Download or read book Fertilizantes qu mica y acci n written by NAVARRO GARCIA, GINES and published by Ediciones Mundi-Prensa. This book was released on 2014-01-01 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: El progresivo aumento de la población lleva consigo un incremento de la superficie cultivada que dé lugar a un incremento de la producción agrícola de alimentos capaz de cubrir las necesidades cada vez mayores de la población mundial. Ello implica que el suelo, la superficie cultivada, se encuentre en las mejores condiciones para proporcionar a los cultivos todo aquello que necesiten en las mejores condiciones físicas, químicas y biológicas. La obra que se presenta consta de diez temas. Los dos primeros nos recuerdan los conceptos fundamentales del suelo y de la nutrición vegetal, que nos permiten establecer correctamente la acción de los fertilizantes que a continuación se describen. El apartado de los fertilizantes propiamente dichos se inicia con un tema general, en el que se define el fertilizante, sus diversos orígenes, tipos y presentaciones, así como se describen algunas de las propiedades de estos compuestos y su influencia en los suelos. Tres temas se dedican a los fertilizantes nitrogenados, fosfóricos y potásicos, como suministradores de los tres principales macronutrientes vegetales. En ellos, junto a los productos de síntesis, se presta atención al uso de materiales naturales como aporte de estos elementos. El siguiente tema, el siete, nos aporta el conocimiento de aquellos productos que completan el suministro del resto de los nutrientes esenciales para las plantas: los macronutrientes secundarios y los micronutrientes, con especial atención a los quelatos y su acción. El estudio de materiales orgánicos, de origen animal y vegetal, completa la relación de materiales que se utilizan para reponer la fertilidad en sus aspectos físicos, químicos y biológicos, mejorando tanto el aporte de nutrientes como las propiedades del suelo. El compostaje como técnica de tratamiento de los residuos se muestra como un método eficaz para mejorar estos materiales antes de su adición a las superficies de cultivo. Finalmente, la consideración de las enmiendas que se realizan en los suelos, los productos utilizados y sus efectos, completan este libro. Para acabar, se relaciona una serie de obras generales, algunas utilizadas para la redacción de esta obra, que nos permiten introducir al lector en diversos aspectos de la investigación y la docencia. Los autores, los profesores Ginés Navarro y Simón Navarro, catedráticos de la Universidad de Murcia, ponen a disposición de profesores y alumnos esta obra, fruto de una amplia experiencia docente e investigadora en el campo de la Química Agrícola que relaciona aquellos productos, los fertilizantes de síntesis y naturales, con las cualidades del suelo que permiten una mejor y mayor producción agrícola.
Download or read book Fertilizantes Qu mica y acci n 2 edici n written by NAVARRO GARCIA, GINES and published by Ediciones Mundi-Prensa. This book was released on 2023 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book International Code of Conduct on Pesticide Management written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-09-03 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding that some pesticides are more hazardous than others is well established. Recognition of this is reflected by the World Health Organization (WHO) Recommended Classification of Pesticides by Hazard, which was first published in 1975. The document classifies pesticides in one of five hazard classes according to their acute toxicity. In 2002, the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) was introduced, which in addition to acute toxicity also provides classification of chemicals according to their chronic health hazards and environmental hazards.
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Download or read book The Soils of Mexico written by Pavel Krasilnikov and published by Springer Science & Business Media. This book was released on 2013-02-12 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mexico is an extensive country with an extremely complex mosaic of landscapes. The soils of Mexico have still not been completely studied, and there are few publications available on this subject. This book provides a state-of-the-art view on Mexican soils, their geographical distribution, their use and degradation. This is a first attempt to give a systematized characteristic of the soil resources of Mexico. Land resources of the second-biggest economy in Latin America are critical for its sustainable development, and a demand for adequate soil information is high. The information contained within can be used for any soil-related research done in Mexico and in neighboring countries. The book includes detailed characteristics of soils of all the physiographic regions of Mexico with maps, photos and explanatory schemes. The book is based on the experiences of the authors in research and soil survey, as well as on the existent, mainly ‘grey’ literature on Mexican soils. The book is recommended for researchers and university readers, students of all levels and decision-makers, working in the area of soil science, environmental issues, Earth sciences, land management and nature conservation.
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Download or read book Bulletin of the Pan American Union written by Pan American Union and published by . This book was released on 1900 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
