26 

 constituents removed by ten boxes of fruit, 800 pounds. In 

 ten boxes there will be taken from the grove and subsequently 

 sold In the market .40 pounds of phosphoric acid, 1.90 pounds 

 of potash and .88 pounds of nitrogen. Nov/, If each tree 

 bears ten boxes of fruit, these amounts must be supplied to 

 make fruit alone, to say nothing of the amounts required to 

 make wood growth. 



Suppose- we select as our fertilizing materials acid phos- 

 phate, containing 14 per cent available phosphoric acid, high 

 grade sulphate of potash, containing 50 per cent available 

 potash, and nitrate of soda, containing 15 per cent nitrogen. 

 Of these materials then will be required as follows : acid 

 phosphate, 2.85 pounds ; high grade sulphate of potash, 3.8 

 pounds ; and nitrate of soda, 5,86 pounds. This gives In all 

 12.51 pounds of fertilizer. 



Of these amounts a certain portion is gathered from the 

 soil, but in giving the weights as above no allowance has been 

 made for the materials obtained from this source. It Is 

 deemed best to supply these amounts for the fruit and make the 

 necessary deduction from the amounts required to make wood 

 growth. On the other hand no increase has been made to 

 counterbalance the losses from leaching, etc. All these 

 things have to be taken into account. 



Uses 



The pomelo is much esteemed as a dessert fruit, and has 



the reputation of being an excellent digestive. It contains 

 sugar and citric acid, with much essential oil in the peel. 



