The Wohurn Field Experiments^ 1912. 



305 



Table IV. — Green-Manuring Experiiyient {Stackyard Field). 

 Produce of Wheat per acre, 1912— after Green-crops. 



Taking the mean of the duplicate plots we find the following 

 general result : — 



Produce per Acre 

 Head Corn Straw, Ac. 

 Bushels c q. lb. 



After Tares fed on . . . . 188 12 3 25 



„ Rape , 20-9 14 2 7 



„ Mustard fed on . . . 18-2 12 2 11 



In this, the first wheat crop of the new series, accordingly, 

 the best crop has been obtained from the growing of rape and 

 feeding it on the land, the tares giving the next best return, 

 and the mustard slightly less, a result diff'erent from that 

 experienced in Lansome Field, where the green crops are 

 ploughed in and not fed on the land. The experiment will 

 be continued and green crops again grown in 1913, as it is of 

 great importance to clearly ascertain in what the diff'erence 

 between the two fields lies, whether in the green crops 

 themselves or in the respective operations of ploughing in 

 or feeding on the land. 



(6) Lansome Field. 



The green crops having been grown in 1911 and ploughed 

 in, " Square Head's Master " wheat — 9 pecks per acre — was 

 drilled November 2, 1911. As usual, at first the wheat looked 

 better after the tares, but, as the season of 1912 went on, 

 there was little doubt as to the wheat being best after mustard, 

 and then after rape, the tares plot, as in previous years, clearly 

 showing the smallest crop. These appearances were borne out 

 at harvest time. The wheat crop was cut August 9, carted and 

 threshed September 2. The lesults are given in Table V., 

 page 306. 



The average of the two " tares " plots was 10*2 bushels, of 

 the " rape " 13 bushels, and of the " mustard " plots 16*8 



