FOOD FOR PLANTS 129 



becomes available as plant food within a very short 

 time, and will give excellent results the first year. 



Sulphur should not be used continually unless 

 other fertilizers are added. It acts strongly on the 

 other elements and will soon deplete the soil. It will 

 also cause a sour or acid condition. 



Occasional applications are especially good on 

 leguminous crops, which require considerable 

 amounts of sulphur as plant food. 



What Burbank Said. 



"After testing a great variety of fertilizers on my 

 orchard and experimental grounds, I find that the 

 Nitrate of Soda and Thomas slag phosphate have 

 given the best results at the least expense, and I shall 

 not look further at present, as my trees, bulbs, plants, 

 flowers and fruits have been, by the use of about 150 

 pounds each per acre, nearly doubled in size and 

 beauty in almost every instance. The above-named 

 fertilizers have more than doubled the product of my 

 soil at a very small outlay per acre. 



Where the Nitrate of Soda is used, I find a greatly 

 increased ability in trees to resist drought, and lack 

 of cultivation." 



"Luther Burbank is the greatest originator of new 

 and valuable forms of plant life of this or any other 

 age," says David Starr Jordan, President of Leland 

 Stanford Junior University, California. 



