CHANGE TO CHALLENGE FERTILIZERS Proven brand name … brand new service!* *NOW FOUR N.Z. FARMERS' FERTILIZER CO. LTD PLANTS at Morrinsville, New Plymouth and two at Auckland — your assurance of complete maturity and prompt delivery, even during the busiest part of the season. The CHALLENGE range of Agricultural Fertilizers includes: HORMOPHOS CHALLENGE D.D.T. SUPER MIXT ‘FRE-FLO’ MURIATE OF POTASH CHALLENGE SERPENTINE SUPER CHALLENGE AERIAL SUPER CHALLENGE POTASSIC SERPENTINE SUPER CHALLENGE SUPERPHOSPHATE and for special areas: Copperised Mixtures Molybdic Mixtures Cobaltised Mixtures Dieldrin Mixtures You can increase farm production two ways with intelligent, regular use of Challenge Fertilizers. Each designed for a specific job, Challenge Fertilizers help you improve existing crops and turn waste land into productive farm land. Prove for yourself the superiority of Challenge Fertilizers. Constant development and practical research have produced a range of balanced mixtures that give positive results and help you step up farm production. CHALLENGE SPECIAL MIXTURES The four N.Z. Farmers' Fertilizer Co. Ltd. plants are well-equipped to handle special mixtures that can be made up to counteract deficiencies in any type of soil. These special mixtures cost a little more but are well worth it when dealing with conditions that do not come within the average range of agricultural fertilizers. Enquiries may be made through your usual supplier, or by contacting N.Z. Farmer's Fertilizer Co. Ltd. direct. AVAILABLE BULK OR BAGGED FROM YOUR REGULAR SUPPLIER Now manufactured only by N.Z. FARMERS FERTILIZER CO. LIMITED INCORPORATING THE CHALLENGE PHOSPHATE CO. LTD. AND THE KIWI FERTILIZER CO. LTD. AUCKLAND - MORRINSVILLE - NEW PLYMOUTH