La planeación de las formas de la racionalidad

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Formas de organización de una red latinoamericana de centros de documentación especializados en comunicación

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Nuevas formas de inversión de las empresas extranjeras en la industria argentina

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Família brasileira em transição: evolução e perspectivas futuras

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El comercio internacional de manufacturas de la Argentina, 1974-1990: políticas comerciales, cambios estructurales y nuevas formas de inserción internacional

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Algunas consideraciones sobre las formas de medir el fraude comercial externo en Argentina

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Viejas y nuevas formas de la ciudadanía

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Tres formas de coordinación social

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Formas de fósforo no solo após o cultivo de braquiária e tremoço branco

Phosphorus is one of the major factor that limits agricultural productivity in most tropical soils. The objective of this study was to assess P transformations and availability in a soil cropped to brachiaria (Urochloa ruziziensis) and white lupin (Lupinus albus L.). The study was carried out in a greenhouse at Botucatu, State of São Paulo, Brazil. Brachiaria and white lupin were grown in pots with soil fertilized with 0, 20, 40, 60 and 80mg dm-3 P. The plants were grown for 60 days, when they were harvested and the soil was sampled. Dry matter yields of both species were increased with P rates. Soil bioactive P is increased with P fertilization, but is not affected by the plant species. White lupin is more effective in taking up the organic soil P, but Brachiaria was more effective in reducing the soil maximum P adsorption capacity.

Hacia la igualdad de la mujer: avances legales desde la aprobación de la Convención sobre la eliminación de todas las formas de discriminación contra la mujer

Documento de Referencia DDR/1

Formas de aplicación de zinc para las plantas de maíz que crecen en Oxisol: Efectos sobre el suelo, la nutrición de las plantas y la productividad

The way of applying zinc can influence the zinc uptake and productivity of crops, especially cereals that have high demand for this nutrient. The aim of this study is to evaluate methods of Zn application on soil, nutritional status and productivity of maize. For this, an experiment was undertaken at FCAV/UNESP, Jaboticabal-SP, in Oxisol clay (DTPA on Zn: 0.5 mg dm-3) with maize (hybrid Simple Impact), from December through May 2009. Nine treatments with three doses of Zn in soil banded application (in furrows) and three doses of Zn by incorporation in soil (0-20 cm depth), foliar application, seed application and control (no Zn). The treatments were arranged in a randomized block design with four replications. Regardless of the method, Zn application promoted higher contents of this micronutrient in soil and higher accumulation in the shoots as well as increasing Zn in the maize grain. However, it did not affect the nutritional status and yield of the maize. The Zn application in the soil resulted in a greater Zn uptake by plants and maize yield, compared to Zn application in the plant by seed or foliar.

Formas de aplicação de zinco e molibdênio no feijoeiro

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Variabilidade vertical de formas de fósforo em função de fontes e doses de fosfatos em semeadura direta

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

El efecto de los subsidios, la reglamentación y las diversas formas de propiedad en la calidad y eficacia operativa de los servicios del transporte urbano en América Latina

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