FIELD CROPS. 



591 



"The most successful oouibinatious of niaunres employed in the experiments, 

 taking into aecouut the results foi- the two years ISl) 1 and 1895, have been the follow- 

 ing: (rt) 112 lbs. nitrate of soda, 224 lbs. superphosphate; (b) 85 lbs. sulphate of 

 ammonia, 224 lbs. superphosphate; (c) 85 lbs. sulphate of ammonia, 224 lbs. super- 

 phosphate, 112 lbs. muriate of potash." 



Report on experiments on the manuring of turnips in 1895, 



E. P. Weigut {Glas(/oic and West of Scotland Technical College, Agl. 

 Z*ept. Rpts. 1895, pp. 11-22). — These experiments are in continuation of 

 the series of 1803 and 1804 and the general conchisions are based npon 

 the experience of tlie 3 years. In 1805 13 plats were used upon each 

 of 31 farms in the southwestern and central portions of Scotland. 

 Two plats of eacli series received no fertilizer and npon tlie others 

 were applied superphosphate, basic slag, bone meal, and barnyard 

 manure, alone and in different combinations with nitrate of soda, sul- 

 phate of ammonia, and sulphate of potash. Where comparison was 

 made between one or two elements in different combinations the 

 amounts of these elements on the plats were made equal. Tables are 

 given showing the location and soil of the different farms, variety of 

 turnips used, and yield of roots per acre for each plat. The effects of 

 the different combinations are separately discussed and illustrated by 

 tables. 



The average results are given in the following table : 



Effect of fertilizers upon turnips. 



Pertilizer. 



Unmanured ' 



Siiperjihosphate 



Basic slaa; 



Bone meal 



Basic slag 



Nitrate of soda 



Superphosphate 



Nitrate of soda 



Superphosphate 



Sulphate of anmionia. 



Superphosphate 



Nitrate of soda 



Sulphate of potash . . . 



Superphosphate 



Bone meal 



Nitrate of soda 



Sulphate of potash... 



Barnyard manure 



Do 



Superphosphate 



Barnyard manure 



Superi)liosphate 



Nitrate of soda 



Amount 

 of fertili- 

 zer per 

 acre. 



Lbs. 



672 



688 



;i75 



088 



93« 



072 



112 



072 



85 



072 



112 



112 



072 



418 



112 



112 



44, 800 



22, 400 



448 



22, 400 



448 



112 



Eoots per 

 acre. 



Tom 

 8 



15 

 14 

 12 



. Lbs. 



1,064 

 448 

 140 



1,960 



Tops per 

 acre. ' 



Tons. Lbs. 



14 1,540 





1,932 



2,100 



1,792 



28 



644 



1,708 

 224 



\ 18 588 



19 672 



3 1, 120 



3 1, 036 



3 1, 400 



3 1 , 800 



3 2, 044 



3 1, 204 



Increase of 



roots over 



check plats. 



To7is Lb 



1,624 



1,316 



896 



476 



644 



1,428 



280 



9 1, 036 



1,932 

 1,764 



10 1, 828 



' Aver.age of 21 fai-ms onlJ^ ' Average of 2 plats on each farm. 



The author draws the following conclusions from the experiments: 



"(1) Good crops of turnips can be grown either with farmyard manure alone, or 

 with artificial fertilizers alone. 



" (2) A much better return can bo obtained for barnyard manure by applying it 

 to the crop, in a moderate dressing, along with suitable artilicials, than by applying 

 it in larger quantity alone. 



