Download or read book Roots and Nitrogen in Cropping Systems of the Semi Arid Tropics written by and published by . This book was released on 1994 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roots written by Jun J. Abe and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The root is the organ that functions as the interface between the plant and the earth environment. Many human management practices involving crops, forests and natural vegetation also affect plant growth through the soil and roots. Understanding the morphology and function of roots from the cellular level to the level of the whole root system is required for both plant production and environmental protection. This book is at the forefront of plant root science (rhizology), catering to professional plant scientists and graduate students. It covers root development, stress physiology, ecology, and associations with microorganisms. The chapters are selected papers originally presented at the 6th Symposium of the International Society of Root Research, where plant biologists, ecologists, soil microbiologists, crop scientists, forestry scientists, and environmental scientists, among others, gathered to discuss current research results and to establish rhizology as a newly integrated research area.
Download or read book Nitrogen Fixation in Tropical Cropping Systems written by Ken E. Giller and published by CABI. This book was released on 2001-01-01 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this book, first published in 1991 and intended for students and researchers, contains revised and updated material on the theory and practice of nitrogen fixation in tropical cropping systems. There are 15 chapters in 3 parts. Part I, Introduction, contains 5 chapters on tropical environments (climate, soils and cropping systems), nitrogen fixing organisms, the process of nitrogen fixation, assessment of the role of nitrogen fixation, and cycling of nitrogen in tropical cropping systems. Part II, Tropical crops and cropping systems, comprises 7 chapters on freeliving, root-associated and endophytic nitrogen fixing bacteria of cereal crops and grasses, cyanobacteria and Azolla as green manure for wetland rice, grain legumes, legumes as green manures and cover crops, forage legumes, understorey legumes and shade trees in plantation crops, and nitrogen fixing trees in agroforestry. Part III, optimizing nitrogen fixation, includes 3 chapters on environmental constraints, approaches to enhancement, and future impacts on nitrogen fixation in tropical agriculture. A list of common names and subject index are included.
Download or read book Cropping Systems In The Tropics Principles And Management written by Sp Palaniappan and published by New Age International. This book was released on 2006 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land And Soil Are Non-Renewable Natural Resources. The Nature Has Taken Thousands Of Years To Create An Inch Of Fertile Soil. Mismanagement Of This Precious Resource Is A Sin Against Nature And Will Play Havoc With The Fortunes Of The Country. Many Parts Of The Country Have Already Come To The Brink Of Devastation Through Injudicious Usages, Over Exploitation Of Natural Resources Resulting In Unsustainable Productivity Of Crops.Modern Concept Of Cropping System Is Based On The Principle Of Effective Utilization Of Soil Water, Nutrients And Light For Sustainable Crop Productivity. This Book Gives The Basic Principles And Broadly Accepted Definitions Terms Frequently Used In The Literature. A Short-Review Of The Cropping Systems Work Done In The Tropics, Particularly In India Is Presented.In This Revised Edition, Contents Of All The Chapters Have Been Revised To Give Orientation Towards Management Of Sustainable Crop Production Systems. A New Chapter On Farming System Is Also Added In Tune With The Latest Trends. Information Available On Perennial Crop-Based Cropping Systems, For Example High Density Multi Species Cropping Systems Involving Coconut And Arecanut Is Updated. The Various Management Aspects Of Sustainable Cropping Systems Are Discussed And The Research Methodology That Could Be Adopted Is Elucidated. Possible Future Lines Of Work Are Given In The Final Chapter.This Book Will Prove To Be Of Immense Value Not Only To The Research Workers But Also To The Teachers And Students And Above All Farmers And Individuals Who Are Desirous Of Improving Sustainable Crop Production Systems.
Download or read book Plant Roots written by Peter J. Gregory and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The root system is a vital part of the plant and therefore understanding roots and their functioning is key to agricultural, plant and soil scientists. In Plant Roots Professor Peter Gregory brings together recent developments in techniques and an improved understanding of plant and soil interactions to present a comprehensive look at this important relationship, covering: Root response to, and modification of, soils Genetic control of roots’ responses to the environment Use of modern techniques in imaging, molecular biology and analytical chemistry Practical exploitation of root characters This book will be a vital tool for plant, crop, soil and agricultural scientists, plant physiologists, environmental scientists, ecologists and hydrologists. It will be a valuable addition to libraries in universities, agricultural colleges and research establishments where these subjects are studied and taught.
Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by Cambridge University Press. This book was released on 2019-01-10 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Download or read book Agroecosystems of South India written by K. R. Krishna and published by Universal-Publishers. This book was released on 2010 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroecosystems of South India is a unique treatise that deals with the relevance of natural resources, genetic stocks, fertilizers, and agronomic practices on the productivity of agroecoregions. Within the context of this book, an agroecosystem has been defined as a conglomerate of small cropping zones, which may be mono-cropping expanses or intercrops that occur in various geographic regions of South India. South India abounds with several such agroecosystems that encompass field crops, vegetables, cash crops, plantations, and forest species. However, the main emphasis within this volume is restricted to agroecosystems that include major cereals, legumes, and oil seed crops. There are 10 chapters in this volume. The first, on historical aspects, traces important events related to domestication, introduction of crop species, agricultural implements, development of soil fertility and crop husbandry procedures. An introductory chapter on Agroecosystems delineates various agroecoregions of South India. Their classification based on physiography, soils, and climatic parameters have been dealt with in great detail. Descriptions on natural resources such as soils and their fertility conditions; water resources; climatic conditions including precipitation patterns; and crops and their genotypes are available in chapter 2. The impact of soil fertility and nutrient dynamics on ecosystematic functions and productivity of crops in an agroecosystem forms the central piece of discussions within chapters 3 to 9. Historical background, geographical settings, agroclimate, soils, cropping systems, and productivity trends have been provided for each cropping ecosystem. Recent advances and details on aspects of nutrient dynamics, such as soil nutrients, their availability, physico-chemical transformations, nutrient fluxes, inorganic fertilizer supply, organic manures, crop residue recycling, nutrient carry over and nutrient balances/imbalances form the core of each chapter. The impact of beneficial soil microbes such as Rhizobium, Plant Growth Promoting Rhizobacteria and Arbuscular Mycorrhizas, on nutrient dynamics in soil has also been discussed. More recent developments dealing with modeling nutrients in cropping ecosystems, computer based-simulations, precision farming and site-specific nutrient management have been emphasized. Forecasts on the impact of nutrient dynamics on the future course of agroecosystems are also available. Overall, this book is a scholarly edition that aims at providing an excellent exposition of recent developments within various agroecosystems of South India to a global audience. It highlights the importance of soil fertility and nutrient dynamics within agroecosystems to total food grain and fodder production in South India. It will be a useful book to researchers, professors, and students dealing with agriculture, environmental science, ecology, and plant science.
Download or read book Food Security in Nutrient Stressed Environments Exploiting Plants Genetic Capabilities written by J.J. Adu-Gyamfi and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultimate success in exploiting the genetic capabilities of plants to grow in nutrient-stressed environments of the semi-arid tropics (SAT) requires a holistic view of food systems to ensure that genetic selections for improved yields on nutrient-poor soils will actually be adopted by farmers. This book sets out to address the important issue of how physiological mechanisms of nutrient uptake can best be combined with genetic options to improve the adaptation of crops to low-nutrient availability, thereby enhancing productivity of nutrient poor soils in the semi-arid tropics. The book examines (i) the sustainability of breeding for low-nutrient environments from the viewpoint of three interrelated disciplines; physiology, breeding, and socio-economics, (ii) candidate mechanisms and physiological traits to enhance uptake and utilization efficiencies, (iii) genetic approaches for manipulation of crop plants to enhance root exudation and access nutrients in the rhizosphere, and (iv) field practices and farmers' preferences for crop varieties grown in low-nutrient environments. Finally, the role of modelling in improving nutrient efficiency in cropping systems, recommendations for future research needs and strategies were highlighted. Attended by 50 international participants, this book is the outcome of the workshop held at ICRISAT-India during 27-30 September 1999 to mark the culmination of the Government of Japan/ICRISAT Project.
Download or read book Multiple Cropping And Tropical Farming Systems written by Willem C. Beets and published by CRC Press. This book was released on 2019-03-06 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the uses of tropical farming systems in tropics of mixed, strip, relay, sequential and multistorey cropping. It discusses the aspects of the tropical farming systems including their history and agronomy and the plant inter-relationship within them.
Download or read book Root Genomics written by Antonio Costa de Oliveira and published by Springer Science & Business Media. This book was released on 2010-12-03 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the predicted increase of the human population and the subsequent need for larger food supplies, root health in crop plants could play a major role in providing sustainable highly productive crops that can cope with global climate changes. While the essentiality of roots and their relation to plant performance is broadly recognized, less is known about their role in plant growth and development. “Root Genomics” examines how various new genomic technologies are rapidly being applied to the study of roots, including high-throughput sequencing and genotyping, TILLING, transcription factor analysis, comparative genomics, gene discovery and transcriptional profiling, post-transcriptional events regulating microRNAs, proteome profiling and the use of molecular markers such as SSRs, DArTs, and SNPs for QTL analyses and the identification of superior genes/alleles. The book also covers topics such as the molecular breeding of crops in problematic soils and the responses of roots to a variety of stresses.
Download or read book Sustainable Dryland Cropping in Relation to Soil Productivity written by C. J. Pearson and published by Food & Agriculture Org.. This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances in Rice Research written by Mahmood-Ur- Rahman Ansari and published by BoD – Books on Demand. This book was released on 2021-03-03 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Recent Advances in Rice Research” is an interdisciplinary book dealing with diverse topics related to recent developments in rice research. The book discusses the latest research activities in the field of hybrid rice, various metabolites produced in rice and its biology, stress studies, and strategies to combat various biotic and abiotic stresses as well as rice economics, value addition, and product development. The book is written by an international team of researchers from all over the globe sharing their results in the field of rice research. I am hopeful that the scientific information available in this book will provide advanced knowledge for rice researchers, students, life scientists, and interested readers on some of the latest developments in rice research.
Download or read book Food Production written by Anna Aladjadjiyan and published by BoD – Books on Demand. This book was released on 2012-01-20 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to food production and the problems associated with the satisfaction of food needs in different parts of the world. The emerging food crisis calls for development of sustainable food production, and the quality and safety of the food produced should be guaranteed. The book contains thirteen chapters and is divided into two sections. The first section is related to social issues rising from food insufficiency in the third world countries, and is titled "Sustainable food production: Case studies". The case studies of semi-arid Africa, Caribbean and Jamaica, Burkina Faso, Nigeria, Pacific Islands, Mexico and Brazil are discussed. The second section, titled "Scientific Methods for Improving Food Quality and Safety", covers the methods for control and avoidance of food contaminants. Substitution of chemical treatment with physical, rapid analytical methods for control of contaminants, problems in animal husbandry related to diary production and hormones in food producing animals, approaches and tasks in maize and rice production are in the covered by 6 chapters in this section.
Download or read book Agricultural System Models in Field Research and Technology Transfer written by Lajpat R. Ahuja and published by CRC Press. This book was released on 2016-04-19 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most books covering the use of computer models in agricultural management systems target only one or two types of models. There are few texts available that cover the subject of systems modeling comprehensively and that deal with various approaches, applications, evaluations, and uses for technology transfer. Agricultural System Models in Field Res
Download or read book Crops of the Drier Regions of the Tropics written by David P. Gibbon and published by Longman Publishing Group. This book was released on 1985 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water and Nitrogen Management for Risk Mitigation in Semi arid Cropping Systems written by Walter T. Mupangwa and published by . This book was released on 2008 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Below ground Interactions in Tropical Agroecosystems written by Meine van Noordwijk and published by CABI. This book was released on 2004 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Below-grownd interactions are often seen as the 'dark side' of agroecosystems, especially when more than one crop is grown on the same piece of land at he same time. this book aims to review the amount of light he past decade of research has shed on this topic. It also aims to review ohw far we have come in unravelling the positive and negative aspects of these interactions and how, in dialogue with farmers, we can use the generic principles that are now emerging to look for sita-specifics solutions.
