so 



FLUE DUST EXPERIMENTS. 



Mangolds. Stackyard Field, 1918. 



There were li^ps in these plots 



Best Rows"' are rows of full lentjth with all plants firowin^;. 



Potatoes. West Barnfield, 1918. 



Plot. 



Manures per Acre. 



Weif'ht 

 per Acre 



Tons. 



Flue Dust. «rade 1, contains 2'2l p.c. Potash. Fine Dust, rtrade 3. contains 890 p.c. Potash. 



.. 2. ,. 5'85 .. ., extracted, ,, 7'37 



Sulphate of Potash contains .SO'24 p.c. Potash. 



The quantities applie'l were calculated on the basis of 1 cwt. Sulphate of Potash 



'49 p.c. Potash) per Acre. 



>'oTF,— All Plots received a dressinj? of r)unR at the rate of 10 tons per acre, 



