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River and may represent a methodological advance in the study of models of distribution of species of the ichthyofauna in the Eastern Amazon, in addition to assisting the management of this aquatic ecosystem and water resources, by public agencies. Parasitic diseases can be considered one of the factors that threatens fish populations in a natural environment, since parasites can actively act in the destruction of the communities of these animals, affecting the relative abundance of different ...Status: Completed Start date: Sat Mar 01 00:00:00 GMT-03:00 2014 |
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The project consists of studying the parasitic communities of fish species such as catfish and scales fish in the Amazon River system. The main points of analysis are the description of these parasitic communities, description of new species and checking whether the size of the host fish has an influence on the abundance of these parasites, their diversity, seasonal variation and their dispersion in the fish. The parasitic communities of different species of fish will be compared, as well as ...Status: Completed Start date: Tue Mar 01 00:00:00 GMT-03:00 2016 |
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The TecRede project aims to generate technologies that would, in a short period of time, the development of tambaqui (Colossoma macropomum) cultivation in cage systems. The project chose the tambaqui to foment the development of cage fish farming since it is a fish native to Amapá, which has favorable domestic and international market demand, with production absorption capacity. The research network intends to determine the standardization of techniques and production systems based on Good Pr ...Status: Completed Start date: Fri Aug 01 00:00:00 GMT-03:00 2014 |
| This project is a result of the demands made by the farmers from the Rio Capim Pole (the counties of Irituia, Concórdia do Pará, Mãe-do-Rio and São Domingos do Capim), which are involved in fish farming. This pole is characterized by the existence of group actions done by farmers and local institutions, which have the goal to strengthen the balance between family farming and environmental preservation (agroecology), the fish farming being part of this context as an expanding productive system. T ... Status: Completed Start date: Tue Jan 01 00:00:00 GMT-03:00 2008 |
| Brazil’s sugarcane sector plays an important role in the national economy. The country is the world’s biggest producer of sugarcane and sugar, and second in ethanol production, which contributes positively to the trade balance. In the last 15 years, the crop area has expanded tremendously, occupying so called “expansion” production areas, which differ from the traditional ones mainly in rainfall rates, leading producers to adopt irrigation. Specifically in the Northeast region, crops have migrat Status: Completed Start date: Sun Jun 01 00:00:00 GMT-03:00 2014 |
| There has been increased interest in the use of techniques to collect and store rainwater in the last few decades, with funding from national and international bodies; however, the general performance of these activities at farmer level is lower than expected, and that relates to the lack of knowledge of the existence and importance of techniques to cope with semiarid conditions. Status: Completed Start date: Sun Aug 01 00:00:00 GMT-03:00 2010 |
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One of the challenges smallholders in Northern Ethiopia face is improving food security in periods of low rainfall supply by identifying strategies to restore soil water stocks. In that region, over 50% of the water available for agriculture is lost due to issues like direct evaporation, surface runoff and deep drainage. The hypothesis is that the use of low cost technologies and intelligent solutions to identify strategies for water resupply and/or water storage in low cost containers like c ...Status: Completed Start date: Sat Aug 01 00:00:00 GMT-03:00 2015 |
| Status: Completed Start date: Fri Jan 01 00:00:00 GMT-03:00 2016 |
| 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 aim of this research is to determine the forage yield, quality and physiology of a Panicum spp. cv. Massai pasture in response to two grazing intensitiesand three irrigation depths. In Tocantins State, the difference between the average monthly minimum and maximum temperature reaches more than 16ºC, evenso, the lowest base temperature observed does not compromise the development of tropical forages. More than 93% of rainfall occurs between October andApril. This way, between May and Septembe ... Status: Completed Start date: Wed Jan 01 00:00:00 GMT-03:00 2014 |