02312naa a2200301 a 450000100080000000500110000800800410001902400520006010000170011224500790012926000090020852013590021765000160157665000150159265000100160765000170161765000250163465000090165965300220166865300260169065300200171670000180173670000150175470000170176970000190178670000140180577301910181920996962021-09-15 2018 bl uuuu u00u1 u #d7 ahttp://dx.doi.org/10.5772/intechopen.758842DOI1 aSCHERNER, A. aRice Crop Rotationba solution for weed management.h[electronic resource] c2018 aThe challenges for weed management have increased in rice cultivation due to the high number of cases of herbicide-resistant weeds, especially the widespread distribution of imidazolinone-resistant weedy rice. Therefore, there has been particular interest in preventive, physical, and cultural methods in recent decades. In this context, the adoption of the rice-soybean rotation is reported to be one of the most important factors for weed management in rice fields. Additionally, the use of a diversified crop rotation enables the implementation of a broader herbicide program, which is an important feature influencing weed population dynamics. Rice-soybean rotation has been adopted by farmers to control problematic weed species, reduce seed bank of troublesome weed species, and prevent rice grain yield and quality losses caused by its interference. This crop rotation scheme has brought several benefits when it comes to weed management; however, there are also some drawbacks when adopting this strategy such as the limited productivity of soybean and new weed species becoming problematic, such as Conyza species. Thus, this chapter explores the advantages and disadvantages of adopting crop rotation in Brazilian lowlands, and proposes a set of strategies to successfully implement crop rotation in lowland soils as a tool for weed management. aAgriculture aHerbicides aArroz aErva Daninha aRotação de Cultura aSoja aResidual activity aRice-soybean rotation aWeed resistance1 aSCHREIBER, F.1 aANDRES, A.1 aCONCENCO, G.1 aMARTINS, M. B.1 aPITOL, A. tIn: SHAH, F.; KHAN, H.; IQBAL, A. (ed.). Rice crop: current developments. [Rijeka]: InTech, 2018. cap. 6, p. 83-98. Disponível em: www.intechopen.com/books/6366 Acesso em: 14 nov. 2018.