Download or read book Fertilizer Use by Crop in Brazil written by Itália). FAO (Roma and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils and climate; The agricultural structure; The fertilizer sector; Organic fertilizers; Fertilizer consumption by crop; Nutrient balances; Prices and profitability of fertilizers; Fertilizer distribution.
Download or read book Fertilizer Use by Crop in Brazil written by Food and Agriculture Organization of the United Nations. Land and Plant Nutrition Management Service and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economics of Fertilizer Use in Brazil written by William C. Nelson and published by . This book was released on 1973 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilizer Use by Crop written by and published by Food & Agriculture Org.. This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the world's hunger and poverty occurs in rural areas. The use of fertilizers could improve agricultural productivity in these areas. However, many developing countries attach a low priority to the subsistence / smallholder sector, particularly in disadvantaged areas. This publication summarizes the information from 21 countries: the crops on which fertilizers are used, the social and structural context, appropriate fertilizer application rates and their profitability, arrangements for supplying fertilizers to farmers and for marketing their produce, credit facilities, and research.
Download or read book Fertilizer Use and Agricultural Development in Brazil written by William C. Nelson and published by . This book was released on 1973 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilizer Use by Crop in Brazil written by Food and Agriculture Organization of the United Nations and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brazil is the world’s largest producer of coffee, sugar cane and citrus and is the world’s second largest producer of soybeans. Agricultural production has increased more than threefold during the past 30 years and the use of mineral fertilizers has increased correspondingly. Multidisciplinary agricultural research has permitted a major agricultural development of the Cerrado region, once considered to be marginal for agriculture. Advanced production techniques are used to produce the major export crops. No-till systems are currently applied on almost 40 percent of the grain crop area. While yield levels of the major export crops are good, the average yields of food crops for domestic consumption are low. Most of the numerous small-scale, often subsistence, farmers use little or no fertilizers. Rural poverty is a major problem in some regions of Brazil and could be alleviated by improved agricultural productivity.
Download or read book The Demand for Fertilizer in Southern Brazil 1948 1971 written by Donald W. Larson and published by . This book was released on 1974 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Restrictions on Using More Fertilizer for Food Crops in Developing Countries Department of State and Other Federal Agencies written by United States. General Accounting Office and published by . This book was released on 1977 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brazilian Agriculture written by Luiz Gustavo Batista Ferreira and published by . This book was released on 2021-01-05 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservationist agriculture is responsible to appropriate physical, biological and chemical agricultural conditions for crops to express their genetic productive potential (ZACANARO; KAPPES, 2014).Until the 1950s, the production of Brazilian agriculture depended almost exclusively on the natural fertility of soils, which is mostly low due to the high acidity and the presence of toxic trivalent aluminum contents for the main crops. In addition to these problems, we also highlight the low availability of macronutrients (N, P, K, Ca, Mg and S), micronutrients such as Zn and Cu, low CEC and, P fixation in tropical regions, which makes it unavailable for cultures since P is adsorbed by electrostatic or covalent mechanisms (ALCARDE et al. 1991).The practices of soil acidity correction and fertilization contributed significantly to the improvement of soil fertility over the years (BERNARDI; MACHADO; SILVA, 2012).Another concept incorporated to the management of fertilization is the fertilization of crops systems which can be defined as a technological resource that aims to fertilize the production system as a whole, instead of fertilizing only a single crop (OLIVEIRA, 2010).Fertilization of crops systems consists of more intensively fertilizing more responsive crops such as corn, cotton, beans and tomatoes and using residual fertilization for less responsive crops, such as soybeans. Residual nutrients are considerable relevant (ALTMANN, 2012).Borin (2013) considers essential for the fertilization of systems, the results of soil analysis (available contents), as well as the nutrient credits left by previous crop residues, the productivity expectations for calculating nutrient extraction and exportation, the demands the nutrient efficiency of each crop, the efficiency of fertilizer use and the evolution of soil fertility.For Altmann (2010), in no-tillage system, nutrient losses are significantly lower when compared with conventional agriculture. It is possible to fertilize the production system in order to better exploit the most responsive crops, in addition, it is recommended to increase the fertilization for crops that have the highest responses to it and explore the residual effect of the soil.In no-tillage, crop rotation is used in which the cover crop precedes the main summer crop, the possibility of fertilizing the system and not only the main crop. Part of the fertilizer is applied pre-planting to the cover crop, which will be desiccated and, consequently, these nutrients will return to the main crop (EMBRAPA, 2003).Results obtained in Turvelândia (Goiás state, Brazil) indicated that the millet cultivated as a cover for cotton crop responded to potassium fertilization up to 60 kg.ha-1 K2O.This better use occurred when the fertilization of the previous crop was made in total area, and not located only in the planting furrow (EMBRAPA, 2003).In system fertilization, the residual effect of previous fertilizers on subsequent crops, the nutrient cycling credits is considered. The residual nutrient efficiency on plant yield depends mainly on some factors such as climatic conditions, soil type, nutrient adsorption and removal capacity (MATOCHA et al., 1970; MALAVOLTA et al., 1974; FASSBENDER, 1980).In successive cropping systems, when previous crops are fertilized, the residual effects, especially of phosphate fertilizers, are noticeable (SILVA; SILVA FILHO; ALVARENGA, 2001).Fertilizer recommendation is more flexible through integrated pre-planning, fertilizing the main crop with higher response potential, even in excess of the required quantities and minimizing or eliminating application to the next crop with lower fertilizer response (BORIN, 2013). Luiz Gustavo Batista Ferreira is Agronomist Engineer graduated at UEL - State University of Londrina and, also, Master of Science (IAPAR, Brazil). Printed in The United States of America. Higher quality of print. Series: International Research Publication on Technological Agriculture.
Download or read book Economic and Technical Feasibility of Increased Manufacture and Use of Fertilizers Agricultural Limestone and Livestock Minerals in Brazil written by Agri Research, Inc and published by . This book was released on 1964 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Production Levels and Fertilizer Use written by Food and Agriculture Organization of the United Nations. Fertilizer and Plant Nutrition Service and published by . This book was released on 1981 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer in crop production; Relationship between crop production, crop yield and fertilizer use; Yield response to fertilizer; Economics of fertilizer use; Goverment programmes and policies affecting fertilizer use.
Download or read book Maximizing the Efficiency of Fertilizer Use by Grain Crops written by Food and Agriculture Organization of the United Nations. Fertilizer and Plant Nutrition Service and published by Food & Agriculture Org.. This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IFA World Fertilizer Use Manual written by International Fertilizer Industry Association and published by . This book was released on 1992 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Risk Assessment of Soil Contamination written by Maria C. Hernandez Soriano and published by BoD – Books on Demand. This book was released on 2014-03-26 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is an irreplaceable resource that sustains life on the planet, challenged by food and energy demands of an increasing population. Therefore, soil contamination constitutes a critical issue to be addressed if we are to secure the life quality of present and future generations. Integrated efforts from researchers and policy makers are required to develop sound risk assessment procedures, remediation strategies and sustainable soil management policies. Environmental Risk Assessment of Soil Contamination provides a wide depiction of current research in soil contamination and risk assessment, encompassing reviews and case studies on soil pollution by heavy metals and organic pollutants. The book introduces several innovative approaches for soil remediation and risk assessment, including advances in phytoremediation and implementation of metabolomics in soil sciences.
Download or read book Brazilian Agriculture written by Luiz Gustavo Batista Ferreira and published by . This book was released on 2021-01-05 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilization is an agricultural practice that consists of applying fertilizers to the soil to recover or conserve its fertility (FONSECA; MARTUSCELLO; SANTOS, 2011). It is possible to supply the lack of soil nutrients and provide adequate development of cultivated plants, increasing productivity (SANTOS et al., 2010).In recent years it has been recognized that fertilization can be conducted on the basis of new strategies. One of the bases of innovation in fertilization is the continuous scientific research on the efficiency of new agricultural management techniques (FONSECA et al., 2008).The soybean crop, one of the key crops to the United States, China and Brazil, demands significant amounts of fertilizers, especially phosphates (SILVA; LODI; OLOVICIN, 2013). Brazil is the fourth largest consumer of fertilizers in the world, representing around 6.0 % of world consumption, behind only China, India and the United States.In some crops, such as cotton, the cost of fertilizer is 30 % of the total cost of production, leading farmers to adopt practices that increase the efficiency of fertilizers in intensive grain and fiber production systems. Conservationist agriculture is responsible to appropriate physical, biological and chemical agricultural conditions for crops to express their genetic productive potential (ZACANARO; KAPPES, 2014).Until the 1950s, the production of Brazilian agriculture depended almost exclusively on the natural fertility of soils, which is mostly low due to the high acidity and the presence of toxic trivalent aluminum contents for the main crops. In addition to these problems, we also highlight the low availability of macronutrients (N, P, K, Ca, Mg and S), micronutrients such as Zn and Cu, low CEC and, P fixation in tropical regions, which makes it unavailable for cultures since P is adsorbed by electrostatic or covalent mechanisms (ALCARDE et al. 1991). Luiz Gustavo is Agronomist Engineer graduated at State University of Londrina (UEL) and Master of Science.
Download or read book Fertilizer Use Statistics and Crop Yields written by Adolfo Martinez and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilizer Use in African Agriculture written by and published by World Bank Publications. This book was released on 2007 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The good practice guidelines - which form the basis of an interactive policymaker's tool kit included on a CD accompanying the book - relate not only to the more focused problem of encouraging increased fertilizer use by farmers, but also to the broader challenge of creating the type of enabling environment that is needed to support the emergence of efficient, dynamic and commercially viable fertilizer marketing systems."--Jacket.
