Petersen (1994, p. 125) describes an experiment conducted to assess the effects of five different quantities of N-fertiliser (0, 35, 70, 105 and 140 kg N/ha) on root dry matter yield of sugar beets (t/ha) with three complete replications laid out in three randomized complete blocks. One objective of this experiment is to determine the amount of fertilizer maximizing yield. Petersen, R.G. (1994). Agricultural field experiments. Design and analysis. New York: Marcel Dekker.
data(beet)
An object of class data.frame
with 15 rows and 3 columns.