of water for a given crop; farmers are more inclined to use water more efficiently, and more water-efficient cash crop selection helps optimize returns. However, this approach requires precise knowledge of crop response to water as drought tolerance varies considerably by species, cultivar and stage of growth. The studies present the latest research concepts and involve various practices for deficit irrigation. Both annual and perennial crops were exposed to different levels of water stress, either during a particular growth phase, throughout the whole growing season or in a combination of growth stages. The overall finding, based on the synthesis of the different contributions, is that deficit or regulated-deficit irrigation can be beneficial where appropriately applied. Substantial savings of water can be achieved with little impact on the quality and quantity of the harvested yield. However, to be successful, an intimate knowledge of crop behavior is required, as crop response to water stress varies considerably.
Download or read book Water Saving in Agriculture written by and published by . This book was released on 2008 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
