DETERMINATION OF NUTRITIONAL STATUS OF GRASS IN SOME PARKS WITH SOIL AND PLANT ANALYSIS: THE CASE OF ESENLER COUNTY, ISTANBUL PROVINCE

Abstract

In this research, soil and plant samples were taken from 20 parks which have a grass area and located in Esenler county of Istanbul, were analysed of macro elements (N, P, K, Ca and Mg) and the nutritional status of the grass was evaluated by statistical analysis. The average N content of the soil samples is 0.102%, according to this value they were classified as sufficient levels of nitrogen. On the other hand, the average P, K, Ca and Mg contents of soils were 11.45, 67.45, 7 978.91 and 726.18 mg kg(-1). According to the results of the statistical analysis, the relationship between all parameters analyzed between the soil used in the research is significant (P <0.01). Total N contents of plant samples were determined as the lowest level 20.29% and the highest level 31.69%. Then P, K, Ca and Mg contents of the plant samples from macro elements an average value were respectively 0.46%, 3.06%; 0.88% and 0.36%. The relationship between all parameters analysed of grasses used in the research is statistically significant (P <0.01). According to the analysis of soil and plant in the grass areas in the parks, the applications such as fertilization, irrigation, spraying is extremely important in terms of healthy growth and longevity of grass. As a common opinion, the application of N, P and K is usually carried out in order to fertilization of the parks in Istanbul. Therefore, essential macro elements were taken into consideration in this study.