Page 3 Advertisements Column 4

Ashburton Guardian, Volume XLVI, Issue 10457, 25 July 1925, Page 3

mm ) The facts and figures in this advertisement are from an article on Manure Tests by Messrs. P. E. Ward, H.D.A., and A. W. Hudson, B.Agr., B.Sc, which appeared in the "N.Z. Journal of Agriculture," June 20th, 1926. The value of the hay has been based on the nominal figure of £5 per ton. Should this be considered too great, the substitution of a reasonably lower figure will still show handsome profits from top-dressing with "Rockland" Superphosphate. Effect of 1923 Top-Dressings on Yields in 1924 No. of'Plots Yield of Hay Increase in Hay oyer Value of Difference at Cost of Manure per acre N©t * l*Ofl* compared. per acre. No Manure per acre. £5 per ton. at Country Station. nev* afffft " Bockland " Superphosphate Basic Super Basic Super and Blood Super and Blood £ s. d. 2 15 1 2 13 0 1 7 11 1 11 4 0 14 6 0 13 6 0 16 8 0 17 5 1 19 on; o 13 n Effect of 1924 Top-Dressings on same ground, i.e. a second application of manure No. of Plots •ompared. Double " Rockland " Superphosphate Double Basic Super .. Double Basic Super and Blood Double Super and Blood Yield of Hay per acre. Total Cost of Manure per Increase in Hay over Value of Difference at acre at Country Stations No Manure per acre. ;S5 per ton. for both Applications, 1923-1924. £ s. d. 4 17 3 3 19 8 2 13 6 3 6 2 £ s. d. 19 0 17 0 1 16 8 1 18 5 Net Profit per acre 212 8 O 16 lO General Conclusions Applying to 1924 Experiments I.—ln every case, with one exception (basic super and blood), the actual cost of manures at country stations had been more than paid for by the increase in one crop of hay. 2.—lf the growth of grass represented by one crop of hay is regarded as half the total growth for the year the net profit resulting from the application of the fertilizers is practically double tlaat shown in the tables. 5.\ —The net profit resulting from the application of manures was always slightly in favour of "Rockland" Superphosphate or Basic Super. 4.—Excepting in the case of basic super and blood, the application of manures in 1924 on the manured plots of 1923 has left a good margin of profit in the single crop of .hay. The increases due to the second application, however, have not been so great as those due to the first dressing. With the aid of a damp growing season in 1924 the residual effect of the 1923 manures was very evident. 5.-—As instanced by the grazing during the winter and early spring of 1924, the manures have had a decided effect on the palatability of tim pastures. 6.—The enhanced fertility due to the mom vigorous development of clovers which generally accompanies "Rockland" Superphosphate manuring must be considerable, although its actual value can* not be measured. 7.—The belated effect of the 1923 dressings indicates that, owing to the possibility of dry-weather conditions, top-dressing should be done in the viia~ ter rather than in the early spring. , T4u;rj.im4-.u Si If 4:?:1 for 'Rockland' Superphosphate should be placed without delay "ROCKLAND " Superphosphate is procurable through all Stock and Station Agents and Produce Merchants. Manufacturers: Kempthorne, Prosser & Co.'s New Zealand Drug Coy. Ltd. AGRICULTURAL CHEMISTS HIGH STREET, CHRISTCHURCH MORE STOCK'

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