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| Author(s): |
Patrick Luan Ferreira dos Santos
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Botucatu. 2022-10-05. |
| Institution: | Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agronômicas. Botucatu |
| Defense date: | 2022-07-29 |
| Advisor: | Roberto Lyra Villas Bôas; Godoy Leandro José Grava de |
| Abstract | |
'Tifton 419' hybrid bermuda grass is widely used in sports fields, due to its resistance to trampling, thin leaves that give smoothness to the turf and cushion the impact of players and fast recovery from damage caused by the game. However, turfgrasses areas need proper fertilization and irrigation management for their development and to provide a good practice of the sport. Thus, the objective of this work was to evaluate the management of irrigation and nitrogen doses in the development of 'Tifton 419'. The experimental design was in a factorial scheme (2x5), with two irrigation managements (daily irrigation and irrigated every two days) and five doses of N (source ammonium sulphate) (0; 281.25; 421.88; 703.13 and 843.75 kg N ha-1 year-1), with 4 repetitions. Each plot was 25m2 (5.0 x 5.0m), with 1.0m of border. The doses of N were divided based on the requirement of the crop (15% winter, 25% spring, 35% summer, 25% autumn). The evaluations were: development, aesthetic quality and playability of the turfgrass, and physical and chemical evaluations of the soil. It was observed that irrigation every two days maintains the aesthetics and playability without interfering with the development of the grass. Also, doses that are too low or too high are detrimental to turf quality. Thus, it is concluded that the use of dose of 421.88 kg N ha1 year-1 split in 12 times respecting the percentage for each season (15% winter, 25% autumn, 35% summer and 25 % spring) and using ammonium sulfate as a source, combined with a frequency of irrigation every two days is recommended for the development of 'Tifton 419' bermuda grass (AU) | |
| FAPESP's process: | 19/14670-4 - Management of irrigation and nitrogen doses in the development of 'Tifton 419' |
| Grantee: | Patrick Luan Ferreira dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |