610 



Agricultural Gazette of N.S.W. 



[Sep. 2, 1920. 



For the first cutting the crop was irrigated in August and October; fur 

 subsequent crops only one watering was given. In all, seven cuts were 

 obtained, extending over a period of seven months. 



Basic superphosphate gave an extra yield of 2 tons 11 cwt. per acre, and 

 superphosphate an increase of 1 ton 14 cwt. 1 qr. P7 gave an increase of 

 only 3 cwt. Following were the costs of these fertilisers : — 



2 cwt. basic superphosphate at 8s. 3d. per cwt. cost 

 2 cwt. superphosphate at 6s. 3d. per cwt. cost 

 2 cwt. P7 at 9s. 3d. per cwt. cost 



The increases in yield and resultant profits after deduction of the cost of 

 the fertiliser were as follows : — 



s. d. 

 16 6 

 12 6 



18 6 



Fertiliser. 



Increase in 

 Yield. 



Valise of 

 Increase. 



Profit. 



Basic superphosphate 

 Superphosphate ... 



£ s. d. 



30 12 



20 8 



1 16 



£ s. d. 



29 13 6 



19 15 6 



17 6 



In estimating the profit, hay was valued at £12 per ton. This is con- 

 sidered a fair average for the past season ; in the early part of the season 

 the value was approximately £1 \ while during the last month settlers 

 received as high as £19 per ton. Seven cuts were obtained over a 

 period of eight months; the first was obtained on 15th October, 1919, and 

 the last on 3rd Mav, 1920. Yields were as follow : — 



Fertiliser per aero, lat cut. 2nd cut. Srd cut 



4th cut. 



5th cut. 6th cut. 1 7th cut. Total. 



t. c. q.lb.jt. c. q. Ib.l t. c. q.lb. 



Basic superplios- 

 phato 



Superpliosphate 



P7 



No manure 



t. c. q. lb. 

 1110 8 

 1 9016 

 180 

 1 23 12 



t. c. q. lb. t. c. q.lb. 

 2 02 24!l 41 

 I 17 16 M 3 4 

 1 10 16 2 16 

 1 7 16 I.') 1 12 



1 7 1 20 

 1 7216 

 1 1 3 20 



1 63 oil 10 4 



1 



1 8 4 ' 16 3 16 

 19 2 16 12 2 24 



1 4 C 1 19 2 16 15 1 12 



c. q. lb. 



15 

 93 4 

 9 24 



10 2 24 



t. c. q. lb. 

 9 6 10 

 8 9 1 20 

 6 IS 16 

 6 l.^> 14 



Farm 327. — On this farm plots of lucerne growing on -a sandy loam were 

 top-dressed with superphosphate at the rate of 1 and 2 cwt. per acre respec- 

 tively during May, 1919, methods similar to those applied to Farm 338 being 

 adopted. On inspection in September, the manured plots showed increased 

 growth over the unmanured, in places the lucerne being quite 6 inches 

 taller. This extra growth was noticeable right throughout the season. Owing 

 to the heavy winds, which prevailed during the curing of the hay after the 

 second and third cuts, blowing the cocks about and mixing those of the 

 different plots, only three cuts which were comparable by weighing were 

 obtained. Showery weather interfered with the making of the last cut into 



