Management of the ratoon cane is important because the bulk of cane supply in any one year is from ratoon crops. This represents about 75% to 80% of cane supplied to Queensland mills. The length of the ratoon cycle varies, but a plant crop and three ratoon crops are typical for the Queensland industry. The
Cal-Gran and Cal-Gran blends provide a less volatile source of nitrogen and are ideally suited for ratoon cane blocks where fertiliser is surface applied to green cane trash blankets. The nitrogen in Cal-Gran is present in two forms, nitrate nitrogen (7.4%) and ammonium nitrogen (16.5%), making it less susceptible to volatilisation losses than urea. Cal-Gran
