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Soil quality may be measured through the use of indicators, which are attributes that measure or reflect the environmental state or condition of sustainability of the referred ecosystem. The knowledge regarding the spatial distribution of soil quality and its levels becomes essential in this case, once it favors the study of their relation with the type of soil management, with the environmental impact and the productive capability of agricultural systems. For such, it is important to have a met Status: Completed Start date: Tue Sep 01 00:00:00 GMT-03:00 2009 |
From an economic point of view, Brazilian agribusiness has been recognized as modern, prosperous, profitable and competitive activity whose magnitude has established Brazil as a world agricultural power. The activity accounts for 26% of the gross domestic product, 42% of the volume of Brazilian exports, and 37% of the total number of jobs in the country. The finding from this scenario is that development in the country is strongly dependent on an increasing production of agricultural products ...Status: Completed Start date: Mon Apr 01 00:00:00 GMT-03:00 2013 |
Status: Completed Start date: Sat Nov 01 00:00:00 GMT-03:00 2014 |
Spectroscopy, which is always associated with chemometrics, is a versatile technique that is applied in several areas of science. It is fast, non-destructive, low-cost and, in addition, “clean”, requiring few or no reagents. The latter factor aligns the tool with green chemistry. Status: Completed Start date: Fri Mar 01 00:00:00 GMT-03:00 2013 |
Some results of practical interest to soil management can be extracted from the soil's water retention curve. The recent validation of the Arya and Paris model for Brazilian soils created excellent opportunities to expand the functionality of the soil granulometric analyzer which is used to obtain in detail the entire particle distribution curve. Since the granulometric analysis takes only 20 minutes, at the same time, through the developed computing implementation, the following results can als Status: Completed Start date: Sun Apr 01 00:00:00 GMT-03:00 2007 |
The intense world demand for food together with environmental issues related to the sustainable use of natural resources draw a picture of search for the maximum efficiency in agricultural productivity, which involves greater efficiency in monitoring crop areas. Analytical tools capable of encompassing sample variation and territorial reach demand high costs for their operation and for the replication of results. Remote sensing has proved a very efficient tool for mapping/monitoring agricultu ...Status: Completed Start date: Thu Sep 01 00:00:00 GMT-03:00 2011 |
This project proposed to develop a field densitometer based on the use of Compton scattering and visualization algorithms as innovative methods to non-invasively and non-destructively measure density and compaction in agricultural soils in the environment under analysis. For the methodological evaluation, the results were compared with classical soil analysis techniques . Status: Completed Start date: Tue Jun 01 00:00:00 GMT-03:00 2010 |
The soil is of vital importance for the planet. The soil is the main support of agriculture; for climate change, it is one of the regulating elements of the water cycle. Status: Completed Start date: Thu Dec 01 00:00:00 GMT-03:00 2011 |
Fine-texture soils in Brazil are generally deemed to have low agricultural potential. Due to low levels of clay and organic matter, they usually present low nutrient and water retention capacity, and, when poorly managed, may produce negative impacts associated with high risks of groundwater contamination by nutrients and other chemical pollutants, or with potential erosion when directly exposed to rain. Status: Completed Start date: Mon Oct 01 00:00:00 GMT-03:00 2012 |
Given the serious agricultural losses suffered by the highland region of the state of Rio de Janeiro due to heavy rainfall in January 2011, this projects aimed at transferring agroecological technologies that have been already developed and adapted to the region through cooperative methodologies that foster interaction between researchers and farmers. It was expected to contribute to counter the environmental and economic risk scenario afflicting family farming in the region; diversify productio Status: Completed Start date: Thu Mar 01 00:00:00 GMT-03:00 2012 |