The effect of Stockosorb® 500 Micro on the growth-production process of Festuca arundinacea Schreb.

Abstract

The aim of this paper was to determine the effect of different doses of Stockosorb® 500 Micro on the growth-production process of Festuca arundinacea Schreb. cv. Koreta. The pot experiment was realized in laboratory conditions in year 2010. There were used pots with volume 2 dm 3 and area on top 0.014 m 2 and 3 levels of the amount of Stockosorb® 500 Micro in experiment: 0 g.m-2 , 50 g.m-2 and 100 g.m-2. Quantity of seeds was 1.18 g per pot (i. e. 40,000 seeds per m 2). Each treatment had 4 replications. Irrigating of pots was with 150 ml water per pot 2 times a week. Results of observations showed a statistically significant effect of Stockosorb® 500 Micro on daily intensity of growth to the height (p = 0.040), the total harvest of aboveground phytomass (P = 0.000) and nonsignificant effect on the intensity of the production of aboveground phytomass (P = 0.084). Stimulatory effect on indicators of the growth-production process of Festuca arundinacea Schreb. cv. Koreta had only Stockosorb® 500 Micro at dose 50 g.m 2. Application of 100 g.m 2 of Stockosorb® 500 Micro inhibited growth and production of that grass species, but with lower variability of average daily gain of height (ADGh), average daily gain of weight (ADGw) and thickening lawn index (TLI) values. Lower daily intensity of growth and phytomass production and higher turf density (expressed as thickening lawn index) is positively evaluated from the viewpoint of lawn management.