Download or read book Evaluation of Planting Technologies and Management in Wheat written by Ana Julia Carvalho Basilio de Azevedo and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Genotype by seeding rate interaction can play a critical role in wheat (Triticum aestivum L.) yield potential. The objectives of this study were to i) quantify wheat yield response and ii) early-season plant establishment related to the planting technology under diverse seeding rates and with contrasting varieties relative to their tillering ability. Four studies were established at two locations during two growing seasons (2015-16 and 2016-17) at Ashland Bottoms (dryland and conventional till in the first year and no-till in the second year) and at Topeka (irrigated and no-tillage for both years) field research stations (KS, US). Two winter wheat varieties were planted with two different planting systems (singulated and conventional drill) at four different seeding rates (45, 90, 135, and 180 kg ha−1). Early-season measurements consisted of stand counts, canopy coverage (estimated via imagery collection via small-unmanned aerial vehicle systems - sUAVS), determination of early-season gaps within the stand of plants, and spacing between plants. Early season measurements (emergence progression, stand count, and canopy coverage) and biomass did not present differences among treatments. At Ashland, across 2-yrs, single factors seeding rate and genotype significantly impacted yields. Seeding rate factor positively affected yields, ranging from 4.7 to 5.4 Mg ha−1 with seeding rates going from 45 to 135 kg ha−1, respectively. For the genotype factor, the variety WB Cedar (high-tillering) presented an overall yield of 605 kg ha−1 greater than WB 4458 (low-tillering). Across locations, the seeding system did not influence yields for both years of the study. At Topeka, the seeding system significantly influenced yields in 2017, with singulation outyielding the drill system, in 161 kg ha−1. Further research is needed at a farmer-scale testing more winter wheat varieties and focusing on lower seeding rates to better understand the potential benefits of the implementation of this new technology.
Download or read book Wheat production and grower practices in the Yaqui Valley Sonora Mexico written by Meisner, C.A. and published by CIMMYT. This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plot selection criteria; Questionnaires for grower information; Plot size and location determination; Plant density determination; Soil testing; Plant nitrogen analysis; Other plant nutrient analyses; Disease; Insects; Weeds; Agronomic score; Ground cover; Ground cover score; Plant biomass; Penetrometer; Soil samples for nematode analysis; Samplingof wheat roots for nematode analysis; Harvest; Economic analysis; Statistical analysis; Yaqui Valley environment; Weather; Soils; Water availability and quality; Crop rotations; Grower practices; Land preparation; Planting date; Seeding; Varietal selection; Irrigation practices; Fertilization; Plant nutrient status; Weed management; Insect and disease controls; Straw management; Harvest; Economic returns; Yield-limiting factors; Possible factors limiting yields: use of contrasts; Possible factors limiting yields: regression models.
Download or read book Wheat Improvement Management and Utilization written by Ruth Wanyera and published by BoD – Books on Demand. This book was released on 2017-05-24 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wheat Improvement, Management, and Utilization book covers some of the most recent research areas that touch on enhancement of wheat productivity. It is obvious that wheat is one of the major staple crops grown globally. This crop has widely been researched on considering that, for instance, it is afflicted by various abiotic and biotic stresses that limit its growth and productivity. Today?s goal of wheat improvement consistently is to develop varieties that are high yielding with good processing and technological qualities, well adapted and tolerant to prevailing biotic and abiotic stresses. Therefore, this is a valuable reference book on wheat improvement, agronomy, and end-use qualities, particularly for those who work in research organizations and higher academic institutions. Moreover, it provides an invaluable resource for readers interested in a quick review of trending topics in wheat.
Download or read book Analysis of Participatory Research Projects in the International Maize and Wheat Improvement Center written by Nina Kristiina Lilja and published by CIMMYT. This book was released on 2006 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alternative Futures for U S Agriculture written by United States. Department of Agriculture. Office of Planning and Evaluation and published by . This book was released on 1975 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cropping Systems for Sustainable Wheat Production written by Jennifer Laffan and published by NSW Agriculture. This book was released on 2022-12-19 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of Cropping Systems for Sustainable Wheat Production, attractively produced with 132 full colour images providing up-to-date information for producers or anyone interested in the industry. The importance of worker and environmental safety and hazard reduction is emphasised and a sample risk assessment template is included. There is a description of the precautions to take for the range of enterprise activities: from tractor work to handling and storing grain. The advantages of technology such as Global positioning by satellite (GPS) and Differential GPS (DGPS) and Real-Time Kinematic (RTK) for the broadacre enterprise are explained. GPS allows for “straight line” or tramline or controlled traffic farming (CTF) or the ability to geo-reference boundaries and points in a farm or paddock. DGPS is an even more accurate measurement of row spacing, as accurate as 10 cm and often used for CTF and RTK down to 2 cm and makes CTF easier to implement with inter-row sowing. GPS also has other advantages such as mapping the changes in yield throughout your paddock and so identifying areas where it is economic to apply more (or less) inputs such as ameliorants, seed, fertiliser or pesticides. The application of variable rate technology delivers fertiliser or herbicide in quantities as required by different sections of the paddock. This saves money and also protects the environment from unnecessarily heavy rates of product. This technology can also be used to gather paddock data using remote sensing technologies such as from satellites or UAVs (Drones). Sensitivity of imagery collected this way can help identify problems occurring before the human eye can see them and can direct the grower to issues before they become too advanced and impact on productivity. It can direct you to issues in a particular paddock that need your attention before they become too advanced and impact on productivity. Other technology described includes Green on brown weed sprays which use computers on sprayers to spray plants (weeds) on bare ground. It also includes the more sophisticated green on green technology where artificial intelligence fitted to cameras on sprayers allows herbicide application to specific weeds in a crop. Cameras scan the paddocks to recognise the weeds and then control the spraying in real time to spray only weeds and the dose required and not the whole paddock. This helps save money and protects the environment. Information from remote sensing devices locates the weed populations so that you know which paddocks to scan. The advantages and issues with minimum or no-till, controlled traffic farming (CTF) and stubble retention are also discussed.
Download or read book Emerging Technologies and Management of Crop Stress Tolerance written by Parvaiz Ahmad and published by Academic Press. This book was released on 2014-04-11 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Technologies and Management of Crop Stress Tolerance: Volume 1 - Biological Techniques presents the latest technologies used by scientists for improvement the crop production and explores the various roles of these technologies for the enhancement of crop productivity and inhibition of pathogenic bacteria that can cause disease. This resource provides a comprehensive review of how proteomics, genomics, transcriptomics, ionomics, and micromics are a pathway to improve plant stress tolerance to increase productivity and meet the agricultural needs of the growing human population. This valuable resource will help any scientist have a better understanding of environmental stresses to improve resource management within a world of limited resources. - Includes the most recent advances methods and applications of biotechnology to crop science - Discusses different techniques of genomics, proteomics, transcriptomics and nanotechnology - Promotes the prevention of potential diseases to inhibit bacteria postharvest quality of fruits and vegetable crops by advancing application and research - Presents a thorough account of research results and critical reviews
Download or read book Evaluation of Nitrogen Use Efficiency NUE in Wheat written by Bahaddin Abdullah Faraj and published by . This book was released on 2013 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fertilizers are a major input required for cereal crop production worldwide. The management of this resource is a significant challenge to most agricultural systems as it can have significant impacts on yield and the environment. The use of applied nitrogen fertilisers in cereals is poor, where only 30-40% is actually used by cereals and the remainder lost to the environment by surface runoff, soil denitrification and volatilization (Ehdaie et al., 2010; Butterbach-Bahl and Dannenmann 2011). Improving cereal nitrogen use efficiency (NUE) is imperative to achieve yield and quality with less direct N inputs. In this study, experiments were conducted in 2010 to evaluate the effect of N fertilizer application (0, 50, 100, 150 kg urea/ha) on the growth and yield of wheat varieties at specific locations across South Australia while a small pilot glasshouse study was conducted at the Waite Campus, Adelaide University. The field experiments were designed as a randomised split-plot with three replications for each wheat cultivar and N treatment. Plant response to N treatment was measured through estimates of plant height, leaf chlorophyll content (SPAD meter), plant spike number, grain yield, 1000 grain weight, shoot biomass weight, grain N % and final grain protein content, harvest index (HI) and NUE. Restrictions in space and large growing pots limited the controlled glasshouse study to a technical study. The results found little variability between the three field sites in Grain %N in response to increasing N provision. There was a trend of increasing grain %N at both Mintaro and Pinnaroo, which was broadly in evidence across the individual lines. Grain yield was highest at Mintaro and was double of that achieved at both Pinnaroo and Tuckey. Whereas, in the glasshouse experimental results show that there was a strong response in grain %N to increasing N provision when plants were grown over the spring/summer season but not during the autumn/winter. Nitrogen use efficiency (NUE) was found to be greater at low nitrogen treatment (N1) in all experiments and decreased roughly with increased N application. In general, the results indicated that wheat cultivars responded well to nitrogen application with the medium rate of application within experiments, while beyond this rate caused no significant improvements in plant growth and yield.
Download or read book IGrow Wheat written by David E. Clay and published by . This book was released on 2012 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Technologies and Management of Crop Stress Tolerance written by Parvaiz Ahmad and published by Academic Press. This book was released on 2014-05-02 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Technologies and Management of Crop Stress Tolerance: Volume II - A Sustainable Approach helps readers take technological measures to alleviate plant stress and improve crop production in various environmental conditions. This resource provides a comprehensive review of how technology can be implemented to improve plant stress tolerance to increase productivity and meet the agricultural needs of the growing human population. The book considers issues of deforestation, disease prevention, climate change and drought, water and land management, and more. It will help any scientist better understand environmental stresses to improve resource management within a world of limited resources. - Includes the most recent advances methods and applications of biotechnology to crop science - Promotes the prevention of potential diseases to inhibit bacteria postharvest quality of fruits and vegetable crops by advancing application and research - Presents a thorough account of research results and critical reviews
Download or read book Growth and Mineral Nutrition of Field Crops written by Nand Kumar Fageria and published by CRC Press. This book was released on 2010-10-19 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: By the year 2050, the world's population is expected to reach nine billion. To feed and sustain this projected population, world food production must increase by at least 50 percent on much of the same land that we farm today. To meet this staggering challenge, scientists must develop the technology required to achieve an "evergreen" revolution-one
Download or read book Precision Agriculture written by John V. Lake and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates new agricultural systems such as organic and green manuring, as well as integrated pest management practices, and looks at how they can improve farm productivity against the enhancements for the environment. Much of the information presented focuses on microinvestigation of the soil, and on the effects of soil variability within fields on yields and nutrient flows.
Download or read book Federal Evaluations written by and published by . This book was released on 1980 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains an inventory of evaluation reports produced by and for selected Federal agencies, including GAO evaluation reports that relate to the programs of those agencies
Download or read book Accounting for Water Use and Productivity written by David Molden and published by IWMI. This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a conceptual framework for water accounting and provides generic terminologies and procedures to describe the status of water resource use and consequences of water resources related actions. The framework applies to water resource use at three levels of analysis: a use level such as an irrigated field or household, a service level such as an irrigation or water supply system, and a water basin level that may include several uses. Water accounting terminology and performance indicators are developed and presented with examples at all the three levels. Concepts and terminologies presented are developed to be supportive in a number of activities including: identification of opportunities for water savings and increasing water productivity; developing a better understanding of present patterns of water use and impacts of interventions; improving communication among professionals and communication to non-water professionals; and improving the rationale for allocation of water among uses. It is expected that with further application, these water accounting concepts will evolve into a robust, supporting methodology for water basin analysis.
Download or read book Irrigated Wheat written by Howard M. Rawson and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2000 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat is one of the most important food sources in the developing world. Sustainable intensification of irrigated wheat requires an adequate and balanced use of inputs. This self-help publication aims to contribute to a rational use of inputs by pointing out the various things that can go wrong with wheat crops and also proposing some effective solutions for overcoming the problems.
Download or read book Save and Grow written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-06-22 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book offers a rich toolkit of relevant, adoptable ecosystem-based practices that can help the world's 500 million smallholder farm families achieve higher productivity, profitability and resource-use efficiency while enhancing natural capital.
Download or read book Advances in Nutrient Dynamics in Soil Plant System for Improving Nutrient Use Efficiency written by A K Biswas and published by New India Publishing Agency- Nipa. This book was released on 2023-01-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises 31 chapters on advances in soil-plant systems for improving nutrient use efficiency with four major themes viz. 1. Introduction and Fundamentals of Soil Plant Atmosphere Continuum and nutrient use efficiency 2. Soil physical, chemical, biological and agronomic management for improving NUE 3. Plant physiological, genetic & molecular biological basis for improving nutrient uptake & use efficiency 4. Climate change aspects related to soil and plant systems for improving NUE. Besides the book also include few chapters on analytical techniques and instrumentation for the study of nutrient use efficiency with respect to physico-chemical and biological parameters.
