RESIDUES LEFT BY l.EGl .M 1 Nol s Cljol 



I l: 



"Memoranda," and Table LI 1 1, sliows typical iv>iilis in the 

 earlier and later years of the experiment. 



At first a fair growth of some of tlie i)lants was ohtaiiicd 

 on the land which had ceased to carry red clover, Iml in later 

 years the growth of any but the powerfully-rooting' lueerne and 

 Bokhara clover became very poor, and repeated failures to 



Table LIII. — Hoos Field, Leguminous ExperimcnU. Dry Matlrr m 

 produce per acre per annum. Mean of Plots 4, 5, and 6. 



Plot 4 only. 



obtain a plant occmTcd on re-seeding. The land itself got 

 very foul and in a poor mechanical condition ; so that in 1898 

 the greater part of the land under experiment was sown with 

 wheat without manm'e, only a portion of each })lot Ix'ing 

 retained for continuous experiment. 



Five successive crops of wheat were taken and liarve.sted 

 separately from each of the old plots, the combined result 

 from the various plots which had previously carried the same 

 leguminous plant being put together in the Table 1.1 \'. it 

 will be seen that all the leguminous crops left a lai'ge residue 

 containing nitrogen in the soil, so that the cro|) of wlieat 

 which followed was generally more than 40 bushels j»ei- acre 

 with 2h tons of straw. But this residue was rapidly exhausted ; 

 the succeeding crop was very poor, and fell to a jjoint from 



