Maize and grass integrated system fertilized with polyhalite and KCl.

Crop-livestock integrated systems (CLIS) have been used as a strategy of sustainable agricultural intensification which integrates annual crops and livestock activities on the same area and in the same season.Poster number 1143

Avaliação de gramíneas e leguminosas forrageiras em terra roxa estruturada.

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Pesquisa com pastagem na região de Altamira, PA: resultados preliminares.

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Optimal estimation of losses at the ultimate quantum limit with non-Gaussian states

We address the estimation of the loss parameter of a bosonic channel probed by arbitrary signals. Unlike the optimal Gaussian probes, which can attain the ultimate bound on precision asymptotically either for very small or very large losses, we prove that Fock states at any fixed photon number saturate the bound unconditionally for any value of the loss. In the relevant regime of low-energy probes, we demonstrate that superpositions of the first low-lying Fock states yield an absolute improvement over any Gaussian probe. Such few-photon states can be recast quite generally as truncations of de-Gaussified photon-subtracted states.Comment: 4 pages, 3 figure

The silicon stable isotope distribution along the GEOVIDE section (GEOTRACES GA-01) of the North Atlantic Ocean

The stable isotope composition of dissolved silicon in seawater (δ30SiDSi) was examined at 10 stations along the GEOVIDE section (GEOTRACES GA-01), spanning the North Atlantic Ocean (40–60∘ N) and Labrador Sea. Variations in δ30SiDSi below 500 m were closely tied to the distribution of water masses. Higher δ30SiDSi values are associated with intermediate and deep water masses of northern Atlantic or Arctic Ocean origin, whilst lower δ30SiDSi values are associated with DSi-rich waters sourced ultimately from the Southern Ocean. Correspondingly, the lowest δ30SiDSi values were observed in the deep and abyssal eastern North Atlantic, where dense southern-sourced waters dominate. The extent to which the spreading of water masses influences the δ30SiDSi distribution is marked clearly by Labrador Sea Water (LSW), whose high δ30SiDSi signature is visible not only within its region of formation within the Labrador and Irminger seas, but also throughout the mid-depth western and eastern North Atlantic Ocean. Both δ30SiDSi and hydrographic parameters document the circulation of LSW into the eastern North Atlantic, where it overlies southern-sourced Lower Deep Water. The GEOVIDE δ30SiDSi distribution thus provides a clear view of the direct interaction between subpolar/polar water masses of northern and southern origin, and allow examination of the extent to which these far-field signals influence the local δ30SiDSi distribution

Agricultura familiar no MS: entre resultados expressivos e decisões politicas deficientes.

Resumo: O presente trabalho pretende demonstrar uma falta de melhor entendimento entre os setores responsáveis pelas políticas de fomento e incentivo para a agricultura familiar e os atores que trabalham e vivem neste setor importante para a produção de alimentos no estado de Mato Grosso do Sul. Os projetos bem sucedidos no Estado tem sensibilizado muito pouco as agências responsáveis pelo estudo e liberação de recursos para este setor pois há um histórico de pouca importância para o trabalho que é desenvolvido há décadas na região. As dificuldades acompanham estes trabalhadores rurais desde quando lhes foram indicadas terras e espaços onde poderiam desenvolver suas atividades; a pouca ou nenhuma preparação destes trabalhadores indicava também que suas tarefas mais importantes se referiam a um tipo de 'vigilância das fronteiras' em um período que havia temores com a política que vizinhos praticavam. Desta forma a abordagem adotada neste trabalho é histórica pois explicará, pelo menos em parte, os motivos que impedem melhorias e reconhecimento social pela adoção de políticas deficientes e apressadas da parte do poder público. Abstract: This paper intends to demonstrate a lack of a better understanding between the sectors responsible for policies on promotion and incentive to family farming and the actors who work and live in this important sector of food production in the state of Mato Grosso do Sul. The difficulties these workers come from rural areas when they were given land and spaces where they could develop their activities, to little or no preparation of these workers also indicated that their most important tasks referred to a kind of "border surveillance" in a period that had concerns with the policy practiced neighbors. Thus the approach adopted in this work is historical because it explains at least in part, the grounds for refusing recognition and social improvements by adopting weak policies and rushed from the government