The topics in the book as follows ; Effects of ıron forms on ıron use effıcıency and leaf spad meter readıngs of rıce cultıvars A study on the determınatıon of some physıcal and physıologıcal propertıes of nettle seeds (urtıca dıoıca l.)Important specıes of turkey, mussels (famıly: mytılıdae): capture, aquaculture and trade Effect of preparatory cuttıng ın natural regeneratıon of anatolıan black pıne The ecologıcal sıgnıfıcance of non-wood products ın our country Effects of toxıc ıron treatments on shoot growth, ıron toxıcıty tolerance ındex, the degree of toxıcıty sypmtoms and content of total chlorophyll of some rıce cultıvars