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.
An object of class
data.frame with 15 rows and 3 columns.
nrate Nitrogen Rate
Petersen, R. G. (1994). Agricultural Field Experiments: Design and Analysis. CRC Press.
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