Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Rafael Otto"'
Autor:
Matheus da Silva Araújo, João Paulo Rodrigues Marques, Gabriel Lucas de Melo Aoki, Wellington Rosa Soares, Rafael Otto
Publikováno v:
Scientia Agricola, Vol 81 (2024)
ABSTRACT Fertilization with boron (B) is a crucial aspect in the management of tropical soils to achieve high yield and wood quality in forest species. However, studies are still needed for a better understanding of the effects of B on the anatomy an
Externí odkaz:
https://doaj.org/article/5f79d488fdcf4350b106f22878268c67
A sample preparation method for reducing variability in the chemical analysis of mineral fertilizers
Autor:
Rafael Otto, Pedro Henrique de Cerqueira Luz, Jessica Angela Bet, Sophia Regina Quaglio, Risely Ferraz-Almeida, César Gonçalves de Lima
Publikováno v:
Scientia Agricola, Vol 81 (2024)
ABSTRACT Analyses of fertilizer are essential to ensuring that fertilizer sold to final users presents chemical and physical qualities in the range determined by law. As regards the sampling of fertilizers, the official method currently used in Brazi
Externí odkaz:
https://doaj.org/article/f90b31c45cc14c108d3803cd561c2683
Autor:
Bruno Maia Abdo Rahmen Cassim, Izaias Pinheiro Lisboa, Marcos Renan Besen, Rafael Otto, Heitor Cantarella, Tadeu Takeyoshi Inoue, Marcelo Augusto Batista
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 48 (2024)
ABSTRACT From 1913 onwards, the global situation changed from a scenario of nitrogen (N) scarcity to an abundance of ammonia (NH3) produced synthetically via the Haber-Bosch process. Several N compounds have been synthesized since then, with urea bec
Externí odkaz:
https://doaj.org/article/7c7323a165b44263a9f85fdaea4ff7d7
Autor:
Rafaela Alenbrant Migliavacca, Risely Ferraz-Almeida, Marcos Henrique Feresin Gomes, Eduardo de Almeida, Hudson Wallace Pereira de Carvalho, Rafael Otto
Publikováno v:
Pesquisa Agropecuária Brasileira, Vol 57 (2022)
Abstract The objective of this work was to evaluate the efficiency of sources and rates of soluble (MnSO4.H2O) and insoluble (MnCO3) manganese on the processes of uptake, transport, and redistribution of this nutrient in soybean, as well as on crop y
Externí odkaz:
https://doaj.org/article/58f7a9b28be24c37906ee77f63f35bc0
Autor:
Cristiane Prezotto Silveira, Fernando Dini Andreote, Risely Ferraz-Almeida, Jardelcio Carvalho, John Gorsuch, Rafael Otto
Publikováno v:
Agronomy, Vol 13, Iss 2, p 581 (2023)
Common fertilizers present a low use efficiency caused by nutrient losses (e.g., through leaching, volatilization, adsorption, and precipitation in solution as well as through microbial reduction and immobilization) that create a significant limiting
Externí odkaz:
https://doaj.org/article/bb2b01f9dd494d38ab727b57bfce3cee
Publikováno v:
Agriculture, Vol 13, Iss 2, p 347 (2023)
The sugarcane area expansion is promoting peanut production where the peanut is planted during the sugarcane reform in soils with low boron (B) content. This study aimed to monitor: (i) the efficiency of B application via soil and foliar on peanut yi
Externí odkaz:
https://doaj.org/article/c58c660b3fba4b40a8327a4fff08670c
Autor:
Filipe Inácio Matias, José Felipe Gonzaga Sabadin, Lílian Angélica Moreira, Marcos Henrique Feresin Gomes, Acácio Bezerra de Mira, Roberto Fritsche-Neto, Rafael Otto
Publikováno v:
Scientia Agricola, Vol 78, Iss 1 (2020)
ABSTRACT New apps have changed the traditional way of learning and teaching; they are also applied as a quickly executed and effective method in agriculture. Soil-app is a web application with a friendly click-point interface built through packages l
Externí odkaz:
https://doaj.org/article/b791dc6619f9437194c22ed1b9afb059
Autor:
Eduardo Zavaschi, Risely Ferraz-Almeida, Letícia Abreu Fária, Rafael Otto, André César Vitti, Godofredo Cesar Vitti
Publikováno v:
Revista Ciência Agronômica, Vol 51, Iss 1 (2020)
ABSTRACT In tropical soils, the efficiency of phosphorus (P) fertilization is low, due to P adsorption on the surface of the clay. Superphosphate complexed with humic acid (SSP+HA) is presented as an alternative for improving P use efficiency and cro
Externí odkaz:
https://doaj.org/article/c28b4da9867146a7aed74bbf3f4e66aa
Autor:
Gabriel Barth, Rafael Otto, Acácio B. Mira, Risely Ferraz‐Almeida, André C. Vitti, Heitor Cantarella, Godofredo C. Vitti
Publikováno v:
Agrosystems, Geosciences & Environment, Vol 3, Iss 1, Pp n/a-n/a (2020)
Abstract Enhanced efficiency fertilizers (EEF) are of interest for sugarcane (Saccharum spp.) production due to the potential to reduce N losses, and improve crop yield and environmental conditions. This study was conducted to determine the effect of
Externí odkaz:
https://doaj.org/article/a264097908cc4542ac8b5933f4105e41
Autor:
Marcos Henrique Feresin Gomes, Rafaela Alenbrant Migliavacca, Rafael Otto, Hudson Wallace Pereira de Carvalho
Publikováno v:
Scientia Agricola, Vol 77, Iss 6 (2020)
ABSTRACT: The utilization of insoluble sources of micronutrients as concentrated suspensions (CSs) is increasing in Brazilian agriculture; however, much information regarding the physicochemical characterization of these products is required to demon
Externí odkaz:
https://doaj.org/article/9701e757ff0b4326aa411b66d31c2965