New York AGRICULTURAL EXPERIMENT STATION. 365 
4 
The following statements summarize the results obtained with 
the quince tree used in our work: 
(1) Weight.—The total amount of dry matter removed from 
the tree in the form of fruit, foliage and new wood is 19.32 pounds, 
of which 70.3 per ct. is in the fruit, 22.9 per ct. in the leaves, 
and 6.8 per ct. in the new wood. 
(2) Nitrogen.—The amount of nitrogen removed from the 
tree in the season’s products is about 0.2 pound, of which nearly 
50 per ct. is in the fruit, about 45 per ct. in the leaves and the 
rest in the new wood. 
(3) Phosphoric acid.—The total amount of phosphoric acid 
taken from the tree in one season’s products is 0.06 pound, 66 
per ct. of which is in the fruit, 26 per ct. in the leaves, and 8 per ct. 
in the new wood. 
(4) Potash.—About 0.25 pound of potash is removed in the 
products taken from the tree during one season, of which 78 per 
ct. is in the fruit, 17 per ct. in the foliage, and 5 per ct. in the 
new wood. cad 
(5) Lime.—The total amount of lime found in the products 
of the tree is 0.27 pound, 50 per ct. of which is in the leaves, 25 
per ct. in the new wood, and 5 per ct. in the fruit. | 
(6) Magnesia.—There is found 0.08 pound of magnesia in the 
products taken from the tree, 58 per ct. of which is in the leaves, 
32 per ct. in the fruit and 10 per ct. in the new wood. 
(7) Relative proportions of constituents.—On the basis of the 
amounts of plant-food constituents given in Table V, we have 
the following approximate relative proportions of the different 
constituents, taking 1 pound of nitrogen as a basis for compari- 
son: 
Pounds 
nT) Wee MEMES s, « '. Sis cy sd epee etmaty Sip alors Camas ot heen ens 1.0 
PHOS DIROTIC: ACL eristaiecsi< wis 8 + 0 anal iiead seenee ats ea ateber om 0.33 
RR eh) erreeet  « . . x's oa Nmamanmer Fete pythe so au ace oanete ares 1.25 - 
REMC Re rena OE GE Sy. 's «55 ap Rates «js Weve pie elore piaintarede as 1.45 
AUER) OS ES So ct eee opens ay rye 0.40 


(8) Amounts of different constituents used by one plum tree.— 
On the basis of the data embodied in Table V, the quince tree 
