282 



Bulletin 232. 



Net Gain or Loss from Fertilizers with Oats and Timothy Hay. 



Plat 

 No. 



711 

 712 

 713 

 714 

 715 

 716 



717 

 718 



719 



720 



721 



722 



723 



724 



725 



726 

 727 



728 



729 

 730 

 731 

 732 



TREATMENT. 



No treatment 



320 lbs. Acid Phosphate. 

 80 lbs. Muriate Potash . . 



No treatibent 



160 lbs. Nitrate Soda 



320 lbs. Acid Phosphate 



160 lbs. Nitrate Soda 



No treatment 



320 lbs. Acid Phosphate 

 80 lbs. Muriate Potash . . 

 160 lbs. Nitrate Soda 

 80 lbs. Muriate Potash. . 



No treatment 



160 lbs. Nitrate Soda 

 80 lbs. Muriate Potash 

 320 lbs. Acid Phosphate . 

 160 lbs. Nitrate Soda 

 80 lbs. Muriate Potash 

 640 lbs. Acid Phosphate. 



No treatment 



320 lbs. Nitrate Soda 

 80 lbs. Muriate Potash 

 640 lbs. Acid Phosphate. 

 320 lbs. Nitrate Soda 

 80 lbs. Muriate Potash 

 320 lbs. Acid Phosphate. 



No treatment 



160 lbs. Nitrate Soda 

 80 lbs. Muriate Potash 

 320 lbs. Acid Phosphate. 

 160 lbs. "Niterlime" 

 80 lbs. Muriate Potash 

 320 lbs. Acid Phosphate . 



No treatment 



No treatment 



10 tons of manure 



20 tons of manure 



Net gain 



or loss 



( — ) from 



fertilizer 



with oats. 



— S2.82 

 —4.05 



-2.07 

 -3.09 



— .99 

 —1.73 



—3.60 

 —5.99 



-7.92 

 -6.90 



-5.24 



-3.20 

 -6.19 



Net gain 



or loss 

 ( — ) from 

 fertilizer 



with 

 timothy. 



$1.61 

 3.45 



3.15 

 -1.01 



4.13 

 11.53 



5.81 



Net gain 



or loss 



( — ) from 



fertilizer 



with both 



crops. 



13.75 

 21.33 i 



— 45 

 —7.00 



-3.79 

 4.63 



57 



10.55 

 15.14 



*See note pages 278 and 281. 



The most important result as shown, both in the growing crop and 

 in the weights of hay, was the influence of the nitrate of soda. In 

 every instance where nitrate of soda was appHed a marked increase 

 in the vigor of growth as well as in the weight of hay was produced. 

 The influence of the phosphoric acid and potash was much less 

 marked in all instances. When nitrate of soda was doubled without 

 increasing the acid phosphate or the muriate of potash the apparent 

 increase in yield was more than doubled, but when the phosphoric 

 acid was doubled without increasing the nitrate of soda or the muriate 

 of potash the yield was decreased. The results suggest that the 

 relation of nitrogen to mineral salts is a matter of importance on 

 Dunkirk clay loam. They suggest that 320 pounds of acid phos- 

 phate to 160 pounds of nitrate of soda, or 620 pounds of acid phos- 

 phate to 320 pounds of nitrate of soda is too much, since 320 pounds of 



