Factors Affecting the Accumulation of Nitrate in Soil, Water, and Plants

Factors Affecting the Accumulation of Nitrate in Soil, Water, and Plants PDF Author: Frank Garfield Viets
Publisher:
ISBN:
Category : Nitrates
Languages : en
Pages : 74

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Factors Affecting the Accumulation of Nitrate in Soil, Water, and Plants

Factors Affecting the Accumulation of Nitrate in Soil, Water, and Plants PDF Author: Frank Garfield Viets
Publisher:
ISBN:
Category : Nitrates
Languages : en
Pages : 74

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Selenium

Selenium PDF Author: Victor R Preedy
Publisher: Royal Society of Chemistry
ISBN: 1782622217
Category : Medical
Languages : en
Pages : 667

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Book Description
Although toxic in large doses, selenium is an essential trace mineral in the animal diet and in some plants. It has a role in making antioxidant enzymes and a particular role in the functioning of the thyroid gland. This volume examines the chemical activity of selenium and its functional health effects eg towards cancers, in the heart and brain. It also covers other areas such as functional food enrichment, whole body metabolism, and the effects of selenium deficiency on health. Part of The Food and Nutritional Components in Focus series, this edited volume pools knowledge across scientific disciplines in a way that increases its applicability to a wide range of audiences. Victor Preedy’s own distinguished career in nutritional science has made him a prolific author of research articles and books in this area, and this project fills a gap in providing comprehensive synopses of food substances. Chemists, analytical scientists, forensic scientists, food scientists, as well as course lecturers will all benefit from this interdisciplinary title written by international experts in this area.

Plant Nutrition - Physiology and Applications

Plant Nutrition - Physiology and Applications PDF Author: M.L. Van Beusichem
Publisher: Springer Science & Business Media
ISBN: 9400905858
Category : Science
Languages : en
Pages : 759

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Book Description
Exactly 35 years after the first Colloquium was held, the Eleventh International Plant Nutrition Colloquium took place from 30 July to 4 August 1989 in Wageningen, The Netherlands. Although impressive progress has been made during the past decades in our understanding of the mechanisms of uptake, distribution and assimilation of nutrients in relation to crop yield and quality, there are still significant gaps in our insight into many fundamental aspects of plant mineral nutrition and related metabolic processes. In spite of improved knowledge of nutrient requirements of crops and improved fertilizer application strategies, the world population remains to be burdened with an enormous shortage of plant products for food, timber, fuel, shelter, and other purposes. The main challenge facing the plant nutrition research community is to at least alleviate the increasing world-wide need for applying scientific knowledge to practical problems in agriculture, horticulture, and forestry. It is therefore felt by many scientists that the Plant Nutrition Colloquia, which are intended to bring together scientists and to integrate knowledge and approaches acquired in plant physiology, biochemis try, soil science, agronomy and related disciplines, have indeed made a significant contribution to the advancement of our knowledge and understanding in this vital and interdisciplinary field of agrobiology. About 260 scientists from 40 nations attended the Colloquium in Wageningen.

Nitrogen in the Environment: Sources, Problems and Management

Nitrogen in the Environment: Sources, Problems and Management PDF Author: R.F. Follett
Publisher: Gulf Professional Publishing
ISBN: 0080537561
Category : Technology & Engineering
Languages : en
Pages : 539

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Book Description
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.

Sulphur in Plants

Sulphur in Plants PDF Author: Y.P. Abrol
Publisher: Springer Science & Business Media
ISBN: 9401702896
Category : Science
Languages : en
Pages : 424

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Book Description
Sulphur (S) plays a pivotal role in various plant growth and development processes being a constituent of sulphur-containing amino acids, cysteine and methionine, and other metabolites viz., glutathione and phytochelatins, co-factor of enzymes which contribute to stress repair and amelioration of heavy metal toxicity. Besides, a number of S-containing components are biologically active and, thus, a source for use as medicinal value. The basic global issue before the agricultural scientist and world community is to evolve cultivars and develop methodologies for efficient use of inputs to enhance agricultural productivity. This is particularly true of the developing countries which are going to see maximum rise in population with changing food demands and declining availability of land. Amongst the inputs, nutrients play a crucial role. The major requirement is for N, P and K followed by several micro-nutrients. In this context reports of world-wide S deficiency in the agricultural systems are relevant. The reasons are many. Broadly speaking reduction inS emission, use of S-free N, P and K fertilizers and higher biomass production contributed the maximum. Despite the need for sulphur as an essential plant nutrient and the substantial returns expected from its use, very little attention has been given to fill the gap between supply and demand of S.

Growing Lettuce in Greenhouses

Growing Lettuce in Greenhouses PDF Author: Ross Calvin Thompson
Publisher:
ISBN:
Category : Forcing (Plants)
Languages : en
Pages : 28

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Handbook of Plant Nutrition

Handbook of Plant Nutrition PDF Author: Allen V. Barker
Publisher: CRC Press
ISBN: 1420014870
Category : Science
Languages : en
Pages : 662

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Book Description
The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.

Duckweed Aquaculture

Duckweed Aquaculture PDF Author: Paul Skillicorn
Publisher: World Bank Publications
ISBN:
Category : Science
Languages : en
Pages : 92

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Nutritional Composition and Antioxidant Properties of Fruits and Vegetables

Nutritional Composition and Antioxidant Properties of Fruits and Vegetables PDF Author: Amit K. Jaiswal
Publisher: Academic Press
ISBN: 0128127813
Category : Technology & Engineering
Languages : en
Pages : 776

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Book Description
Nutritional Composition and Antioxidant Properties of Fruits and Vegetables provides an overview of the nutritional and anti-nutritional composition, antioxidant potential, and health benefits of a wide range of commonly consumed fruits and vegetables. The book presents a comprehensive overview on a variety of topics, including inflorescence, flowers and flower buds (broccoli, cauliflower, cabbage), bulb, stem and stalk (onion, celery, asparagus, celery), leaves (watercress, lettuce, spinach), fruit and seed (peppers, squash, tomato, eggplant, green beans), roots and tubers (red beet, carrots, radish), and fruits, such as citrus (orange, lemon, grapefruit), berries (blackberry, strawberry, lingonberry, bayberry, blueberry), melons (pumpkin, watermelon), and more. Each chapter, contributed by an international expert in the field, also discusses the factors influencing antioxidant content, such as genotype, environmental variation and agronomic conditions. - Contains detailed information on nutritional and anti-nutritional composition for commonly consumed fruits and vegetables - Presents recent epidemiological information on the health benefits of fresh produce - Provides in-depth information about the antioxidant properties of a range of fruits and vegetables

Diagnostic Procedures for Crop N Management

Diagnostic Procedures for Crop N Management PDF Author: G. Lemaire
Publisher: Inra-Quae
ISBN:
Category : Crops and nitrogen
Languages : en
Pages : 164

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Book Description