Langaro AC, Agostinetto D, Oliveira C, Silva JDG, Bruno MS (2016) Biochemical and physiological changes in rice plants due to the application of herbicides. Embrapa Arroz e Feijão-Comunicado Técnico, Santo Antônio de Goiás Guimarães CM, Stone LF, Morais OP (2007) Resposta de cultivares e linhagens elites de arroz de terras altas ao défice hídrico. Arroz - Análise Mensal - Maio-Junho/2020. Pilecco IB, Silva MR, Ribas GG, Duarte Júnior AJ, Na S, Zanon AJ (2020) Can Brazil produce enough rice to meet demand in 2028? Cienc e Nat 42:e33. Embrapa Arroz e Feijão, Santo Antônio de Goiás Pinheiro BS (2003) Cultivo do arroz de terras altas. Ĭrusciol CAC, Machado JR, Arf O, Rodrigues RAF (1999) Componentes de produção e produtividade de grãos de arroz de sequeiro em função do espaçamento e da densidade de semeadura. The economic analysis is determined by the spraying costs.Ĭrusciol CAC, Arf O, Soratto RP, Mateus GP (2008) Grain quality of upland rice cultivars in response to cropping systems in the Brazilian tropical savanna. The application of 252.0 g of Si ha −1 promotes a grain yield (5778 kg ha −1) and also a higher differential revenue (the US $ 129.49 per hectare). However, foliar silicon application up to the dose of 252.0 g ha −1 under water stress increased the grain yield of rice grown in rainfed system in approximately 9%. ![]() Positive gradient of Si doses absorption represented increased grain yield by 252.0 g ha −1 of Si, and after this grain yield decreased. Si application increased silicon contents linearly, which reached 8.34 and 12.17 g kg −1 when evaluated at 60 and 90 DAE, respectively, with a dose of 504.0 g ha −1 of Si. We evaluated foliar contents of Si and N, relative chlorophyll content (RCC), and grain yield. We divided foliar fertilization into three applications, at 30, 60, and 90 days after emergence (DAE). We balanced potassium concentrations in the solutions applied to all treatments. ![]() We used a randomized block design consisting of foliar application of the following five doses of Si: 0 126.0 252.0 378.0 and 504.0 g ha −1 of Si applied as potassium and sodium silicate, with five replications. Thus, we evaluate the effect of foliar application of Si on the development and grain yield of upland rice. Rice is a Si accumulator, surpassing even nitrogen and potassium accumulation when compared. ![]() Silicon, although not an essential element for plant, when it is absorbed can alter cells flexibility, and then may affect plant architecture reduce leaf senescence and deleterious effects caused by abiotic stresses.
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