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Effects of different fertilization on root surface area of turfgrass

Marko Petek ; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za ishranu bilja
Mirjana Herak Ćustić ; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za ishranu bilja
Miroslav Poje ; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za ishranu bilja
Boris Lazarević ; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za ishranu bilja
Tomislav Karažija ; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za ishranu bilja
Marko Ciboci ; Sveučilište u Zagrebu, Agronomski fakultet

Sažetak

Grasses are used to create rich and high-quality lawn. For the production of turfgrass important factor is the well-developed root that supplies the plant with water and nutrient elements, but also when it is well developed and wide spread in depth 3-5 cm allows easier cutting turfgrass stripes of lawn, in order to prevent wasting of soil and packaging, transporting and setting the strips. The majority of grass roots is in between 3-10 cm below the soil surface. Unequal distribution of water and nutrients in the soil causes a change in morphology and distribution of root system. Because of the importance of the root system in the production of turfgrass, the aim of this study was to investigate effects of different fertilization on growth and development of turfgrass. For this purpose, in the company “Horticultura Ćustić” in Botinec, the field fertilization experiment was conducted with turfgrass by Latin square method with five treatments as follows: a) control-unfertilized [cont]; b) 100 g m-2 NPK15-15-15 before sowing [NPK]; c) 100 g m-2 NPK15-15- 15 with 15 g m-2 KAN before sowing, and three applications of topdressing with 15 g m-2 KAN [NPK+KAN]; d) 100 g m-2 NPK15-15-15 with 15 g m-2 ammonium sulfate before sowing and three applications of topdressing with 15 g m-2 ammonium sulfate [NPK+AS]; e) 100 g m-2 NPK15-15-15 with 10 L m-2 Lithuanian acid peat before sowing [NPK+peat]. Grass seed was sown directly on the soil, and pressed into the ground with a roller. Root sampling was conducted on four occasions with cylindrical probe 5 cm in diameter stainless inox, created precisely for this purpose, in 3 depths. The root was separated from the soil particles, scanned on Epson Perfection V700 scanner driven by WinRhizo software. Data were analyzed using the statistical software package SAS System for WinVer.9.1. Based on the results of research on root surface area we suggest fertilizing with 100 g m-2 15-15-15 NPK in combination with 15 g m-2 KAN before sowing and monthly topdressing with 15 g m-2 KAN because such fertilization can provide enough nutrients for good quality and beautiful appearance of turfgrass revealed by visual diagnosis in the field.

Ključne riječi

fertilization; lawn; root surface area; WinRhiz

Hrčak ID:

162729

URI

https://hrcak.srce.hr/162729

Datum izdavanja:

17.12.2013.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.376 *