Food for apples in the later stages. Nitrate of Soda should not 

 Plants be applied until just as the trees are beginning to grow. 

 172 Fertilizers for other fruits: For all 



Nitrate of Soda perennial fruits, as well as shrubs and 

 for Fruits plants, the fertilizer used should be 



Generally. largely available in the early part of 



the season, as a preventive to winter injuries. Nitrate 

 of Soda is the most desirable form of ammoniate. 



The Rational Use of Chilean Nitrate 

 in California 



Some time since horticulturists in convention in 

 Los Angeles discussed the question of the accumulation 

 of Black Alkali in the soil. 



One speaker made the statement that the use of 

 Chilean Nitrate would result in such alkali accumu- 

 lation — stating that in England this had become the 

 case, and that English farmers were avoiding the use 

 of Nitrate. 



The incorrectness of this latter statement is shown 

 by the fact that the use of Chilean Nitrate increases 

 year by year in England, and it is coming to be more 

 and more appreciated there, as well as on the continent 

 of Europe. 



In fact, everywhere in the world where there is 

 progressive and enlightened experiment work, the 

 unique qualities of Chilean Nitrate are putting it ahead 

 of every other Nitrogenous plant food. No reputable 

 authority in the world has ever advocated such large 

 quantities of Chilean Nitrate per acre as would result 

 in any abnormal accumulation of alkali. Moreover, 

 the use of acid phosphates, associated as they fre- 

 quently are with sulphate of lime, converts any alkali 

 residue into harmless forms of soda. Besides, the vast 

 majority of soils in the United States, probably 95 per 

 cent., have a tendency to grow acid rather than to 

 grow alkali; and Chilean Nitrate is, therefore, highly 

 beneficial in such cases. Chilean Nitrate is really 

 needed to help neutralize these acid residues. 



The use of potash salts tends to leave acid resid- 

 uals, and when phosphates and potashes are used 



