Recomendação de inoculante para cultura de milho utilizando a bactéria Herbaspirillum seropedicae, estirpe BR11417

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How much of nitrogen from fertilizer is absorbed by palisadegrass when intercropped with corn?

The study evaluates the influence of Palisadegrass in the use of N fertilizer, according to forms of implantation of Palisadegrass intercropped with corn in Brazil

Genome sequence of Pantoea ananatis strain amg 501, a plant growth-promoting bacterium isolated from rice leaves grown in paddies of southern spain.

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Genome sequence of Pantoea sp. strain 1.19, isolated from rice rhizosphere, with the capacity to promote growth of legumes and nonlegumes.

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Rotating strings

Analytical expressions are provided for the configurations of an inextensible, flexible, twistable inertial string rotating rigidly about a fixed axis. Solutions with trivial radial dependence are helices of arbitrary radius and pitch. Non-helical solutions are governed by a cubic equation whose roots delimit permissible values of the squared radial coordinate. Only curves coplanar with the axis of rotation make contact with it.Comment: added to discussion and made small revisions to tex

Variação da temperatura de sementes de soja durante o armazenamento.

A temperatura é importante para a conservação de sementes armazenadas, pois é um dos principais fatores condicionantes das reações bioquímicas e do desenvolvimento de patógenos. Uma prática que vem sendo introduzida no processamento de sementes é o resfriamento artificial imediatamente após o beneficiamento, visando reduzir a perda da qualidade das sementes durante o armazenamento. Portanto, objetivou-se avaliar a temperatura de sementes de soja resfriadas artificialmente, durante o armazenamento. O experimento foi conduzido na empresa Sementes Campo Verde Ltda, no município de Campo Verde, Mato Grosso (latitude de 15° 32? 48?? S, longitude de 55° 10? 08?? W e altitude de 736 metros). Dois lotes de sementes de cada um dos três cultivares Monsoy 8757, TMG 115 RR e BRS Valiosa RR, um com sementes resfriadas e outro não foram utilizados. Cada lote era formado por 360 sacos de 40 kg, em 30 camadas de 12 sacos, e as sementes armazenadas em armazém com temperatura média anual de 24,7 ºC e 60,6% de umidade relativa doN ar. As sementes foram resfriadas pelo processo dinâmico, após o beneficiamento, com refrigerador CoolSeed, modelo PCS 80, com quatro circuitos refrigeradores, totalizando potência de 130 kW. O experimento foi instalado em abril de 2009 e cada lote tinha 12 unidades experimentais (sacos), em três porções do lote, basal, mediana e superior, de quatro sacos, distanciados por seis camadas de sacos entre si. A temperatura foi medida por saco, com uma termossonda digital, marca @GROS, a 30 cm e 60 cm de profundidade, na diagonal de cada saco, após: 0, 15, 30, 45, 60, 90, 120 e 150 dias. As temperaturas das massas de sementes de soja dos lotes resfriados ou não foram semelhantes com 15 dias do resfriamento e entraram em equilíbrio térmico com o ar do armazém

Crossover effects in a discrete deposition model with Kardar-Parisi-Zhang scaling

We simulated a growth model in 1+1 dimensions in which particles are aggregated according to the rules of ballistic deposition with probability p or according to the rules of random deposition with surface relaxation (Family model) with probability 1-p. For any p>0, this system is in the Kardar-Parisi-Zhang (KPZ) universality class, but it presents a slow crossover from the Edwards-Wilkinson class (EW) for small p. From the scaling of the growth velocity, the parameter p is connected to the coefficient of the nonlinear term of the KPZ equation, lambda, giving lambda ~ p^gamma, with gamma = 2.1 +- 0.2. Our numerical results confirm the interface width scaling in the growth regime as W ~ lambda^beta t^beta, and the scaling of the saturation time as tau ~ lambda^(-1) L^z, with the expected exponents beta =1/3 and z=3/2 and strong corrections to scaling for small lambda. This picture is consistent with a crossover time from EW to KPZ growth in the form t_c ~ lambda^(-4) ~ p^(-8), in agreement with scaling theories and renormalization group analysis. Some consequences of the slow crossover in this problem are discussed and may help investigations of more complex models.Comment: 16 pages, 7 figures; to appear in Phys. Rev.