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

As Brazil increases its production of biodiesel, so does the production of glycerin, a by-product with a high energy value. At the same time, corn, the main energy component in concentrated feeds, in addition to being the ingredient that most increases feed costs, tends to become less available in the market due to its use in the production of alcohol in Europe and the United States. Glycerol, the main component of glycerin, has already been used in some countries, mixed with concentrate for lac

Status: Completed     Start date: Mon Nov 01 00:00:00 GMT-03:00 2010

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

This project proposes to evaluate and adapt technologies to integrate the intensive cultivation of tambaqui in a recirculation system to produce vegetables through the use of residual waters technology and the use of effluents. The technology diffusion activities have the partnership of extension agents from PESCAP (Amapá Fisheries Agency) and RURAP (Amapá Rural Development Institute) and producers. As results, it is expected to: 1) Strengthen institutional relations between Embrapa Amapá an ...

Status: Completed     Start date: Fri Jan 01 00:00:00 GMT-03:00 2016

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.
Considering the social-economic importance of agricultural activities in rain-dependent areas, it is necessary to ...

Status: Completed     Start date: Sun Aug 01 00:00:00 GMT-03:00 2010

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

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 identification of animals with more efficiency in feed utilization is one of the alternatives to overcome the challenges as increased production costs, increased consumer awareness regarding food safety, animal welfare and environmental impacts of the agriculture and livestock. As feeding expenses account for the main cost of livestock activity, differences among animals in converting diet to beef and milk are of great relevance. Animals that use feed more efficiently need to consume less to

Status: Completed     Start date: Sat Jul 01 00:00:00 GMT-03:00 2017

The main goal of the project is the conception of a new silo with improved air flow to dry newly-harvested corn cobs. Smallholders generally use silos that create strong resistance to room air flow, causing reduced grain quality. Studies indicate that the Venturi effect in drying silos could solve the issue of low air flow in such silos. The incorporation of the Venturi effect will be performed through a conic metal wall structure that will receive the wind on a more open wall. The wind will lea

Status: Completed     Start date: Wed Jun 01 00:00:00 GMT-03:00 2016

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