3866 Revort oF rHe HORTICULTURAL DEPARTMENT OF THE 
used the following amounts of plant'food constituents during one 
growing season: 
Pound, 
NItPOSen gs, Akl BSN ee Malas SRE ae RE Res a Tee 0.19 
PHOSDHOTIC ALTOS « . c2, 2 totes Dixy aerate cone epee ieee ee ona 0.06 
IZBLARN Pe ote eo a ee aie aks wo Sleta Nt Sean cit ne eee Sng eee 
DANE ig AE eh 4 Det oi aap ae ey Rtv ts gh acne s en ae he eet eee 0.27 
IVE OTICRIA ovate coc aoc we id nie utes sie Pity Bia ater abe amas Pie ars tes ee 0.08 
COMPARISON OF RESULTS OBTAINED WITH THE 
DIFFERENT VARIETIES. 
Having considered for each variety of fruit tree the amount 
of plant-food constituents used in one season’s growth of fruit, 
foliage and new wood, we will now compare the results given by 
the different varieties. We will consider these results (1) in 
respect to the total amount of plant-food constituents used on an 
average by each tree, (2) the relative proportions of plant-food 
constituents used and (3) the total amount used by the trees 
grown on one acre of land. 
TOTAL AMOUNT OF PLANT-FOOD CONSTITUENTS USED. 
The following table gives the average amount of nitrogen, 
phosphoric acid, potash, lime and magnesia used by each fruit 
tree of the different varieties studied: 
TABLE VI.—PLANT Foop Usep By ONE TREE OF DIFFERENT VARIETIES OF 
FRUIT TREES. 


: Phosphoric Potash Lime Magnesia 
VARIETY. Nitrogen. acid (P;O;). (KO). (CaO). (MgO). 
Lbs. Lbs. Lbs. a 1,08: Lbs. 
IAD DIC Be ee aeei is oS 1.47 0.39 LOL 1.62 0.66 
PEA CIO Uke is eens 0.62 0.15 0.60 0.95 0.29 
PSR ree kecatcttitemie. Mees 0.25 0.06 0.27 0:32 0.09 
Plu eaters Foe es 0225 0.07 0.32 0.34 0.11 
GIN CO, Mirae oes aehn ae ene asta 0.19 0.06 0.24 0.27 0.08 
These figures represent results obtained with trees in full vigor 
of growth and may be regarded as approaching as near average 
results as we can expect. Larger and older or smaller and 
younger trees could be selected which would give quite different 
results. 
