A decades-old book, still the go-to guide for anyone doing agriculture field trials, is now available in digital form.
It doesn't matter whether the trial is on fertiliser use, efficacy of weed killer or crop yield, Conduct of Field Experiments by PD Lynch explains it all. And it's readable.
It sets out at the beginning the 'Basic requirements for a satisfactory experiment' so that the results discovered are meaningful.
It asks the person contemplating carrying out a field trial to consider if the question being asked is the right one and asked in the right way, if the method is the best given the circumstances and if the results will be accurate and adequate.
The following chapters go into careful detail, with photos, illustrations and tables to help the farmer or researcher carry out the task.