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| Silvopastoral systems may be an option to prevent grassland degradation because of the potential to control erosion and the ability of some tree species to add nitrogen and other nutrients to pasture, improving soil fertility. In view of this potential, in-depth evaluations of the soil and plant components of these systems are critical. The objective of this project was to verify the effect of trees on soil quality (fertility, biomass and microbial activity) and to evaluate the dry matter produc Status: Completed Start date: Thu Mar 01 00:00:00 GMT-03:00 2007 |
| The general objective of this project was to identify microbial strains that produce enzymes capable of degrading fibers or hydrolyzing secondary anti-nutritional compounds, aiming to identify microbial isolates (rumen bacteria or fungi) with fibrolytic capacity or tolerant to anti-nutritional factors, as well as to expeditiously isolate and characterize fibrolytic enzymes. It was also the objective of this project that the use of laboratory procedures would serve to train undergraduate and grad Status: Completed Start date: Fri Aug 01 00:00:00 GMT-03:00 2008 |
| Among the existing grass as alternatives to pasture-based production, the genus Cynodon (stargrass and bermudagrass) has advantages such as high productivity and forage quality, responsiveness to fertilization, resistance to cattle trampling, adaptability to a wide range of soil and climate conditions, and good tolerance to waterlogging and low temperatures. These factors distinguish Cynodon from other grasses predominant in tropical conditions and justify considering such specie Status: Completed Start date: Sun Dec 01 00:00:00 GMT-03:00 2013 |
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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 |
| 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 |
| Status: Completed Start date: Sat Nov 01 00:00:00 GMT-03:00 2014 |
| Cereal such as wheat, rice, corn, maize, oats, sorghum, millets, triticale, and rye make up the base of human and animal foods and feeds, respectively. Many of these species contribute significantly to the sustainability of agricultural production systems in Brazil, generating jobs and boosting the country's economy. Collectively, these cultures add up to 19 millions of cultivated hectares and 47 million tons of produced grains, which is almost half of the country's total grain production. Howev Status: Completed Start date: Thu Jan 01 00:00:00 GMT-03:00 2009 |
| 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 |
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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 |