The bales were dropped in November 2017. The red arrow represents the average predominant wind direction (between NW and NNW), in relation to the top end of the belt. Bales to the south of the line are in the portion of the paddock. As depicted, there was greater bale density in the sheltered area compared to the unsheltered area of the paddock with a 3-fold increase in bale density in the sheltered area, and an estimated value of the shelter to the hay production of over $1,000. The results are an indication of the benefits of shelter but do not form a definitive assessment of the shelter effect on hay production. This is because it was a one-off measure and uncontrolled factors such as baler path and how far the hay was moved from the point of growing to the point of bale drop introduce uncertainty.
Daniel Mendham, Martin Moroni, David Bower, Arthur Lyons, CSIRO Land and Water).