Evaluation and nutrient management of turf grass species
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Date
2019
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Punjab Agricultural University, Ludhiana
Abstract
The present investigations entitled “Evaluation and Nutrient Management of Turf grass Species.” were carried out at Research Farm Department of Floriculture and Landscaping, Punjab Agricultural University, Ludhiana, Punjab during 2018-19 with the objectives to evaluate different turf grass species suitable for different purposes and also to standardize nitrogen requirements for Selection No. 1 grass species. The different species of turf grasses, viz. Cynodon dactylon var. Selection No. 1, Cynodon dactylon var. Tif Dwarf, Cynodon dactylon var. Local tift and other species like Zoysia japonica and Zoysia tenufolia were evaluated for different parameters. The maximum leaf length (3.77 cm), leaf width (2.13 mm), root length (16.10 cm), fresh weight of clippings (123.30 g), dry weight of clippings (61.34 g) and number of mowings (1.85) was recorded in Cynodon dactylon var. Selection No. 1. The highest shoot density in Cynodon dactylon varieties was recorded in Local tift (269.31 shoots/ 100 cm2). Among the Cynodon dactylon varieties Local tift exhibited lowest leaf width (1.34 mm), fresh weight of clippings (5.14 g), dry weight of clippings (3.16 g) and lowest number of mowings (0.28). The leaf length (1.31 cm) and root length (13.33 cm) was found minimum in Cynodon dactylon var. Tif Dwarf and the minimum shoot density (142.56 shoots /100 cm2) was recorded in Cynodon dactylon var. Selection No. 1. Among Zoysia species, Zoysia japonica and Zoysia tenuifolia were at par for leaf length and leaf width, whereas, shoot density (352.06 shoots/ 100 cm2) was recorded in Zoysia japonica. The maximum root length (14.31 cm), fresh weight of clippings (74.23 g), dry weight of clippings (36.24 g) and number of mowings (1.28) was observed in Zoysia tenuifolia. In second experiment, Cynodon dactylon var. Selection No. 1 grass species used to standardize the different level of nitrogen (0, 10, 20 and 30g). It was observed that the application of N @ 30 g resulted in the maximum leaf length (4.72 cm), shoot density (262.75 shoots /100 cm2), fresh weight of clippings (138.41 g), dry weight of clippings (79.77 g) and numbers of mowings (2), however, the maximum leaf width (2.53 mm) was recorded at 20 g N application. The highest root length (19.73 cm) was found with the 10 g N dose. The minimum leaf length (3.66 cm), leaf width (1.99 mm), shoot density (142.91 shoots/100 cm2), root length (16.77 cm), fresh weight of clippings (123.46 g), dry weight of clippings (65.34 g) and number of mowings (1.33) was recorded in control (0 g N) due to less growth. It was concluded that Cynodon dactylon var. Selection No. 1 performed best for all morphological parameters and suitable for commercial cultivation. Cynodon dactylon var. Local tift having ability to form cushion or soft turf grass, best for low maintenance and suitable for smaller area. The second experiment, it was concluded that N application @ 30 g/ square meter improved the turf quality with respective to leaf length, shoot density, fresh weight of clippings, dry weight of clippings and numbers of mowings.
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