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Evaluación del trabajo de la Oficina Subregional de la FAO para Mesoamerica 2012-2017. Anexo 5 Detalle de los MPP de los países de la subregión SLM y de los proyectos aprobados durante el periodo de evaluación, según las prioridades de los MPP










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    Book (series)
    Technical study
    Taro cultivation in Asia and the Pacific 1999
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    Taro, Colocasia esculenta (L.) Schott occupies a significant place in the agriculture of the Asia-Pacific Region. It is in this region, more than any other in the world, that the crop attains its greatest importance as a staple food. In Oceania particularly, taro plays a critical role in the household, community, and national food security. Since both corms and leaves are usually consumed, taro supplies much-needed protein, vitamins, and minerals, in addition to carbohydrate energy. The socio-cultural importance of taro in the region is very high. The crop has evolved to be an integral part of the culture and features prominently in festivals, social gift-giving, and the discharge of social obligations. More recently, taro has become a source of income for individuals, and an earner of foreign exchange. Its role in rural development has therefore been increasing, especially with respect to the provision of employment and the alleviation of rural poverty. Given the importance of taro, activities need to be geared toward its research, development, and available literature. This book is, therefore, a valuable and timely effort to fill some of the information gaps with respect to taro in the Asia-Pacific Region. Apart from a general coverage of the region, it delves into a country-by-country treatment of taro cultivation in 19 of the most important taro-growing countries in the region. The publication will be a useful reference source for researchers, extension workers, growers, and entrepreneurs who are interested in taro. The presentation has placed emphasis on clarity and simplicity to permit easy understanding even by persons for whom English is a second language.
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    Booklet
    Corporate general interest
    Standard operating procedure for soil available phosphorus - Bray I and Bray II method 2021
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    P-Bray 1 and P-Bray 2 methods are normally limited to acid soils with water pH values less than 6.8. The P-Bray 1 Method removes a fraction of the “adsorbed” phosphorus (Al-P, Fe-P, Mn-P and Ca-P but less efficient) while the P-Bray 2 Method is best suited to acid soils where rock phosphate has been the primary P fertilizer source and/or the major portion of P exists in the soil in various forms of calcium phosphate. Bray extractants should not be used on alkaline soils because the acid tends to be neutralized and/or excessive calcium phosphates may be extracted, giving a false high test for available P.
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    Brochure, flyer, fact-sheet
    Brochure
    Standard operating procedure for soil available phosphorus - Olsen method 2021
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    This procedure is suitable for calcareous, alkaline, neutral, and slightly acidic soils containing CaPO4, since the calcium concentration in the solution is suppressed by the precipitation of CaCO3, increasing PO4 concentration in solution. Neutral and slightly acid soils (pH 6.0 to 7.0) may contain both Ca- and Al-phosphates. The NaHCO3 extractant can remove Ca-phosphates and phosphate adsorbed on the surface of calcium and magnesium carbonates along with Al-phosphates and is considered the most suitable extractant for these soils.