40 



HOGS FIELD 



On Plots 1, 2, 3, and 4 barley was again sown (without manure) in 1905, 

 and gave the following results : — 



Table XIX. — Produce per acre in 1905. 



HOOS FIELD 



Inoculation of Leguminous Plants 



Since the land on which potatoes had been formerly grown (see Plan 

 on page 37) is known to have carried no leguminous crop for the 

 last fifty years, it was decided to use those plots which no longer showed 

 much residue of the manures previously applied, i.e., Plots 5-10, for testing 

 the comparative effects of different media for inoculating leguminous plants 

 with their appropriate bacteria. Plots 6, 8, and 10 were divided trans- 

 versely into four plots ; on A, soil inoculated with Hiltner's preparation 

 from Munich ; on B, soil inoculated with Moore's preparation from the 

 United States ; on C, soil from a field which had carried red clover in 1904, 

 were sown on 7th April ; D being left uninoculated. Red clover seed 

 was sown on 15th May over the whole area. 



Plots 5, 7, and 9 were similarly divided into three plots and sown with 

 cow peas {Vig^na catjang\ a leguminous plant quite new to this land. On 

 E, the seed was inoculated with Moore's medium just before sowing ; on F, 

 soil obtained from an old cow pea field in the United States was spread ; 

 and G was not inoculated. The cow peas were sown on 16th May, but 

 failed to give a satisfactory plant, and were ploughed up. The plots were 

 sown with red clover in 1906, as part of a further trial of the continuous 

 growth of clover. 



HOOS FIELD— WHEAT AFTER FALLOW 



The two half-acre plots in Hoos field are never manured, but every 

 year one carries a wheat crop and the other is given a bare summer fallow, 

 the treatment alternating, so that every year one plot is carrying a wheat 

 crop following a bare fallow. By comparing the results obtained with the 

 yield of the un manured plot growing wheat continuously, the benefit of the 

 bare fallow can be estimated. 



