Download or read book Optimizing Nitrogen Management in Winter Wheat Production Systems for Improved Bread Baking Quality written by Ammar Sadiq Mahdi Al Zubade and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimizing Nitrogen Management for Soft Red Winter Wheat Yield Grain Protein and Grain Quality Using Precision Agriculture and Remote Sensing Techniques written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to improve nitrogen (N) management for soft red winter wheat (Triticum aestivum L.) in North Carolina with three areas of focus: delayed harvest effects on grain quality, explaining grain protein variability caused by management practices, and developing N recommendations at growth stage (GS) 30 using aerial color infrared (CIR) photography. Delayed harvest significantly reduced grain yield and test weight in the majority of trials. Yield reductions were attributed to dry, warm environments, possibly due to shattering. Test weight reductions were attributed to the negative effects of wetting and drying cycles. Of the 20 quality parameters investigated, flour falling number, clear flour, and farinograph breakdown times were significantly reduced due to delayed harvest, while grain deoxynivalenol (DON) levels increased with a delayed harvest. Environment contributed to grain protein variability (23%), though the majority of that variability was attributed to N management (52%). It was found that as grain protein levels increased at higher N rates and with the majority of N applied at GS 30, the overall grain protein variability increased. The recommendations to reduce grain protein variability are; to reduce the range in N fertilizer rates used, to avoid over application of N beyond what is required to optimize yields, and to apply spring N at GS 25. Relationships between derived agronomic optimum N rates and three spectral bands and 39 indexes were weak, but after separating the data into two biomass classes (low 1000 kg ha-1 and high 1000 kg ha-1), the relationships of optimum N rates with a relative Red and Green bands (relative to a high N-status reference plot) had the best (quadratic) relationships (R2 = 0.80 and 0.81, respectively) for the high biomass class. These results indicate that agronomic optimum N rates at GS 30 can be estimated using aerial CIR photographs if areas of low and high biomass can be determined.
Download or read book Optimizing Nitrogen Management for Soft Red Winter Wheat Yield Grain Protein and Grain Quality Using Precision Agriculture and Remote Sensing Techniques written by Dianne Carter Farrer and published by . This book was released on 2005 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: protein variability, delayed harvest, grain quality, winter wheat, remote sensing.
Download or read book Global Agricultural Trade And Developing Countries written by M. Ataman Aksoy And John C. Beghin and published by Manas Publications. This book was released on 2005 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global Agricultural Trade And Developing Countries Explores The Outstanding Issues In Global Agricultural Trade Policy And Evolving World Production And Trade Patterns. This Book Presents Research Findings Based On A Series Of Commodity Studies Of Significant Economic Importance To Developing Countries. Setting The Stage With Background Chapters And Investigations Of Cross-Cutting Issues, The Authors Describe Trade And Domestic Policy Regimes Affecting Agricultural And Food Markets And Analyze Product Standards And Compliance Costs And Their Effects On Agricultural And Food Trade. They Then Examine The Impact And Effectiveness Of Preferences And Review The Evidence On Attempts To Decouple Agricultural Support From Agricultural Output. Finally, They Assess The Potential Gains From Global Liberalization In Agricultural And Food Markets, And Their Sensitivity To Various Assumptions. Within This Broad Context Of Global Agricultural Policies And Reforms, The Authors Then Present Detailed Studies Of Commodity Markets That Feature Distorted Policy Regimes Among Industrial And Developing Countries Or That Are Important Contributors To Exports Of Developing Countries. The Book Will Aid Policymakers And Researchers In Approaching Global Negotiations And In Evaluating Domestic Policies On Agriculture. (Published In Collaboration With World Bank )
Download or read book Nitrogen in Agriculture written by Khan Amanullah and published by BoD – Books on Demand. This book was released on 2018-02-01 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Bread making quality of wheat written by Bob Belderok and published by Springer Science & Business Media. This book was released on 2000-09-30 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat is the world's most important agricultural commodity. In Europe, where wheat is the main staple, bread wheat (Triticum aestivum) covers the majority of land on which wheat is cropped. Wheat breeders and technologists have contributed greatly to the continued success of bread wheat and its products. The `bread-making quality' of a wheat variety can be described in relation to the processing its kernels must undergo to make a good bread. Bread wheat kernels must be suitable for proper milling into a flour that can produce a dough capable of becoming fine bread. The type of bread varies depending on local bread-making practices. Part I of this book contains a study of the anatomy and chemical composition of wheat kernels, and of the fundamental difference between `soft' and `hard' kernelled varieties. It relates these characteristics to the processes of milling, dough-making and manufacturing of bread, and to biscuit and pasta making. The genetic basis for these characteristics is illustrated, and assay methods for characterizing wheat varieties - ranging from Saunders' chewing test to the most recent developments in glutenin and gliadin research - are evaluated. Part II briefly describes - country by country - how bread-making quality has been integrated into wheat-breeding programmes throughout Europe, and how breeders have attempted to resolve the conflict between yield and quality. It describes how quality wheats `travelled' around the world - from their endogenic source in Eastern Europe to North America, and back again to Europe. This explains how specific genetic material can appear in the pedigrees of varieties grown in a wide range of agro-ecological zones. In addition to giving an interesting historical survey, the book points the way forward for breeders' efforts in the future. Bread-Making Quality updates and interprets knowledge in a way that makes it particularly accessible for food technologists, breeders, students, and teachers.
Download or read book Precision Nitrogen Management written by Stephen Edmond Taylor and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimizing Nitrogen Fertilizer Response by Winter Wheat and Rye written by D. B. Fowler and published by . This book was released on 1992 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Southwestern Alberta has been the traditional winter wheat production area in western Canada but in recent years the development of a practical snow management system using no-till seeding into standing stubble immediately after harvesting the previous crop has allowed an extension of this production area into most of the western prairies. Winter rye is also adapted to the no-till production system developed for winter wheat. Since most stubble fields are deficient in available soil nitrogen, fertilizer is a major cost in such production. This report summarizes the soil nitrogen response observed in 40 winter wheat and 20 winter rye trials representing a broad range of soil types and environments in western Canada.
Download or read book Improving Baking Quality of Soft Red Winter Wheat in Kentucky Through Breeding and Sulfur nitrogen Fertility Management written by Maria Paula Castellari and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Wheat Production written by Shah Fahad and published by BoD – Books on Demand. This book was released on 2018-08-16 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global wheat consumption in the 2016/2017 season is forecasted to reach a record high 736m tonnes, showing a growth of 25% in the last 15 years. This raises the question which outlets the wheat is going into, what the growth of these outlets is, which regions or countries have grown the most, and where do we see future potential. Strong competition of other feed grains like corn is expected to slow the growth of wheat used for feed in the next years, and in the future, companies involved in the grain supply chain and feeding industry will need to be flexible enough to continue to meet this fast-changing demand for feed grains. For feed producers, this means they need to be able to access supplies of different grains from different origins to allow for the cheapest composition of their feed, while grain suppliers need to be able to continuously best engage with global trading opportunities to originate grains in various regions and move them to demand regions as cost-effectively as possible.
Download or read book Growth and Quality Formation Regulated by Light in Horticulture Plants written by Houcheng Liu and published by Frontiers Media SA. This book was released on 2024-05-27 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Horticultural crop production plays an important role in the global food supply, and horticultural plants contain numerous health-promoting phytochemicals, such as vitamins, flavonoids, polyphenols, and other secondary metabolites. The formation of yield and nutritional quality depends on the intrinsic characteristics of horticultural crops and environmental conditions. Light is the primary energy source for photosynthesis, and light, ranging from UV to far-red, is a critical factor in regulating plant growth, morphogenesis, development, and metabolic processes. The physiological and molecular regulation of plant processes is related to the intensity, spectrum, direction, photoperiod, and timing of light. And light is the most important environmental factor determining the yield and quality of horticultural crops.
Download or read book Towards Site Specific Nitrogen Management in Hard Red Winter Wheat written by Doria Ali and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A site-specific N management approach has the potential to manage in-field variability and increase production and economic efficiencies by optimizing the nitrogen (N) inputs. Field studies were conducted to investigate the grain yield and protein responses of hard red winter wheat (Triticum aestivum L.) to several N management strategies across variable landscapes. Nine N treatments consisted of various combinations of N rates, sources and timings were applied at specific stages of crop development. Delta yield, delta protein and net returns were calculated to determine the spatial response to N across the field. Those parameters for each treatment varied spatially across the field. Normalized difference vegetation index and leaf area index could not explain the spatial response to N accurately. Overall, grain yield and protein responses to N strategies were highly dependent on the spatial position in each field; however, predicting the responses in time for deploying N management strategies were only weakly associated with canopy sensor data or soil characteristics.
Download or read book Bread making quality of wheat written by Bob Belderok and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat has a long history of serving as an important food crop to mankind. Especially in the Northern Hemisphere, it has been appreciated as a major source of energy through its carbohydrates, and in more recent times for its supply of valuable proteins. This combination of carbohydrates and proteins gives wheat its unique properties for making breads of different kinds of tastes. During the course of history, the quality of wheat has improved stead ily, undoubtedly for a long time by accident, and for reasons little under stood. Over the last 150 years our knowledge has increased on farming and crop husbandry, on bringing about improvements through goal-oriented plant breeding, and on milling and baking technology, leading to the standards that we enjoy today. This process will certainly continue as our knowledge of the genetic reservoir of wheat species increases. The European Cereal Atlas Foundation (ECAF) maintains the aim of in creasing and disseminating knowledge about cereal crops. Within that scope ECAF has decided to publish a book on the history of bread wheat in Europe, the development of associated bread-making technology, and the breeding of bread wheats during the twentieth century. As ECAF is a Dutch foundation, its Board is particularly pleased to have found three Dutch scientists willing to contribute to this volume. Two of them have served wheat science in the Netherlands for their entire scientific careers, spanning a period starting around 1955 and lasting for several decades of very productive wheat science development.
Download or read book Nitrogen in the Environment Sources Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.
Download or read book Nitrogen Management and Variety Selection for Dryland Production of Hard Red Winter Wheat in Northeastern Oregon written by Daniel Robert Jepsen and published by . This book was released on 2010 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proper nitrogen (N) management and variety selection are important for profitable hard red winter (HRW) wheat production in the dryland growing regions of northeastern Oregon. In these dryland systems, N management for grain yield and grain protein concentration (GPC) is challenging due to climatic and year-to-year variation in production environments. However, current fertilizer guides make little distinction between locations and incorporate relatively little data from HRW production. Identifying adequate N management practices and scenarios suitable for HRW production will help producers reduce risk and enhance profits. This study investigates the effects of fertilizer N rate, N application timing, variety and location over six site-years in northeastern Oregon from 2007-2009. Whole plant tissue nitrogen (TN) concentration at Zadoks growth stage (GS) 30 and flag leaf nitrogen (FLN) were also evaluated as decision making tools for N management in this region. Three sites representing low and intermediate precipitation zones were chosen for this study. A site at Pendleton, Oregon represented an intermediate precipitation zone (420 mm), while sites at Lexington and Arlington, Oregon were in a low precipitation (250-300 mm) zone. Study sites were minimally responsive to N treatments in terms of yield. Spring N was less detrimental to yield than fall application when N was excessive at Lexington and Arlington. Grain protein concentration response to fertilizer N was significant and varied by site-year. Some site-years proved favorable for efficient production of high GPC HRW wheat, whereas acceptable GPC was very difficult to achieve in others, underscoring the difficulty of consistently producing high GPC HRW wheat in these regions. Fertilizer N use efficiency was 18-39% at Pendleton, but generally less than 20% at Lexington and Arlington, dropping to zero in some circumstances. At all sites the soil N pool was used more efficiently than fertilizer N, indicating that HRW production is best suited where only minimal fertilizer N is required to complement crop N requirements. Spring N application improved GPC one year at Pendleton following above average late spring rainfall, and may therefore be a useful N management strategy in that environment. In contrast, spring N had a neutral or negative impact on GPC at Lexington and Arlington. Overall, current recommendations did not adequately describe N requirements observed in this study. However, requirements for achieving target GPC were generally lower and more stable at Pendleton, indicating that this and similar environments may be more suitable for HRW production than low yield, high stress environments such as Lexington and Arlington. Varieties showed similar response to N treatments regardless of site. Grain yield of HRW varieties were generally competitive with the soft white winter (SWW) variety 'Stephens'. Among tested HRW varieties, 'Norwest 553' expressed the best combination of yield and GPC performance. The relationship of tissue N (TN) concentration at Zadoks growth stage 30 to GPC was stable across site-years. A critical TN level of 41 g kg-1 corresponded to 126 g kg-1 GPC. This level could be used to indicate when additional N is required to achieve desired GPC, but it remains uncertain how useful this test would be at high stress, low rainfall sites considering the poor response to spring N at Lexington and Arlington. Flag leaf N also showed promise for predicting GPC, but additional research is necessary to clarify this relationship.
Download or read book Optimizing Nitrogen Fertilizer Response by Winter Wheat and Rye written by D. B. Fowler and published by . This book was released on 1989* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of In season Wheat Nutrient Uptake Changes and Nitrogen Management for Grain and Dual Purpose Winter Wheat written by Tyler R. Gardner and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An effective nutrient management plan is essential for optimum wheat (Triticum aestivum) yields. The objectives of the first study were to: i.) evaluate changes in concentration of nitrogen (N), phosphorus (P), potassium (K), sulfur (S), copper (Cu), manganese (Mn), and zinc (Zn), within separate plant parts, throughout the growing season, ii.) evaluate the uptake pattern and redistribution of each of these nutrients within the plant throughout the season, and iii.) evaluate the impact of micronutrient and S fertilization on concentration and uptake of nutrients and the potential use of fertilization for biofortification. Three locations were established and sampled every 7 to 10 days during the spring. Samples were divided into leaf, stem, head, spike and grain fractions and analyzed for nutrient concentration. Concentration levels tended to decrease throughout the season in non-grain plant fractions and stay relatively constant in the grain. Harvest grain concentration of Zn was significantly higher with micronutrient fertilization at all locations, suggesting the possibility of Zn biofortification through fertilization. S, Cu, and Zn showed nutrient accumulation increases in all plant fractions until the time period around anthesis (Feekes 10.5.1), at which point leaf and stem fractions decreased in total accumulation while nutrients were remobilized to the grain. N, P, K and Mn showed a similar trend although timing of remobilization varied between locations and treatments. The objectives of the second study were to i.) evaluate the interaction of wheat grazing management and soil and fertilizer N requirements with emphasis on dual purpose wheat, ii.) assess the use of NDVI sensors for N management and forage quantity assessment in wheat grazing systems, and iii.) evaluate forage quality and quantity interactions with N management. Three locations were established and fertilized with N application rates of 0, 34, 67, and 101 kg ha−1 in the fall, followed by simulated grazing. Spring topdress applications were made at rates of 0 and 90 kg ha−1, or a sensor based rate. The impact of grazing on grain production varied by location. NDVI readings correlated with biomass at two of three locations and N recommendations using NDVI sensors resulted in significantly lower N rates and similar yield results to high N application rates. Forage dry matter and N concentration increased with higher N rates.
