Fertirrigação ou fertilizantes de liberação gradual no manejo de gramados esportivos
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Data
2019-08-23
Autores
Kamimura, Luciana Maira Tibães
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O gramado esportivo requer cuidados cautelosos para apresentar bom desenvolvimento e “jogabilidade”. O tipo de fertilizante e a forma de aplicação deste interferem diretamente em sua qualidade, para isso, é necessário obter informações sobre o método mais adequado da adubação. O objetivo com o presente trabalho foi de comparar fertilizantes de liberação gradual, e fetirrigação, com a adubação convencional à fim de obter maior qualidade de grama Zeon e Celebration. O experimento foi conduzido na área experimental da Faculdade de Ciências Agronômicas – FCA/UNESP, Campus de Botucatu (SP). O delineamento foi em blocos ao acaso, em parcelas subdivididas, com grama Zeon e Celebration, como parcela principal, e cinco manejos de adubação (1. sem adubação; 2. fertirrigação; 3. adubação com fertilizantes convencionais; 4. adubação com fertilizante de liberação lenta; 5. adubação com fertilizante de liberação controlada), nas subparcelas, e quatro repetições, no período de janeiro a junho, sendo realizadas as avaliaçoes a cada quinze dias. As características avaliadas foram a Taxa de Cobertura Verde (TCV), Índice de Coloração Verde Escuro (ICVE), Índice de Grama, Índice de Clorofila, altura, Fitomassa de Matéria Seca (MS), matéria seca do estolão e rizoma e da raíz, comprimento da raíz,química do solo, solução do solo, e o teor e exportação de nutrientes do gramado. Os diferentes manejos de adubação apresentaram comportamento distintos entre si e entre as cultivares de grama. A grama Zeon apresentou maior crescimento, porém, a Celebration obteve maior coloração verde escuro e acumulo de nutrientes.
The sports turfgrass requires cautious care to show good development and "playability". The type of fertilizer and the way of application of this fertilizer directly interfere in its quality, for this, it is necessary to obtain information on the most appropriate method of fertilization. The objective of the present work was to compare fertilizers of gradual liberation and fetirrigation with the conventional fertilization in order to obtain higher quality of Zeon grass or Celebration grass, as well as its economical viability. The experiment was conducted in the experimental area of the Faculty of Agronomic Sciences - FCA / UNESP, Botucatu Campus (SP). The design was in randomized blocks, in subdivided plots, with Zeon grass and Celebration grass, as main plot, and five managements of fertilization (1. without fertilization, 2. fertirrigation, 3. fertilization with conventional fertilizers, 4. fertilization with fertilizer of 5. fertilization with controlled release fertilizer), in the subplots, and four replications, from January to June, with the evaluations being carried out every fifteen days. The results were evaluated using the Green Index Rate (TCV), Dark Green Color Index (ICVE), Grass Index, Chlorophyll Index, height, Dry matter Phytomass (DM), stolon dry matter and rhizome and root, root length , soil chemistry, soil solution, and the content and export of nutrients from the lawn. The different fertilization managements presented different behavior among themselves and among the grass cultivars. Zeon grass showed higher growth, but Celebration had higher dark green color and nutrient accumulation.
The sports turfgrass requires cautious care to show good development and "playability". The type of fertilizer and the way of application of this fertilizer directly interfere in its quality, for this, it is necessary to obtain information on the most appropriate method of fertilization. The objective of the present work was to compare fertilizers of gradual liberation and fetirrigation with the conventional fertilization in order to obtain higher quality of Zeon grass or Celebration grass, as well as its economical viability. The experiment was conducted in the experimental area of the Faculty of Agronomic Sciences - FCA / UNESP, Botucatu Campus (SP). The design was in randomized blocks, in subdivided plots, with Zeon grass and Celebration grass, as main plot, and five managements of fertilization (1. without fertilization, 2. fertirrigation, 3. fertilization with conventional fertilizers, 4. fertilization with fertilizer of 5. fertilization with controlled release fertilizer), in the subplots, and four replications, from January to June, with the evaluations being carried out every fifteen days. The results were evaluated using the Green Index Rate (TCV), Dark Green Color Index (ICVE), Grass Index, Chlorophyll Index, height, Dry matter Phytomass (DM), stolon dry matter and rhizome and root, root length , soil chemistry, soil solution, and the content and export of nutrients from the lawn. The different fertilization managements presented different behavior among themselves and among the grass cultivars. Zeon grass showed higher growth, but Celebration had higher dark green color and nutrient accumulation.
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Palavras-chave
Adubação, Bermudas, Campos esportivos, Fertilization, Zoyzias, Bermuda, Sports fields