PURCHASE AND USD; OF FERTILIZERS 345 



pounds kainit applied at the rate of 400 to 800 pounds per acre. 

 This fertilizer would contain 8 per cent, phosphoric acid, 2.4 per 

 cent, nitrogen, and 2.4 per cent, potash. A rotation of crops in- 

 cluding legumes should be adopted. 



Truck Crops. Rotation, manure, and heavy applications of 

 fertilizers are used for truck crops. 



Potatoes in New York receive 1,000 to 2,000 pounds of a fer- 

 tilizer containing about 8 per cent, available phosphoric acid, 4 per 

 cent, nitrogen, and 10 per cent, potash. In Texas good results 

 are secured with a mixture of 800 pounds acid phosphate and 

 1,200 pounds cottonseed meal at the rate of 300 to 600 pounds 

 per acre. Sweet potatoes in New Jersey receive 500 to 700 

 pounds of a fertilizer containing 3 per cent, nitrogen, 7 per cent, 

 available phosphoric acid, 12 per cent, potash. In Georgia, 200 

 to 400 bushels per acre, according to soil and season, are secured 

 with a mixture of 320 pounds acid phosphate, 360 pounds cotton- 

 seed meal, and 640 pounds kainit. Early tomatoes in New Jersey 

 receive about 350 pounds acid phosphate and 200 pounds muriate 

 of potash just before planting, a top dressing of' 100 pounds 

 nitrate of soda at time of setting out, and 100 pounds again three 

 or four weeks later. Onions in New Jersey, do well on 1,000 

 pounds of a fertilizer containing 5 per cent, nitrogen, 6 per cent, 

 available phosphoric acid, and 10 per cent, potash. In Texas, 

 they do well on 1,500 pounds cottonseed meal, or 1,000 pounds of 

 a fertilizer containing 5 per cent, available phosphoric acid, 5 per 

 cent, nitrogen, and 5 per cent, potash. Cabbage may receive an 

 application of 1,000 pounds of a fertilizer containing 4 per cent, 

 nitrogen, 8 per cent, phosphoric acid, and 5 per cent, potash, 

 supplemented by a top dressing of 100 pounds nitrate of soda and 

 100 pounds acid phosphate after the plants begin to grow when set 

 out, and 100 pounds when the heads begin to form. 



