Productivity and forage quality of elephantgrass (Pennisetum purpureum) are directly affected by weed interference. The difficulty of control of these species is one of the main barriers to production and use of the forage as feedstock, as well as to the production of biomass for energy use. Despite the great progress in agro-ecological weed control techniques, herbicides are still indispensable. Thus, the rational use practices of these products should be improved in order to produce quality fo

Status: Completed     Start date: Fri Aug 01 00:00:00 GMT-03:00 2014

GM crops that are resistant to glyphosate have created a new scenario in Brazilian agriculture. Glyphosate has been generally used mainly in soybean farms in the Brazilian states of Rio Grande do Sul, Santa Catarina and Paraná. In the state of São Paulo, glyphosate is widely used in orchards, especially citrus ones. The repeated use of glyphosate has given rise to cases of weed resistance to this herbicide in different places of the country. The trend is that new glyphosate resistant crops such ...

Status: Completed     Start date: Fri Apr 01 00:00:00 GMT-03:00 2011

Concern about the environmental impacts of agricultural activities has taken on a large dimension, especially in the last decade. These impacts are expressed, for example, in reduction of biological diversity, erosion and contamination of soils, silting and contamination of water springs, increase of agrochemical residues in food, among others. However, the incorporation of the concept of sustainability has led agricultural research in the growing search for alternative and sustainable models of

Status: Completed     Start date: Fri Apr 01 00:00:00 GMT-03:00 2011

Pastures of Cynodon spp. and elephantgrass ( Pennisetum purpureum Schum.) have their productivity and forage quality directly affected by weed interference. The difficulty of controlling weeds is one of the main obstacles to growing and using these forage crops as an input in animal feeding, as well as in the production of elephantgrass biomass for energy use. Despite the progress in agroecological weed control techniques, herbicides are still indispensable, especially in crops on ...

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

Pasture degradation is one of the main problems of Brazilian cattle farming. Several strategies to recover the productivity of degraded pastures have been developed by Embrapa and other research and education institutions. In such studies, reducing the costs of the recovery of degraded pastures has been one of their main focuses. Integrated crop-livestock systems (ICLS) have proved to be some of the best alternatives to reduce the costs of pasture fertilization. ICLS have potential to increase t

Status: Completed     Start date: Thu Nov 01 00:00:00 GMT-03:00 2007