The the crop can be ploughed under early in the spring, and the 

 Cultivation of g roun d b e subsequently thoroughly pulverized for the reten- 

 Citrus Fruits f. ,. j u. u^ -T-U - i. 

 tion or moisture during the summer drought. I heir abun- 



18 dant root growth is an advantage in favour of these beans 



for green manuring. Not only do the roots assist in opening 

 the soil, but by their decay they add materially to the humus 

 contents of the land. 



Apart from the benefit of its mechanical action on the 

 soil, organic manure thus applied yields up the products of 

 its decomposition little by little, thereby steadily maintaining 

 the food supply of the tree; and when the energies of the 

 latter have to be brought to a maximum for the production 

 of a heavy crop, the application of the readily assimilable 

 chemical fertilizers produces its effect with certainty and at 

 the required vegetative period. 



Young Orange Trees. 



The first necessity for these is rapid development of 

 the trunk and foliage; the following is a suitable dressing, 

 per acre of the plantation : 



Nitrate of Soda 35 pounds 



Superphosphate of lime 350 " 



Sulphate of potash 100 " 



The addition of the following will in many cases prove 

 advantageous : 



Sulphate of lime 150 pounds 



Sulphate of iron i oo " 



The application should be increased to the full dressing 

 as the yield of fruit becomes more abundant. 



Old Orange^Trees. 



Old orange trees contain much fixed lime in the trunk 

 and branches, and they need to have activity imparted to the 

 sap, foliation and florescence. The following application, 

 per acre, will be a suitable one : 



Nitrate of Soda 600 pounds 



Superphosphate of lime 700 *' 



Sulphate of potash 150 " 



Sulphate of iron 200 " 



