308 



EXPERIMENTS ON TUKNIPS. 



the same money as the superphosphate than in the previous 

 season. This is due to the dissolved phosphates costing rather 

 less, and the undissolved rather more. The ground coprolites 

 used in 1883 was probably the only manure used which might 

 have been bought cheaper, perhaps for 10 per cent. less. It 

 was not used for the general crop, and a small quantity only 

 required, and therefore estimates could not be taken for it. 



The plots were sown with Drummond's Aberdeen yellow 

 turnip on 26th May, and were singled on 29th and 30th June. 

 At that time the plots had much the same relative appearance as 

 in the previous year. The turnips grew on without a check, and 

 proved a heavy crop — nearly double of that of the previous year. 



Table IV. 



15 



&0 



rJ5 



o 



200 



6 



7 



All clung. 



Potash. 



/. 



Nitrogen. 



A 



526 



632 633 



621 





m 



•3 ^ 



o 



652 



16 



17 



18 



19 



20 



21 



All dung except 15. 



Ground mineral 

 phospate. 



_A_ 



Potash. 



CO 



O 

 Ph 



Cl, 



02 



Nitrogen. 



-'^ 



618 1558 632 



549 



615 



P-, 



^ 2 



!-( , 



•:3 c3 



O 

 608 



8 



9 



10 11 12 13 I 14 



-td to 

 ^ 2 



I— I •'"' 



537 



No dung. 



Ground mineral 

 phosphate. 



__A_ 



399 



Potash. 



0) 



■pH 



O 

 0) 



465 



Nitrogen. 



495 



487 



555 



22 23 24 i 25 



26 



27 



No dung except 28. 



CO p, 



1—1 



• 1—1 o 



S3 H 



■73 rt 



o 



492 



—A 



Superphos. 



Potash 



426 



433 



Nitrogen. 



K 



537 



317 



293 



.1— I 



o 



255 



28 



p 



13 



&c 



o 



589 



