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| Telles,Camila C; Freitas,Luciana M de; Junqueira,Ana Maria R; Mendonça,Renata S de. |
| ABSTRACT Integrated pest management (IPM) strategies are among the factors promoting plant resistance to pests, and silicon application may increase this resistance. Thus, the aim of this research was to evaluate the control of diamondback moth (DBM), Plutella xylostella (Lepidoptera, Plutellidae) through foliar application of silicon in cabbage crops. The experiment was conducted in the vegetable producing area of Água Limpa Farm, Universidade de Brasília, Distrito Federal, Brasil. The experimental design was of randomized blocks with nine treatments and four replicates, totaling 36 plots. The applied treatments consisted of Agrosilicon® (10.5% Si) (T1), Sifol® (12% Si) (T2), deltamethrin 25 g L-1 (Decis® 25 EC) (T3), Bacillus thuringiensis, 33.60 g L-1... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brassica oleracea var. capitata; Plutella xylostella; Bacillus thuringiensis; Insecticides; Mechanical resistance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400390 |
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| Silva,Reginaldo Barboza da; Dias Junior,Moacir de Souza; Iori,Piero; Silva,Francisca Alcivânia de Melo; Folle,Sergio Mauro; Franz,Claudio Alberto Bento; Souza,Zigomar Menezes de. |
| The objective of this work was to develop uni- and multivariate models to predict maximum soil shear strength (τmax) under different normal stresses (σn), water contents (U), and soil managements. The study was carried out in a Rhodic Haplustox under Cerrado (control area) and under no-tillage and conventional tillage systems. Undisturbed soil samples were taken in the 0.00-0.05 m layer and subjected to increasing U and σn, in shear strength tests. The uni- and multivariate models - respectively τmax=10(a+bU) and τmax=10(a+bU+cσn) - were significant in all three soil management systems evaluated and they satisfactorily explain the relationship between U, σn, and τmax. The soil under Cerrado has the highest shear strength (τ) estimated with the univariate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cohesion limits; Machine-ground interaction; Mechanical resistance; Precompression stress; Soil compaction; Soil physical quality.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000100082 |
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| Mahl, Denise; UEM; Silva, Reginaldo Barboza da; UNESP; Gamero, Carlos Antonio; UNESP; Silva, Paulo Roberto Arbex; UNESP. |
| O objetivo deste trabalho foi avaliar a influência da operação da escarificação ao longo do tempo sobre a estrutura de um solo em plantio direto, assim como os seus efeitos sobre a produtividade do milho e a formação de cobertura vegetal. O trabalho foi conduzido em um NITOSSOLO VERMELHO no município de Botucatu, São Paulo, Brasil. O delineamento experimental foi o de blocos casualizados em esquema de parcelas subdivididas, sendo as parcelas o fator manejo do solo (em plantio direto e em escarificação) e as subparcelas o fator período de avaliação (quatro e 18 meses após a escarificação) com quatro repetições por tratamento. Os resultados indicaram que, após o período de quatro meses, a escarificação reduziu significativamente a resistência do solo à... |
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Palavras-chave: 5.02.01.07-7 Solos Florestais plantio direto; Resistência mecânica; Cobertura vegetal; Cultura do milho no-tillage; Mechanical resistance; Vegetable covering; Corn culture. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5976 |
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| Lins,Bruno Testoni; Rahal,Sheila Canevese; Louzada,Mário Jefferson; Dalmas,José Carlos; Selmi,André Luis. |
| The present study aimed to evaluate a modification of the stabilization method of the tibial tuberosity advancement technique (TTA), originally described for stabilization of the cranial cruciate deficient stifle. Ten adult mongrel dogs with weights ranging from 25 to 30kg were used. After euthanasia, the hind-limbs were divided into two groups: G1 - test (n=10), and G2 - control (n=10) represented by the contra lateral limb. The test group was submitted to the modified TTA technique, stabilized by one shaft screw in craniocaudal position and a titanium cage inserted at the osteotomy site. The position of the patellar tendon, 90° in relation to the tibial plateau, and the correct position of all implants were confirmed radiographically after surgery.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tibial tuberosity advancement; Dog; Cranial cruciate rupture; Mechanical resistance. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000200023 |
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