Author: Abolfazl Nasseri Publisher: LAP Lambert Academic Publishing ISBN: 9783846558850 Category : Languages : en Pages : 60
Book Description
The north of Iran is one of the main regions for agricultural production but the occurred precipitation is insufficient to meet wheat requirement. Consequently, supplemental irrigation is necessary for obtaining potential yield of wheat in rainfed areas. In addition, nitrogen fertilization can improve water use efficiency in such areas. Therefore, supplemental irrigation and nitrogen fertilization effects on production of winter wheat under rainfed climate condition were investigated in this book. Soil and water researchers, engineers and students can use findings of this study.
Author: J.J. Groot Publisher: Springer Science & Business Media ISBN: 9401134340 Category : Nature Languages : en Pages : 244
Book Description
In the Netherlands the Institute for Soil Fertility Research plays a major role in soil biological, soil physical and plant nutritional research on the availability of nitrogen to crops. Main subjects of research are nitrogen turnover in the crop-soil ecosystem through biological transformations, nitrogen transport through the soil and nitrogen losses by leaching, denitrification and volatilization, and nitrogen use efficiency of various crops and cropping systems. The current knowledge in the different fields of research is integrated in simulation models. Simulation models not only make it possible to summarize and structure knowledge, but also, after verification, to extra- late the knowledge to situations different from the situations that have actually been studied. Such research is also carried out in other European and non-European countries. To compare the various simulation models currently in use, a workshop was organized by the Institute for Soil Fertility Research on 5-6 June 1990 on the occasion of its centennial. The title of the workshop was 'Nitrogen turnover in the soil-crop ::cosystem: modelling of biological transformations, transport of nitrogen and nitrogen use efficiency'. The 40 Jarticipants, who came from Canada and various European countries, were requested to run their model with data Jrovided by the Institute prior to the workshop. Data from 18 cases were made available to the participants: three ocations, three treatments, and two seasons.
Author: Matthew Aaron Bruce Publisher: ISBN: Category : Languages : en Pages : 168
Book Description
The high spatial variability observed in the North Italian fields presents the potential for employing variable rate application (VRA) of fertilizer during durum wheat cultivation. The first objective of this experiment was utilize proximal and remote sensors to calculate vegetation indices (VI) and indicate the N uptake dynamic of the durum wheat (Triticum durum Desf. var. Biensur). Additionally, the identified correlations between N uptake and normalized difference vegetation index (NDVI) from a Trimble Green Seeker device were assessed against data collected from previous years (2011, 2012, and 2013) to produce a significant regression model. The second objective was to conduct a VRA experiment using proximal sensors and a real-time crop model with medium weather forecasts to predict crop nitrogen uptake and improve nitrogen fertilization of the wheat. Post-harvest evaluations showed marginal gains in yield quantity and a lower coefficient of variation of the wheat grain in the VRA zones.
Author: Liwang Ma Publisher: CRC Press ISBN: 1000687430 Category : Mathematics Languages : en Pages : 286
Book Description
Discusses New Advancements to Improve Existing Simulations of Plant NitrogenWritten by research pioneers and leading scientists in the area of agricultural systems, Quantifying and Understanding Plant Nitrogen Uptake for Systems Modeling comprehensively covers plant N uptake in agricultural system models, especially for building soil-plant system m
Author: Afshin Soltani Publisher: CABI ISBN: 9781845939717 Category : Crop yields Languages : en Pages : 322
Book Description
Model studies focus experimental investigations to improve our understanding and performance of systems. Concentrating on crop modelling, this book provides an introduction to the concepts of crop development, growth, and yield, with step-by-step outlines to each topic, suggested exercises and simple equations. A valuable text for students and researchers of crop development alike, this book is written in five parts that allow the reader to develop a solid foundation and coverage of production models including water- and nitrogen-limited systems.
Author: M. Ataman Aksoy And John C. Beghin Publisher: Manas Publications ISBN: 9788170492528 Category : International economic relations Languages : en Pages : 356
Book Description
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 )
Author: Weixing Cao Publisher: Springer Science & Business Media ISBN: 3642011322 Category : Technology & Engineering Languages : en Pages : 333
Book Description
"Crop Modeling and Decision Support" presents 36 papers selected from the International Symposium on Crop Modeling and Decision Support (ISCMDS-2008), held at Nanjing of China from 19th to 22nd in April, 2008. Many of these papers show the recent advances in modeling crop and soil processes, crop productivity, plant architecture and climate change; the rests describe the developments in model-based decision support systems (DSS), model applications, and integration of crop models with other information technologies. The book is intended for researchers, teachers, engineers, and graduate students on crop modeling and decision support. Dr. Weixing Cao is a professor at Nanjing Agricultural University, China.
Author: Abolfazl Nasseri
Author: Beatriz Avalos Sartorio
Author: J.J. Groot
Author: Matthew Aaron Bruce
Author: Liwang Ma
Author: Afshin Soltani
Author: H. van Keulen
Author: M. Ataman Aksoy And John C. Beghin
Author: H. J. Bos
Author: Weixing Cao