Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/42077
Title: Incorporação de micronutrientes em formulado NPK e o efeito na nutrição e produtividade da soja
Other Titles: Micronutrients incorporation in npk formulation and the effects in nutrition and grain yield of soybean
Authors: Pozza, Adelia Aziz Alexandre
Silva, Douglas Ramos Guelfi
Silva, Carlos Alberto
Mattiello, Edson Marco
Keywords: Micronutrientes
Tecnologias para fertilizantes
Suspensão concentrada
Soja - Produtividade
Micronutrients
Fertilizer technologies
Concentrated suspension
Soybean - Fertilizers
Soybean - Productivity
Issue Date: 23-Jul-2020
Publisher: Universidade Federal de Lavras
Citation: SARKIS, L. F. Incorporação de micronutrientes em formulado NPK e o efeito na nutrição e produtividade da soja. 2020. 69 p. Dissertação (Mestrado em Ciência do Solo) – Universidade Federal de Lavras, Lavras, 2020.
Abstract: The objective of this work was to reevaluate patterns of nutritional needs in B, Zn, Mn and Cu along the soybean and corn cycle from different forms of adding these micronutrientes to NPK. The treatments used were: NPK 02-20-20 without micronutrients (T1); NPK 02-20-20 + granulated micronutrients (T2); NPK 02-20-20 + micronutrients in concentrated suspension (T3) and NPK 02-20-20 + micronutrients in powder (T4), in addition to the control that received no fertilizer (C). The field experiment was conducted at the Palheta farm, located in the municipality of Luminárias -MG, in a red Argisol, cultivating soybean and corn in succession in the 2018/2019 harvest. This experiment was carried in bands, adopting a completely randomized design (DIC), with 8 lines spaced by 0.6m and 24m in length per treatment. The greenhouse experiment was conducted at the Department of Soil Science, UFLA. Samples of sandy and clayey soil with low fertility previously prepared were used to achieve increasing bases saturations. The adopted design was in randomized blocks in a factorial scheme (4x5), with 4 treatments + control and 4 saturation by bases (40, 50, 60 and 70%). All results were submitted to the normality test and subsequently to the analysis of variance and the treatments were compared by the t-student test (LSD) at the level of 5% significance. All statistical analyzes were performed using the SISVAR 5.3® software. The decreasing order of the maximum extraction of these micronutrients by soy throughout the cycle was Mn> Zn> B> Cu. However, the decreasing order of micronutrient exports by soybeans throughout the cycle was Zn> Mn> Cu> B. The quantities of Zn, Cu, Mn and B exported by soybeans corresponded to 43; 23; 20 and 9.4%, respectively, in relation to the total extracted by the culture throughout the cycle. Keywords
URI: http://repositorio.ufla.br/jspui/handle/1/42077
Appears in Collections:Ciência do Solo - Mestrado (Dissertações)



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