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| Author | : Mikko Sillanpää |
| Publisher | : Food & Agriculture Org. |
| Total Pages | : 466 |
| Release | : 1982 |
| Genre | : Science |
| ISBN | : 9789251011935 |
| Author | : Brian J. Alloway |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 370 |
| Release | : 2008-02-01 |
| Genre | : Technology & Engineering |
| ISBN | : 1402068603 |
A deficiency of one or more of the eight plant micronutrients (boron, chlorine, copper, iron, manganese, molybdenum, nickel and zinc) will adversely affect both the yield and quality of crops. Micronutrient deficiencies in crops occur in many parts of the world, at various scales (from one to millions of hectares), but differences in soil conditions, climate, crop genotypes and management, result in marked variations in their occurrence. The causes, effects and alleviation of micronutrient deficiencies in crops in: Australia, India, China, Turkey, the Near East, Africa, Europe, South America and the United States of America, are covered, and these are representative of most of the different conditions under which crops are grown anywhere in the world. Links between low contents of iodine, iron and zinc (human micronutrients) in staple grains and the incidence of human health problems are discussed, together with the ways in which the micronutrient content of food crops can be increased and their bioavailability to humans improved. Detailed treatment of topics, such as: soil types associated with deficiencies, soil testing and plant analysis, field experiments, innovative treatments, micronutrients in the subsoil, nutrient interactions, effects of changing cropping systems, micronutrient budgets and hidden deficiencies in various chapters provides depth to the broad coverage of the book. This book provides a valuable guide to the requirements of crops for plant micronutrients and the causes, occurrence and treatment of deficiencies. It is essential reading for many agronomy, plant nutrition and agricultural extension professionals.
| Author | : Foods and Agriculture Organization of the United Nations |
| Publisher | : |
| Total Pages | : 444 |
| Release | : 1982 |
| Genre | : |
| ISBN | : |
Soil and plant data, methodology and interpretation. Collection of original plant and soil samples. Indicator plants. Anlytical methods. Expression ofanalytical data. Soils. Plants. Regression graphs. General properties of soils and their mutual relations. Macronutrients. General aspects. Comparison of the two original indicator plants. Comparison of macronutrients status in different countries. Macronutrients contents of plants an soils in relations to four soil characteristics. Plant analyisis versus soil analysis. Molybdenum. Boron. Cooper. Iron. Manganese. Zinc. Nutrient status by countries. European and oceania. Latin America. Fart East. Near east. Africa.
| Author | : John J. Mortvedt |
| Publisher | : |
| Total Pages | : 794 |
| Release | : 1991 |
| Genre | : Science |
| ISBN | : |
Geochemistry of micronutrients; geographic distribution of trace element problems; micronutrient adsorption-desorption reactions in soils; inorganic equilibria affecting micronutrients in soils; Chemical forms of micronutrients in soils; organic matter-micronutrients reactions in soil; reactions of metal chelates in soils and nutrient solutions; mechanisms of micronutrient uptake and translocation in plants; function of micronutrients in plants; micronutrients and desease resistance na tolerance in plants; environmental and soil factors affecting micronutrient deficiencies and toxicities; micronutrient soil tests; plant tissue analysis in micronutrients; micronutrient fertilizer technology; fertilizer applications for correcting micronutrient deficiencies; trace elements in animal nutrition; trace elements in human nutrition; beneficial elements, funcional nutrients, and possible new essential elements.
| Author | : J. Hagin |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 197 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3642683274 |
Much has been learned about the proper and judicious use of fertilizers. Fertilizer application by farmers has grown from an art to a science. As food producers have strived to increase crop yields by overcoming nutrient deficiencies the use of fertil izers has increased dramatically. This has created a large chemical industry capable of supplying the needed plant food elements. A more complete understanding of soil chemistry and plant nutrition has led to greater fertilizer use with improved fertilization methods and crop cultural practices. Improved fertilizer technology has led to the production of more efficient forms of fertilizer. The modem fertilizer industry and with it fertilization practices began in the humid countries of the world. The use of fertilizers in arid and semiarid regions was later in development, although agriculture had its beginning in semiarid and arid regions. The development offertilizer use is parallel to industrial development in various areas of the world.
| Author | : Paul L.G. Vlek |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 264 |
| Release | : 2012-12-06 |
| Genre | : Nature |
| ISBN | : 9400950551 |
The mission of the International Fertilizer Development Center is to increase food production through the improvement of fertilizers and fertilizer practices for the developing countries with special emphasis on tropical and subtropical agriculture. The principal aim is to ensure that fertilizer technology is not a limiting factor to food production in those regions. Although the full extent to which deficiency of micronutrients hampers food production is yet un known, there is ample evidence that problem areas exist and more will be identified as crop production is intensified and marginal lands are exploited. Therefore, it seems fully appropriate at this time that IFDC, as an international organization, take a leadership role in developing micronutrient fertilizer technology appropriate for the tropics and subtropics. The gravity of micronutrient deficiency as a limiting factor to crop pro duction varies from crop to crop and from soil to soil. The effects may range from slight yield reductions to complete crop failure. While the economic impact of omitting micronutrients in seriously affected areas (e.g., Zn in Brazilian Cerrado) is convincing, it is difficult to estimate the yearly loss in crop production due to unsuspected micronutrient deficiency. Active soil and crop testing programs in regions with advanced agricultural systems are aimed at recognizing micronutrients as a limiting plant nutrient in time to allow corrective measures and prevent yield loss. Successful micronutrient monitoring systems are generally limited to developed economies or to developing economies producing export cash crops.
| Author | : Theocharis Chatzistathis |
| Publisher | : Bentham Science Publishers |
| Total Pages | : 212 |
| Release | : 2014-10-22 |
| Genre | : Technology & Engineering |
| ISBN | : 1608059340 |
Micronutrient Deficiency in Soils and Plants highlights the problems caused by micronutrient deficiencies in vegetative production. This eBook emphasizes on the necessary requirements for plant growth micronutrients, the vital deficiency symptoms of micronutrients and their crucial role in plant metabolism. The scope of this eBook covers a range of topics including micronutrient deficiency, the availability of micronutrient in soils, plant metabolism and micronutrient solubility. The contents of this eBook include chapters on micronutrient solubility and availability in soils, the role of micronutrients in plant metabolism and growth and diagnostic tools to assess deficiencies of iron, zinc, copper and other micro-nutrients. Micronutrient Deficiency in Soils and Plants is a valuable resource for MSc and PhD students, academic personnel and researchers seeking updated and critically important information on major nutritional problems in agricultural soils and crops.
| Author | : B. Ulrich |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 235 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 3642744427 |
Processes of acidification or alkalization of soils are treated, taking the qualitative changes in soil chemistry into consideration. Following a theoretical background of ecosystem proton budgets, the application for assessing external and internal acid loads are demonstrated. The chemistry of organic matter and the oxides of aluminum, iron, and manganese are treated in the context of being sources and sinks for acid loads in soils. Special attention is payed to the assessment of solubility and reaction kinetics of aluminous minerals. The formation of toxic elements in soil solution resulting from the solubilization of inorganic oxides as well as aspects of changes in the nutrient status of soils, changes of fertility and processes leading to a transfer of acidity from soils to surface are discussed.
| Author | : Kodoth Prabhakaran Nair |
| Publisher | : Springer Nature |
| Total Pages | : 94 |
| Release | : 2021-08-19 |
| Genre | : Technology & Engineering |
| ISBN | : 3030768171 |
This book focusses on the thermodynamics of soil nutrient bioavailability, and in particular the most important plant nutrients such as, phosphorus and potassium, among major nutrients, and zinc among micronutrients. It proposes a paradigm shift in the approach to global soil testing procedures. Historically, soil testing has been used to quantify availability of essential plant nutrients to field-grown crops. However, contemporary soil tests are based on philosophies and procedures developed several decades ago, without significant changes in their general approach. For a soil test to be accurate, one needs to clearly understand the physico-chemico-physiological processes at the soil-root interface and, an understanding of soils and plant root systems as polycationic systems is essential. It is this knowledge that leads to sound prescriptive soil nutrient management inasmuch as soil nutrient bioavailability vis-à-vis fertilizer application is concerned, because, of all the factors which govern sustainability in crop production, the nutrient factor is the most important, yet, it is also least resilient to management. This book provides a clear scientific basis of the thermodynamics of soil nutrient bio availability, which routine soil testing does not provide
| Author | : Abdul Rashid |
| Publisher | : CRC Press |
| Total Pages | : 417 |
| Release | : 2022-09-13 |
| Genre | : Science |
| ISBN | : 1000636070 |
Micronutrient research has been an important component of the soil fertility and plant nutrition program in Pakistan since the identification of zinc deficiency in rice in 1969. Since then, considerable progress has been made on diagnosis and management of micronutrient nutrition problems in crops. However, now there is growing R&D evidence that micronutrient malnutrition in humans could be addressed through enriching staple food grains with micronutrients. This book presents the latest R&D information on micronutrient problems in crop plants/cropping systems and their corrective measures. The current status, the constraints, and economic benefits of using micronutrient fertilizers for optimizing crop productivity and soil resource sustainability are discussed along with estimating future potential requirement of micronutrient fertilizers to optimize crop productivity, produce quality, and soil resource sustainability. Wide-scale preventable micronutrient deficiencies in human populations originate from micronutrient-deficient soils over which staple cereals and other food crops are grown. This book summarizes R&D information on fertilizer use-based micronutrient biofortification in staple food grains to address "hidden hunger" in human populations. The book also presents the best management practices by which micronutrient deficiencies could be corrected in crop plants in a farmer-friendly manner. Features Reviews the micronutrients R&D carried out in Pakistan over the past five decades Focuses on soil–plant analysis techniques for effective prognosis and diagnosis of micronutrient disorders Presents spatial variability maps of micronutrient deficiencies in agricultural soils and crops Provides value–cost ratios of using micronutrient fertilizers for major crops Works out current use level of micronutrient fertilizers and their potential future requirements in the country Discusses agronomic biofortification approach for enriching crop-based food with micronutrients to address "hidden hunger" Presents a compelling case for enhanced use of the deficient micronutrient fertilizers to optimize crop productivity, farmer income, and national economy Presents micronutrient fertilizer use recommendations for salient crops and discusses fertilizer use for micronutrients in the context of 4R nutrient stewardship Recommends future R&D needed for optimizing micronutrient nutrition of crops
