83 



striking, as not only were the amounts of corn and cake much 

 greater than previously used, but the margin between the cake 

 and corn fed was nearly 38 lb. of nitrogen, equivalent to 2 cwt. 

 of nitrate of soda per acre. 



,.. c ~ 1923, Clover. 1924, Wheat, 



(b) Series D. 



Red clover had been sown in the barley crop of 1922 on 

 May 22nd, and it looked very well through the winter. It was 

 twice cut for hay in 1923, viz., on June 25th and on August 13th, 

 and " Red Standard " wheat, 3 bushels per acre, was drilled 

 October 18th. It came up fairly well, but was rather slow in 

 growth. The cake-fed plot looked rather better than that corn- 

 fed. The crop improved towards harvest and was cut August 

 26th and carted September 2nd. The results were : — 



The differences are not significant, but it must be remem- 

 bered that no cake or corn had been fed since 1916. 



4. Green-manuring Experiments, 

 (a) Stackyard Field. Series A. 



1923. 



As noticed in the 1922 report, a change in these plots was 

 introduced in 1922, they being now so arranged that every year 

 there will be a corn crop on one-half of the area and a green-crop 

 on the other half. 



Upper Half. — The green crops grown and fed off by sheep 

 in July and October, 1922 — 1| cwt. of cotton cake per acre being 

 given as well — were followed by wheat — " Red Standard " — 

 which was drilled on November 9th at the rate of 2£ bushels per 

 acre. On December 15th 3 cwt. per acre of superphospate were 

 given to the wheat. It was never more than a poor crop, but 

 now, for the first time, the wheat after tares seemed to be better 

 than that after mustard. It was cut August 13th, stacked 

 August 21st, and threshed November 15th. 



The results were : — 



