Agricultural systems basically depend on ecological processes and services provided by ecosystems. These ecological processes and services, called ecosystem services or environmental services, relate to the conditions and processes through which ecosystems sustain human life by supplying provisions (food, timber, fiber and fuel production), regulation (of water, of climate, protection against droughts, flooding, storms, spread of diseases and soil degradation, waste purification), support (hydro

Status: Completed     Start date: Thu Mar 01 00:00:00 GMT-03:00 2012

A crescente demanda de água para fins industriais e residenciais, geração de energia, mineração, lazer, somados aos problemas ambientais, faz com que quantidade de água para a agricultura apresente uma tendência de redução. A agricultura é o maior usuário de água em todo o mundo. O setor agrícola brasileiro é o principal usuário consuntivo dos recursos hídricos. Uma provável solução para esse problema é aperfeiçoar como a água é manejada, o que envolve a adoção de tecnologias e procedimentos ade ...

Status: Completed     Start date: Tue Jan 01 00:00:00 GMT-03:00 2013

The Precision Agriculture Network counts with 20 Embrapa research Units and approximately 200 researchers: 15 experimental units distributed throughout the Northeast, the Mid-West, Southeast and South of the country; 11 perennial and annual cultures, and approximately 100 Research, Development and Innovation activities. The network was started at the end of 2009, and proposed to establish agricultural and stockbreeding concepts focused on space-time variability management for the sustainability

Status: Completed     Start date: Sun Nov 01 00:00:00 GMT-03:00 2009

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

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.
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

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

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