GPS is the positioning technology of choice for a wide range of land-based applications. Since the mid-1990s GPS products have been on offer for the 'agricultural market'. GPS on its own does not appear to contribute much to improving agricultural productivity. Hence 'precision agriculture' has generally referred to the intergation of GPS within a total system that, for example, uses spatial in...

Environmental changes are likely to affect agricultural production over the next 20-30 years. The interactions between environmental change, agricultural yields and crop quality, and the critical pathways to future diets and health outcomes remain largely undefined. There are currently no quantitative models to test the impact of multiple environmental changes on nutrition and health outcomes. ...

The farmers working in the farmlands are dependent on the rains, river, pond and bore wells. Even if the farm land has a water-pump, most of the time it is being kept stand-still due to non-availability of grid power in the remote areas where the potential of sun light availability is tremendous throughout the year. Increase in agricultural production depends to a large extent on the availabili...

Recent human population increase has been enabled by a massive expansion of global agricultural production. A key component of this "Green Revolution" has been application of inorganic fertilizers to produce and maintain high crop yields. However, the long-term sustainability of these practices is unclear given the eutrophying effects of fertilizer runoff as well as the reliance of fertilizer p...

Soil health is presented as an integrative property that reflects the capacity of soil to respond to agricultural intervention, so that it continues to support both the agricultural production and the provision of other ecosystem services. The major challenge within sustainable soil management is to conserve ecosystem service delivery while optimizing agricultural yields. It is proposed that so...

This paper measures the economic impact of climate change on agricultural land in the United States by estimating the effect of the presumably random year-to-year variation in temperature and precipitation on agricultural profits. Using long-run climate change predictions from the Hadley 2 Model, the preferred estimates indicate that climate change will lead to a $1.1 billion (2002$) or 3.4% in...

Agricultural growth has long been recognized as an important instrument for poverty reduction. Yet, measurements of this relationship are still scarce and not always reliable. This paper presents additional evidence at both the sectoral and household levels based on recent data. Results show that rural poverty reduction has been associated with growth in yields and in agricultural labor product...

Based on a survey of 897 farming households in Shaanxi and Gansu provinces, our results show that while farming households had high demands for capital, 47.7% have experienced having their application for a Rural Credit Cooperative (RCC) loan denied because of their low income. Agricultural production and income are significantly influenced by weather risks, and agricultural income accounts for...

Many scholars in China have done a lot of research on regionalization of agricultural resources in the Huang-Huai-Hai Plain, but there is no quantitative research on agriculture of the whole plain. By using qualitative and quantitative analysis based on the basic data collected over 300 counties in the Huang-Huai-Hai Plain, considering such indicators as the natural resources of the plains and ...