Source material

A number of data sets are provided to accompany this case study. CS16Data1a contains final crop yield and mineral composition data etc. collected in the Ukulinga field experiment and CS16Data1b data for the Umbumbulu field experiment (Study 1). CS16Data1c and CS16Data1d contain monthly data on plant performance respectively at the two sites. Data collected during the storage experiment (Study 2) are stored in CS16Data2.

Only the data set CS16Data1a will be used to illustrate the methods of analysis. The other data sets are provided for use in some of the Study questions.

Some of the variables originally recorded in the experiments have been excluded to simplify the data sets for the purposes of this case study. Thus, several of the mineral composition variables are omitted from CS16Data1a and CS16Data1b. CS16Data2 contains just measurements for specific gravity.

CS16Doc1ab and CS16Doc1cd describe the factors and variables contained in CS16Data1a, CS16Data1b and CS16Data1c and CS16Data1d, respectively. CS16Doc2 describes the contents of C16Data2.