The Wohurn Field Experiments, 1914. 291 



The results with nitrate of soda were generally not as good 

 as those with sulphate of ammonia. Used by itself, nitrate 

 of soda produced (plots 3a and 3b) from 5 to 6 bushels only, 

 the heavier application only slightly increasing the yield. The 

 use of mineral manures in addition gave only a slight rise 

 (plot 6), while the heavier dressing of nitrate of soda with 

 minerals yielded only an additional 1 bushel (plot 9a), the 

 omission of nitrate of soda for the year reducing the crop to 

 2*5 bushels (plot 9b), the lowest of the whole series. Now 

 this would seem to indicate that the nitrate of soda plots are 

 failing generally throughout, this failure being naturally more 

 marked in an exceptional season like the one under notice. 



Comparing plots 10a and 11a, it would seem that on this 

 land phosphates are more needed than potash, while, as 

 between rape dust and farmyard manure (plots 10b and lib), 

 there was nothing to choose except as regards straw. The 

 farmyard manure plot in the early part of the season looked 

 considerably the better, but the rape dust plot gradually 

 improved, and to all appearance was the better crop. Farm- 

 yard manure, however, yielded 5 cwt. per acre more straw. 



As regards the quality of the corn, the valuer reported that 

 the samples were all very poor for the season, and, but for the 

 fact that wheat, even of low grade, was comparatively dear, 

 he would not have assigned as high values as he did. 



The jdelds of best quality were those with rape Just 

 (plot 10b) and sulphate of ammonia together with minerals 

 and lime (plots .5b, 8aa, 8bb). The worst were those grown 

 with nitrate of soda, notably plots 3a and 3b, and these plots, 

 along with the farmyard manure one (plot lib), gave the most 

 " tail " corn. 



Continuous Growing of Barley {Stackyard Field) 

 1914 (38th Season). 



The land was ploughed for the first time October 6-11, 

 1913. The second ploughing took place in February, 1914, 

 when farmyard manure was applied on February 19 (plot lib). 

 The actual amount put on was at the rate of G tons 7 cwt. per 

 acre, and such as to supply 100 lb. of ammonia per acre. 



On April 4 barley ("Chevalier ") was drilled at the rate of 

 9 pecks per acre, the seed having been previously dressed with 

 sulphate of copper. Mineral manures were sown on the same 

 day, and also rape dust spread on plot 10b at the rate of 462 lb. 

 per acre, this giving 25 lb. ammonia per acre. 



The first nitrogenous top-dressings were given May 14-18, and 

 the second on J une 10. The crop, as a whole, did better than the 

 wheat, and, on July 26, the plots were ready for cutting. The 



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