ON THE GROWTH OF LEGUMINOUS CROPS. 



21 



will be given on the point presently, but it may here be premised that, 

 at the commencement, the percentage of -nitrogen in the surface soil of 

 the garden was at least four times as high as in that of the arable soil 

 in the field, and it would doubtless be richer in all other matters also. 

 Indeed, it is probable that the subsoil of the garden, below the first 9 

 inches of depth, would be as rich, and perhaps richer than the surface 

 soil of the field. Table IX. (below), gives the results for 35 of the 36 

 years of experiment with Clover on the rich garden soil. 



TABLE IX. 

 BED CLOVER. 



Grown year after year on Rich Garden-soil, The Garden, Rothamsted. 

 Hay, Dry Matter, Mineral Matter, and Nitrogen, per acre, per annum. 



SUMMARY. Averages. 



