According to Yitnosumarto (1993), experimental design is regulation that used for getting a data in an experiment. Experimental design method used as a regulation to allocated treatment into experimental units. In experimental design, the purpose is to measure treatment influence, exc. fertilizer composition with different dosis to the kind of spesific variety, treatment as like different kind of music to the group of study, and others.

Yitnosumarto, S. 1993. Percobaan Perancangan, Analisis dan Interpretasinya. P.T. Gramedia Pustaka Utama. Jakarta.