Application of Preservatives to Hay: A Guide to Experimental Methods and Field Techniques

摘要

The report is presented as a standard guide to the use of preservatives on hay in field experiments and for practical hay conservation. The conclusions derived from several years of experimental work at NIAE on the use of propionic acid as a preservative for hay are briefly summarized. Standard field procedures are described for mowing, measuring the moisture content and weight per unit length of the crop, calculating preservative losses, determining the ground speed of the applicator and the preservative flow rate from swath weight and application rate using the nomograph supplied, establishing the optimum bale size and weight to control heating, and checking application rates. The equipment required for field and laboratory work is described in detail.