Author: Publisher:
ISBN:
Category : Agriculture
Languages : es
Pages : 494
Book Description
Turrialba
Author: Manual técnico para la interpretación de análisis de suelos y fertilización de cultivos
Author: Peña Vanegas, Ricardo AlexanderPublisher: Universidad de la Salle
ISBN: 9585148218
Category : Technology & Engineering
Languages : es
Pages : 60
Book Description
El país está enfrentado un tema tan crítico como la apertura económica -tratados recién firmados como el TLC con Estados Unidos- obligan a los gremios del sector productivo a ser más competitivos si quieren continuar en el mercado. Uno de los elementos para mejorar este aspecto es la eficiencia en el uso de los recursos (fertilizantes, riegos, manejo sostenible del medio ambiente, etc.). La toma de decisiones es un paso difícil en cualquier empresa. En la empresa agropecuaria intervienen muchos elementos, componentes y variables que es necesario conocer a la hora de decidir. Como el momento de las decisiones y los resultados están alejados en el tiempo, los problemas se manifiestan cuando suele ser tarde para resolverlos. Así, para tomar buenas decisiones es fundamental una correcta información previa. Un análisis equivocado lleva siempre a un mal resultado; cuando los márgenes de ganancia de la actividad agropecuaria se reducen, el costo del error puede ser crítico. Las buenas decisiones solo pueden ser resultado de un correcto análisis de las variables y esto solo puede hacerse con buena información.
Tropical Peatland Ecosystems
Author: Mitsuru OsakiPublisher: Springer
ISBN: 4431556818
Category : Science
Languages : en
Pages : 633
Book Description
This book is an excellent resource for scientists, political decision makers, and students interested in the impact of peatlands on climate change and ecosystem function, containing a plethora of recent research results such as monitoring-sensing-modeling for carbon–water flux/storage, biodiversity and peatland management in tropical regions. It is estimated that more than 23 million hectares (62 %) of the total global tropical peatland area are located in Southeast Asia, in lowland or coastal areas of East Sumatra, Kalimantan, West Papua, Papua New Guinea, Brunei, Peninsular Malaysia, Sabah, Sarawak and Southeast Thailand. Tropical peatland has a vital carbon–water storage function and is host to a huge diversity of plant and animal species. Peatland ecosystems are extremely vulnerable to climate change and the impacts of human activities such as logging, drainage and conversion to agricultural land. In Southeast Asia, severe episodic droughts associated with the El Niño-Southern Oscillation, in combination with over-drainage, forest degradation, and land-use changes, have caused widespread peatland fires and microbial peat oxidation. Indonesia's 20 Mha peatland area is estimated to include about 45–55 GtC of carbon stocks. As a result of land use and development, Indonesia is the third largest emitter of greenhouse gases (2–3 Gtons carbon dioxide equivalent per year), 80 % of which is due to deforestation and peatland loss. Thus, tropical peatlands are key ecosystems in terms of the carbon–water cycle and climate change.
The Herbarium Handbook
Author: Diane M. BridsonPublisher: Royal Botanic Gardens Kew
ISBN:
Category : Gardening
Languages : en
Pages : 356
Book Description
"Contains chapters on the conservation of herbarium sheets and on the collection and curation of the larger algae. The chapter on computers has been completely rewritten and much enlarged, as have those on pests and treatments, larger fungi and economic botany. The sections on liquid preservatives and on pesticides have been revised to take into account new health and safety regulations. An essential reference work for herbarium managers and technicians and for all those who are involved with the making and maintenance of herbarium collections." --NHBS Environment Bookstore.
Transport in Plants I
Author: M.H. ZimmermannPublisher: Springer Science & Business Media
ISBN: 3642661610
Category : Science
Languages : en
Pages : 548
Book Description
When WILHELM RUHLAND developed his plan for an Encyclopedia of Plant Physiol ogy more than three decades ago, biology could still be conveniently subdivided into classical areas. Even within plant physiology, subdivisions were not too difficult to make, and general principles could be covered sufficiently in the two introductory volumes of the Encyclopedia on the physical and chemical basis of cell biology. But the situation changed rapidly even during the 12-year publication period of the Encyclopedia (1955-1967). The new molecular direction of genetics and structural research on biopolymers had an integrating effect on all other biological fields, including plant physiology, and it became increasingly difficult to keep previously distinct areas separated. RUHLAND'S overall plan included 18 volumes and about 22,000 pages. It covered the entire field of plant physiology, in most cases from the very beginning. But, as each volume appeared, it was clear that its content would soon be outdated.
Host Bibliographic Record for Boundwith Item Barcode 30112100650693 and Others
Author: Bioremediation and Biotechnology
Author: Khalid Rehman HakeemPublisher: Springer Nature
ISBN: 3030356914
Category : Science
Languages : en
Pages : 334
Book Description
Toxic substances threatens aquatic and terrestrial ecosystems and ultimately human health. The book is a thoughtful effort in bringing forth the role of biotechnology for bioremediation and restoration of the ecosystems degraded by toxic and heavy metal pollution. The introductory chapters of the book deal with the understanding of the issues concerned with the pollution caused by toxic elements and heavy metals and their impacts on the different ecosystems followed by the techniques involved in monitoring of the pollution. These techniques include use of bio-indicators as well as modern techniques for the assessment and monitoring of toxicants in the environment. Detailed chapters discussing the role of microbial biota, aquatic plants, terrestrial plants to enhance the accumulation efficiency of these toxic and heavy metals are followed by remediation techniques involving myco-remediation, bio-pesticides, bio-fertilizers, phyto-remediation and rhizo-filtration. A sizable portion of the book has been dedicated to the advanced bio-remediation techniques which are finding their way from the laboratory to the field for revival of the degraded ecosystems. These involve bio-films, micro-algae, genetically modified plants and filter feeders. Furthermore, the book is a detailed comprehensive account for the treatment technologies from unsustainable to sustainable. We believe academicians, researchers and students will find this book informative as a complete reference for biotechnological intervention for sustainable treatment of pollution.
The Soils of Argentina
Author: Gerardo RubioPublisher: Springer
ISBN: 3319768530
Category : Nature
Languages : en
Pages : 268
Book Description
This is the first comprehensive book on Argentinian pedology. It discusses the main soil types of Argentina, their geographical distribution, classification, functions, agricultural use, ecological aspects, and the threats to which they have been subjected during centuries of intensive and extensive management. The description of the soils is accompanied by a complete set of data, pictures and maps, including benchmark profiles and an overview of the country's agricultural production. It also deals with future scenarios of the relationships between soil science and other disciplines and the main challenges that soil science will face in the future. Further, the book explores aspects of the main soil forming factors, such as climate, vegetation, geology and geomorphology, making use of new, unpublished data and elaborations, and presents a history of pedological research in Argentina.
The Avocado
Author: Bruce A. SchafferPublisher: CABI
ISBN: 1845937015
Category : Nature
Languages : en
Pages : 604
Book Description
This book is comprised of 15 chapters covering principles and basic understanding in avocado science, technology, best management practices and postharvest aspects. It is aimed at avocado researchers, libraries, teachers and academics, students, advisers, cutting edge growers and industry support personnel. Topics discussed include the history, distribution, uses, taxonomy, botany, genetics, breeding, ecology, reproductive biology, ecophysiology, cultivars and rootstocks, propagation, biotechnology, irrigation and mineral nutrition, crop management, foliar, fruit and soil-borne diseases, insect and mite pests and harvesting, packing, postharvest technology, transport and processing.
Neglected Crops
Author: J. Esteban Hernández BermejoPublisher: Food & Agriculture Org.
ISBN: 9789251032176
Category : Business & Economics
Languages : en
Pages : 372
Book Description
About neglected crops of the American continent. Published in collaboration with the Botanical Garden of Cord�ba (Spain) as part of the Etnobot�nica92 Programme (Andalusia, 1992)