The effects of usage of fertilizations and irrigation on iris (Iris germanica L.) rhizome yield

Abstract

In this paper, the effects of usage of different fertilizations amounts on fresh iris rhizome yield were presented. As the other factor of this experiment, the two ways of growing: dry cultivation and drip irrigation were investigated. Researches were conducted on marsh dark soil on experimental field of Institute for Medicinal Plant Research 'Dr Josif Pančić' in Pančevo. Experiment was set up by method of completely random block system in four repetitions and the size of basic parcel was 10 m2. In this trial there was 3 variants of fertilizations (200 kg/ha NPK 15:15:15, 400 kg/ha and 600 kg/ha) comparing to control parcel which hadn't been fertilized. The highest fresh iris rhizome yield was obtained with variant of 600 kg/ha and the lowest was on the control parcels. All variants of fertilization which were watered by drip irrigation had considerable higher yields then variants with dry cultivation. .

Ispitivan je uticaj primene različitih doza mineralnog đubriva na prinos svežih rizoma perunike u suvom ratarenju i navodnjavanju sistemom 'kap po kap'. Ogled je postavljen na polju Instituta za proučavanje lekovitog bilja 'Dr Josif Pančić' u Pančevu na zemljištu tipa ritska crnica, po slučajnom blok sistemu u četiri ponavljanja. Veličina osnovne parcele bila je 10 m2. Primenjene su tri varijante đubrenja (200 kg/ha, 400 kg/ha i 600 kg/ha NPK 15:15:15 ) i kontrola (bez đubrenja). Najveći prinosi svežih rizoma perunike ostvareni su u varijanti đubrenja od 600 kg/ha, dok je najmanji prinos bio na kontrolnim (neđubrenim) parcelama. Za sve varijante đubrenja parcele navodnjavane sistemom 'kap po kap' imale su značajno veći prinos svežih rizoma perunike. .