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| NAVA,GILBERTO; CIOTTA,MARLISE NARA; BRUNETTO,GUSTAVO. |
| ABSTRACT The aim of this work was to evaluate the effects of orchard fertilization with increasing rates of phosphorus (P) on yield and critical levels of P in the soil and in the leaf of ‘Fuji’ apple trees. The experiment was conducted in São Joaquim, state of Santa Catarina, southern Brazil, from 2010 to 2015, in an Inceptisol soil. The three apple orchards were planted in 2004 with the Fuji cultivar grafted on Marubakaido/ M9 rootstock and grown under a high-plant-density system (1984 trees ha-1). Annual fertilizer levels of 0, 40, 80, 120 and 160 kg ha-1 of P2O5 (as triple superphosphate) were applied to the soil surface, without incorporation, in a randomized block design with five replicates. In the first and last years (2011 and 2015), soil samples... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica Borkh; Yield; Critical level; Leaf analysis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000103001 |
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| BRUNETTO,GUSTAVO; FERREIRA,PAULO ADEMAR AVELAR; MELO,GEORGE WELLINGTON; CERETTA,CARLOS ALBERTO; TOSELLI,MORENO. |
| ABSTRACT The application of foliar fungicides in vineyards and orchards can increase soil concentration of heavy metals such as copper (Cu) and zinc (Zn), up to the toxicity threshold for fruit trees and cover crops. However, some agronomic practices, such as liming, addition of organic fertilizers, cultivation of soil cover crops and inoculation of young plants with arbuscular mycorrhizal fungi can decrease the availability and the potential of heavy metal toxicity to fruit trees. This review aims to compile and present information about the effects of increasing concentrations of heavy metals, especially Cu and Zn, on soils cultivated with fruit trees and provides some agronomic practices of remediation. Information about the sources of heavy metals... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trace element; Phytotoxicity; Growth; Fruit trees. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000203001 |
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| GATIBONI,LUCIANO COLPO; KAMINSKI,JOÃO; PELLEGRINI,JOÃO BATISTA ROSSETTO; BRUNETTO,GUSTAVO; SAGGIN,ADAIR; FLORES,JOÃO PAULO CASSOL. |
| A pecuária de corte no Estado do Rio Grande do Sul é baseada na utilização de pastagens naturais, que são de baixa produtividade e sazonalidade de produção. O objetivo deste trabalho foi testar o efeito de diferentes fosfatos, solúveis e natural, associados ou não à calagem, no melhoramento de pastagem natural pela introdução de espécies forrageiras de inverno. O estudo foi conduzido na Universidade Federal de Santa Maria, em solo Argissolo Vermelho. Os tratamentos foram: foscal (superfosfato simples + calcário); superfosfato triplo + calcário; superfosfato triplo; hiperfosfato de gafsa; sem adubação fosfatada e sem calcário; testemunha de pastagem natural. Com exceção do último, todos os tratamentos receberam adubação potássica, nitrogenada e introdução... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calagem; Fosfatos; Produtividade; Gramíneas; Melhoramento de pastagens. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000800020 |
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| SCHWALBERT,RAISSA; SILVA,LINCON O.S.; SCHWALBERT,RAI A.; TAROUCO,CAMILA P.; FERNANDES,GILLIAN S.; MARQUES,ANDERSON C.R.; COSTA,CAMILA C.; HAMMERSCHMITT,RODRIGO K.; BRUNETTO,GUSTAVO; NICOLOSO,FERNANDO T.. |
| Abstract Abstract: Successive applications of copper fungicides on vines have resulted in increased copper content in vineyard soils over the years. This high copper content has affected the growth of young vines in eradicated vineyards. Thus, the cultivation of annual species for a few years is an alternative to copper phytostabilization, because it would be a good way to decrease copper availability to plants. The aim of this study was to evaluate the physiological responses of different soybean cultivars to copper concentration increase. Four different soybean cultivars were grown under three copper concentrations: 0.5, 20 and 40 μM in nutrient solution. The main outcomes of this study were: i) Cultivar M 6410 IPRO recorded the highest photosynthetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant system; Cash crops; Heavy metal phytostabilization; Photosynthesis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700618 |
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| BRUNETTO,GUSTAVO; NAVA,GILBERTO; AMBROSINI,VÍTOR GABRIEL; COMIN,JUCINEI JOSÉ; KAMINSKI,JOÃO. |
| The aim of this study was to evaluate the response to phosphorus (P) and potassium (K) fertilization and to establish the critical levels of P and K in the soil and in the plant tissue in pear trees. Two experiments were conducted in São Joaquim (SC), Brazil. In experiment 1, the plants received annually the application of increasing rates of phosphate fertilizer (0, 40, 80, 120 and 160 kg P2O5 ha-1), while in experiment 2, increasing rates of potassium fertilizer (0, 40, 80, 120 and 160 kg K2O ha-1) were applied annually. In the two experiments, soil was collected annually from the 0-10, 10-20 and 0-20 cm layers, and the available P (experiment 1) and exchangeable K (experiment 2) content was analyzed. Whole leaves were collected annually, which were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pyrus communis L.; Sufficiency level; Phosphate fertilization; Potassium fertilization; Yield. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452015000200507 |
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| BRUNETTO,GUSTAVO; MELO,GEORGE WELLINGTON BASTOS DE; TOSELLI,MORENO; QUARTIERI,MAURIZIO; TAGLIAVINI,MASSIMO. |
| ABSTRACT Fertilization of temperate fruit trees, such as grapevine ( Vitis spp.), apple ( Malus domestica), and pear ( Pyrus communis) is an important tool to achive maximum yield and fruit quality. Fertilizers are provided when soil fertility does not allow trees to express their genetic potential, and time and rate of application should be scheduled to promote fruit quality. Grapevine berries, must and wine quality are affected principally by N, that regulate the synthesis of some important compounds, such as anthocyanins, which are responsible for coloring of the must and the wine. Fermenation of the must may stop in grapes with low concentration of N because N is requested in high amount by yeasts. An N excess may increase the pulp to peel ratio,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Macronutrients; Micronutrients; Nutritional status; Production; Quality. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452015000401089 |
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