16 research outputs found

    Thatch Control in Home Lawns.

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    2 p

    Bermudagrass Management on Golf Courses in Texas.

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    20 p

    Physical Characteristics of Soil Mixtures Used for Golf Green Construction 1

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    Arsenic Pollution from Underdrainage and Runoff from Golf Greens 1

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    EficĆ”cia do herbicida msma na erradicaĆ§Ć£o de coqueiros infectados com resinose Efficacy of the Herbicide MSMA in Eradicating Coconut Trees Infected with Stem-Bleeding

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    Objetivou-se com este trabalho identificar a menor dose do herbicida MSMA e a melhor forma de aplicaĆ§Ć£o, visando Ć  erradicaĆ§Ć£o de coqueiros infectados com resinose. O experimento foi realizado no municĆ­pio de NeĆ³polis-SE, no perĆ­odo de julho a agosto de 2007, utilizando plantas do cultivar AnĆ£o-Verde, com 11 anos de idade. O delineamento experimental foi o inteiramente casualizado, com cinco repetiƧƵes, em esquema fatorial 3 x 2 + 1, sendo trĆŖs doses do herbicida MSMA (14,4; 21,6; e 28,8 g por planta), duas formas de aplicaĆ§Ć£o dos tratamentos herbicidas (produto injetado no estipe em um furo de 25 cm de profundidade e 5 cm de diĆ¢metro, localizado a 1,0 m de altura; ou a dose dividida em dois furos de 25 cm de profundidade e 5 cm de diĆ¢metro, sendo um a 0,5 m e o outro a 1,0 m de altura), mais um tratamento controle sem aplicaĆ§Ć£o. O herbicida foi injetado sem diluiĆ§Ć£o, usando uma seringa graduada, imediatamente apĆ³s a abertura dos furos. ApĆ³s a aplicaĆ§Ć£o dos tratamentos, realizou-se o fechamento dos furos com argila umedecida. As avaliaƧƵes de controle foram realizadas aos 7, 14, 21 e 28 dias apĆ³s a aplicaĆ§Ć£o dos tratamentos. A dose de 21,6 g por planta de MSMA localizada em apenas um furo foi eficiente na erradicaĆ§Ć£o dos coqueiros, proporcionando aos 28 DAA controle acima de 95%, impedindo qualquer possibilidade de recuperaĆ§Ć£o das plantas.<br>The objective of this work was to identify the minimum MSMA dose needed and the best way to apply it to chemically eradicate coconut palm trees affected by stem-bleeding. The experiment was carried out in Neopolis, Sergipe from July to August 2007. The coconut tree variety green-dwarf had been planted 11 years ago in the area The experiment was laid out in a completely randomized design with five replicates and the treatments were arranged in a 3 x 2 + 1 factorial scheme, with three herbicide doses (14.4, 21.6 and 28.8 g per plant), two modes of herbicide application (entire dose injection in the stem in a 25 cm deep x 5 cm diameter hole, located at 1 m height; or injection of the product splitting the dose between two 25 cm deep x 5 cm diameter holes, one at 0.5 m height and the other at 1.0 m height) plus an additional control treatment with no herbicide application. Undiluted herbicide was applied with a graduated syringe immediately after the drilling of the holes. After herbicide injection, the holes were filled with moist clay. Four coconut eradication evaluations were carried out at 7, 14, 21 and 28 days after application (DAA) of the MSMA treatments. The application of 21.6 g MSMA per plant, in a single hole, was efficient in eradicating the coconut palm trees, promoting a control above 95% and precluding any possibility of plant recovery
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