Formerly En-Mag. Popular with growers of Leeks and onions. Releases nutrients at a steady rate over long periods. Used also when preparing the ground before planting of trees, shrubs and herbaceous borders and also useful in compost for slow growing subjects e.g. Bonsai.
Rate of use: 1-4oz per sq.yd (34-136g per sq. yd) per tree; 1-2 oz per sq. yd (34-68g per sq. yd) per rose bush; 2-4 oz per sq. yd. (68-136g per sq. yd) generally.
N.P.K. Fertilizer 5-19-10-5
Nitrogen (N) 5%
Phosphorous Pentoxide (P2O5) 19% (P8.3%)
soluble in water 2% (P0.9%)
insoluble in water 17% (P7.4%)
Potassium Oxide (K2O) 10.5% (K8.7%)
Magnesium Oxide (MgO) 14.2% (Mg 8.5%)