322 



EXPERIMENTS ON TURNIPS. 



As the application of artificial manures along with dung has 

 been in most of the plots too liberal to be repaid by the increased 

 produce, it is proposed to reduce the quantity of dung on the 

 experimental plots in future seasons. The alternative of re- 

 ducing the artificials might prevent their different constituents 

 showing sufficiently distinct results. It has been suggested that 

 plots containing bone meal would be of value as showing the 

 comparative effect of nitrogen in a less soluble form, and it is 

 proposed to substitute an equal money value of this manure for 

 part of the nitrate soda and phosphates in plots 7, 8, 21, and 22, 

 as these have merely given results intermediate between the 

 plots with ground and dissolved phosphates. 



Analyses and Prices of Manures. 

 Anaylsis of Lime applied (o tons 2^er acre in Winter). 



The limes used in 1882 and 1883 were from different sources. 

 Large samples were taken from trucks as delivered, so that each 

 analysis represents the quality of a separate delivery. It will 

 be seen that the lime used in 1882 varied much, while the other 

 was constant in quality. 



Analysis of Potash Salts. 



These salts were sold as " sulphate of potash," of which they 

 were guaranteed to contain 50 per cent., and were at the time 

 the cheapest form in which potash could be bought. In a 

 sense they fulfil the guarantee, but it is wrong to sell them as 

 sulphate of potash, as the great bulk of the potash is in the form 

 of chloride, and in this form is scarcely so valuable per unit of 

 potash. 



