Climate change associated factors including temperature increases, changes in rain fall pattern and occurrence of pest and diseases negatively influence agricultural production, productivity and quality. Climate change effects particularly in region suffer persistent soil and water resource scarcity significantly increases production risk. The effects of climate change on agriculture may depend not only on changing climate condition, but also on the ability to adapt through changes in technology and demand for food.
It is difficult to establish the precise mathematical model of agricultural wheeled robots with differential drive for path tracking control, due to characteristics of nonlinear, strong coupling and multivariable. Here, path tracking control is studied for agricultural wheeled robot with differential drive based on sliding mode variable structure. Firstly, the motion model of agricultural wheeled robots with differential drive is established and control goal is determined for path tracking. Then, sliding mode variable structure is applied to design the controller.
In theory, under the federal structure agricultural extension services can serve communities better as it aims to be client responsive and accountable to its consumers at the village level. However, poor understanding of federalism that has only recently emerged from the persisting centralized and feudal conceptions, limited practices of democratic norms and values primarily due to the lack of understanding of local governance, and limited commitment of political actors and policy makers to federalism, may derail the good intentions behind federalism.
The Agricultural Innovation Program (AIP), funded by the United States Agency for International Development (USAID) in Pakistan, aims to increase agricultural productivity and the income of farmers in four sectors (cereals, livestock, vegetables, and horticulture) by increasing the use of modern technology and management practices, improving the performance of value chains, and increasing the capacity of the public and private sectors to support the agricultural production system.
The United States Agency for International Development (USAID) funded the Assets and Market Access Innovation Lab (AMA IL) to advance knowledge and understanding of development approaches and technologies in order to increase rural households’ ability to acquire, protect, and effectively utilize productive assets. This evaluation assessed AMA IL’s overall program performance across five themes: research quality; outreach and dissemination; policy; capacity building; program management; and future directions.
Angola has so much potential as an agricultural country, with up to 50 million hectares that could be cultivated. But why
This report explores three different scenarios for the future of food and agriculture, based on alternative trends for key drivers, such as income growth and distribution, population growth, technical progress in agriculture, and climate change. Building on the report The future of food and agriculture – Trends and challenges, this publication provides scenario-based quantitative projections to 2050 for food and agriculture.
Los artículos reunidos en este volumen se basan en las ponencias presentadas por los expertos que participaron en el seminario internacional “Políticas para la agricultura en América Latina y el Caribe: competitividad, sostenibilidad e inclusión social”, realizado en la sede de la Comisión Económica para América Latina y el Caribe (CEPAL) en Santiago los días 6 y 7 de diciembre de 2011.
En esta publicación, el IICA recopila las principales características de los servicios de extensión rural de nueve países latinoamericanos, presentadas en la cita efectuada en México, así como un repaso por dos redes regionales de investigación en esta área. Con este documento, el Instituto confía en aportar a sus Estados Miembros una herramienta valiosa para fortalecer el trabajo realizado por sus propias instituciones y extensionistas.
El objetivo central de la estrategia es alcanzar la seguridad alimentaria de los más de cuatro millones de pequeños productores rurales e incrementar su productividad, alcanzando la sustentabilidad en el largo plazo, por medio de una estrategia que garantice la operación eficiente de una red de extensión rural con enfoque territorial que incremente sustantivamente la cobertura de los servicios.