The state of Pará is the largest northern producer of rice, corn and caupi beans, and the second largest soy producer. These species are cultivated in all the macro-regions of the state, where the Research and Technology Transfer Support Centers (NAPTs) of the Oriental Amazon are located. Based on this structure, this project aims to propose a strategy for the disclosure and transference of cultivars that are adequate to the region's producers' socio-economic and environmental conditions, throug ...

Status: Completed     Start date: Sat Sep 01 00:00:00 GMT-03:00 2007

In family farming system, farmers and their families are responsible for agricultural work and for the management of small and medium property. Often, the low purchasing power of the majority and the lack of appropriate technical guidance make farmers adopt undesirable practices while growing maize. The range of satisfactory yields depends, among other factors, on a good soil fertility, seeding in appropriate times, an effective management of insect pests and diseases, and especially quality

Status: Completed     Start date: Sat Oct 01 00:00:00 GMT-03:00 2011

The insects of the order Lepidoptera are the main pests affecting the crop of corn and can cause up to 34% reductions in production. The control of these pests is achieved primarily through the use of chemical insecticides, a system that brings negative effects to man, animals and environment. The use of biological control in pest management has emerged as an alternative to minimize these effects of the application of synthetic chemical insecticides, preserving the natural environment and the

Status: Completed     Start date: Mon Oct 01 00:00:00 GMT-03:00 2012

Society has become increasingly aware of the need to preserve the environment and health, demanding quality standards for food and agro-ecosystems. In this context, the rational use of phytosanitary products guarantees the sustainability of food production systems, mitigating, and even eliminating the effects caused by the indiscriminate use of chemical control. Other relevant aspects to be considered are the benefits arising from the crop-livestock integration that mitigate the negative effects

Status: Completed     Start date: Wed Aug 01 00:00:00 GMT-03:00 2007

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