45 



or it can be mixed by the planter himself from the fol- 

 lowing materials: 



400 Ibs. Nitrate of Soda containing 15% Nitrogen 



500 Basic Slag 20% Phos. Acid 



200 Sulphate of Potash 50% Potash 



900 Dry earth as filler. 



2000 Ibs. 



or 



300 Ibs. Sulphate of Ammonia containing 20% Nitrogen 



250 Acid Phosphate 40% Phos. Acid 



375 Sulphate of Potash Magnesia 27% Potash 



1075 Dry earth as filler. 



or 



430 Ibs. Dried Blood containing 14%; Nitrogen 

 <670 Acid Phosphate 15% Phos. Acid 



200 Muriate of Potash 50% Potash 



700 Dry earth as filler. 



2000 ibs. 



Neither the dried blood nor the muriate of potash as 

 used in the last mixture is considered well suited for 

 citrus fertilizer. Dried blood and other organic forms 

 should not be used where the trees are subject to gummo- 

 sis. Muriate of potash may be used for young trees and 

 probably for bearing trees as well, but the influence of 

 chlorine on the fruit has not yet been determined. 



Any of the above mixtures contain approximately 3% 

 nitrogen, 5% phosphoric acid and 5% potash when mixed 

 with filler to bring the weight up to 2000 Ibs. Filler is not 

 strictly necessary especially if the fertilizer is used 

 shortly after mixing, but in that *case corresponding 

 smaller amounts should be applied. For instance of the 



