Page 16 Advertisement 1

New Zealand Journal of Agriculture, Volume 66, Issue 1, 15 January 1943, Page 16

Manuring Sensibly! TIME Tells Its Story with BETTER NON-ACID MANURES Egg! Many soils of high-rainfall parts of New Zealand, lack Lime and contain ™ large quantities of Iron and Alumina (clay), which rob the farmer of about , four-fifths of every ton of water-soluble Phosphates spread on these soils; a Basic Slag contains, among other minerals, large quantities of a non-acid chemical compound known as Calcium-Silico- Phosphate which, it' is claimed, ' has the power of unlocking these dormant minerals from the soil. The phosphates of a Basic Slag cannot be locked up by soils because they are already combined in a form easily digested by the root acids as they need them. ■I Over 70% of the ash of grass, wood or other organic matter is silica; this is the main reason why humus and compost manures produce such extraordinary ' \ growth in plants and trees; properly oxidised Basic Slags, too, contain large quantities of valuable silica—in a form that is SOLUBLE in the natural acids of plants and soil. ■ This is the reason why, in the high rainfall districts of 30 inches or more, Basic Slags— those of low phosphate content —give good results. HESKETT SLAG Made in New Zealand for New Zealand soils. Finely ground and packed 18 bags to the ton, it is delivered f.o.r. Huntly, Waikato. Obtainable from merchants and Dairy Companies or from the Chief Distributors: Arthur Yates & Co. Ltd. Whangarei AUCKLAND New Plymouth