616 



Journal of Agriculture, Victoria. [10 Oct., 1918. 



if the results from barley (whicli is of about the same feeding value) are 

 compared with the yields of self-sown wheat in Table No. 1, the mone- 

 tary value of the latter can be approximately assessed. 



The average return for the past four years from the first " feed " 

 each year on the Cape barley crops referred to is as follows: — 



Weight of crop per acre. Sheep Days.* Increase in Live Weight. 



55.9 cwt. . . 313.7 . . 170.7 lbs. 



Thus 1 cwt. of green barley would support a sheep for 5.6 days and 

 increase its live weight by 3 lbs. Assuming that the grazing value of 

 the self-sown wheat is equal weight for weight to that of barley, and 

 calculated at the rate of 2d. per lb. for the live weight increase and |d. 

 per day for the wool (both reasonable charges under prevailing condi- 

 tions), the cash value of the wheat on the different plots would be as 

 shown in Table ISTo. III. 



Table No. III. 

 .Estimated Cash Value of Residual Benefit. 

 On basis of weight of crop on July 19th, 2d. per lb. live weight increase, Jd. per 

 day for wool, and assuming that wheat is of equal grazing value to the barley specified 

 above. 



On basis of weight of crop on September 7th, 2d. per lb. live weight increase, ^d. per 

 day for wool, and assuming that wheat is of equal grazing value to the barley specified 

 above. 



On the basis of the weights recorded on 7th September, Table No. III. 

 shows that on three out of the four plots which received superphosphate 

 only, the residual effect on the self-sown wheat crop was, in one year, 

 sufficient to pay for the superphosphate applied to tivo crops of wheat. 

 However, under practical working conditions the crop would probably 

 have been stocked before this date, and the following figures worked out 

 on the average weight of the two samplings would be more reliable as a 



• The term ' ' sheep days " means the number of sheep multiplied by the number of days they were on the 

 plot, e.g., ten sheep pastured for twenty days, or twenty sheep pastured for ten days, equals 200 sheep 

 days. Thus 365 sheep days per acre is equivalent to one sheep to the acre for the whole year. 



