QUANTITIES OF MANURES WHICH MAY BE USED 



TO THE ACRE. 



Nitra)e of Soda. Potassic Manurc§., 



SulpHaU 

 Ommorvia. 



Quick' 

 Vtme. 



Superphosphate. Basic Sla^. 



The Black Lines indicate Manures that may be Mixed. 

 The Dotted Lines indicate Manures that may not be Mixed. 



Note. — Superphosphates containing an excessive quantity of carbonate 

 of Ume should not be mixed with sulphate of ammonia. 



The calculations refer to typical manures. The corre- 

 sponding quantities of other manures belonging to the same 

 type can be determined by consulting the foregoing chapters. 

 The figures must be varied according to the quality of the soil. 

 For example, poorer soils will generally require i or 2 cwt. more 

 of basic slag than good soil. 



Winter Wheat. — In good soils — Farmyard manure 7 to 8 tons, 

 with addition of 3 to 4 cwt. of basic slag at 30 per cent., and 

 I cwi;. of sulphate of ammonia at seed time and i cwt. of 

 nitrate of soda in spring. 



If coloured bluish-green after winter, none, or only half, 

 of the nitrate needed. 



In poorer soils — 8 to 10 tons of farmyard manure with 

 the addition of 5 to 6 cwt. of basic slag ; ^ to | cwt. of muriate 

 of potash and | cwt. of sulphate of ammonia at seed time, 

 and I cwt. of nitrate of soda in spring. 

 Spring Wheat. — One cwt. of sulphate of ammonia, and half of the 

 quantity of phosphoric acid should be applied as super- 

 phosphate, at seed time ; later i cwt. of nitrate of soda. In 

 poorer soils i cwt. of muriate of potash. The farmyard 

 manure should be applied as soon as possible and a long 

 time before sowing. 



153 



