Sistemas de produção e tecnologia na cultura do algodoeiro.

Resumo: A cultura do algodoeiro destaca-se entre os agricultores brasileiros, pois apresenta grande estrutura de produção e logística, tendo a fibra nacional grande valor nas exportações para os exigentes centros de comercialização. As informações geradas pelo projeto ?Monitora Oeste? são muito demandadas pelos produtores durante o período de condução de suas lavouras, principalmente durante o período de maior suscetibilidade de ocorrência de doenças. Elas, estando disponibilizadas de forma rápida, de fácil acesso e especializada em mapas, ajudará o produtor na tomada de decisão. O manejo nutricional do algodoeiro requer atenção dos produtores, pois a cultura apresenta um ciclo que pode chegar a 200 dias, uso de cultivares modernos e cultivo crescente em solo arenoso. Dessa forma, a utilização de fontes e doses de boro e silício apresentam-se com estratégias seguras para o sistema de produção atual

New insights into the distribution and conservation status of the Golden-White Tassel-Ear Marmoset Mico chrysoleucos (Primates, Callitrichidae)

Among the 13 Mico species recognized by the IUCN Red List of Threatened Species, six are listed as "Data Deficient". The geographic range of most of the Mico species has been estimated from only a few records. We report new localities and the geographic extension of Mico chrysoleucos. In addition, we confirmed the presence of the species in two distinct protected areas. We modeled the habitat suitability of M. chrysoleucos using the maximum entropy method and including new records obtained by the authors in the state of Amazonas, Brazil. From the total area of occurrence calculated for the species, 22.8% is covered by protected areas and indigenous lands. The annual mean deforestation rate estimated between 2000 and 2015 was 2.95%, and the total area deforested by 2015 was 3354 km2 or 8.6% of the total distribution limits of the species. The habitat lost between 2000 and 2015 was 3.2% (1131 km2 ) of the total potential distribution, while the habitat loss area legally protected was 31 km2, and the habitat loss in settlements was equal to 691 km2. Our results extend the geographic distribution of the species about 100 km farther south, with the Maracanã River being a possible geographic barrier for the species. The significantly low rate of habitat loss inside protected areas and indigenous land, when compared to unprotected areas, points out the importance of these areas to M. chrysoleucos conservation. The species is relatively wide-ranging, legally protected, and resilient to regional anthropic threats. However, the hydroelectric schemes and the improvement of the road system in southern Amazonia pose an imminent threat to the species