On-farm research offers many opportunities to understand the effectiveness of various management practices and products. However, how these trials are designed can alter the observed results. 
This guide summarizes the concepts of experimental design and how those concepts are important in conducting field trials and understanding their results. It also describes specific examples of trial design and explains how to collect data relevant to vineyard research. Simple statistical tests that are used to help interpret results are also explained. 
On-Farm Vineyard Trials: A Grower’s Guide. (PDF Download Available). Available from: www.researchgate.net