RETURN OF MATERIAL TO THE Hop ROoort. 473 

are also available two sets of observations made by Professor 
Percival in 1895. The green weight per hill of six bines in 
each case was as follows :— 

Locality. Hops. | Leaves. | Bine. 


Ozs. Ozs. Ozs. 





Goudhurst, 1895 - S|) 16a) Ba 98°4 | Extra heavy crop. 
Paddock Wood, 1895 -| 126 5§°5 | 64°5 | Very leafy. 
Wye, 1900 - - - 65 4Oie a 79 Short crop. 
Mean weight. 118 | 53 SI 

Both the actual and the relative weights in these three 
cases vary considerably. If the mean weights be com- 
bined with the analyses before set out, on the basis of 1,000 
hills to the acre, a very common rate of planting, the results 
give the following quantities of material as contained in an 
average crop at picking time :— 

Weight of Material per Acre. 

[pee Rise Sse ieee Poe: 





Tops. Leaf. | Bine. Sas 
Ibs Ibs. lbs Ibs 
Green Weight =  - *: 7370 3310 4940 15620 
DnvyiNMattert-— = 6 ~ \)-. | 1492 1004 TA) | | BYOS 
Nitrogen - - - = 50°5 25°4 7) | 85°6 
Lime - - é : - | 16°2 68°4 23°9 108° 5 
Potash - 1) ee somal Toyo) 17'I 13°4 | 69°5 
Phosphoric Acid - = é | 1577 | 4°82 AN | 25°3 


These figures, being based on only a few determinations 
of quantities that are variable, are at best only rough 
approximations to a mean; as regards the hops themselves, 
the most variable element, they correspond to a crop of 
about 16 cwt. of dried hops per acre, the leaf and bine 
represent much more nearly the average amounts. 
