»4 



beans. The lest of 1917 was made on a poor, deep, 

 sandy soil, the fertihty of which gradually increased 

 from one side of the experiment to the other, as is 

 sliown by the gradual increase in yield of the check 

 plots. The 1918 test was on a fertile, loamy soil and 

 followed a heavy crop of crimson clover plowed under 

 in March for soil improvement. The fertilizer, except 

 lime, was applied in the drill at planting time and 

 "mixed with the soil. The lime was scattered broadcast 

 over the i)lot and harrowed in the surface. 



Table II. — The Yield of Soy Bean Seed, Straw and Hay 

 from the Use of Different Kinds of Fertilizers 



FERTILIZER 



i9i: 



1918 





KIND OF 

 FERTILIZER 



C/5 



o « 

 !i § S 



1 



2 

 3 

 4 

 5 

 6 

 7 



-8-! 



10 



11 



12 

 13 



Lbs. 

 00 

 240 

 200 

 200 

 100 



2000 

 00 

 240 

 200 

 240 

 20O 

 200 

 200 



2000 



240 

 00 



No fertilizer 



Acid phosphate 



Kainit 



Cotton seed meal _ 



Nitrate of soda 



Slacked lime 



No fertilizer 



Acid phosphate . 



Kainit 



Acid phosphate- 

 Cotton seed mea 



Kainit 



Cotton seed mea 

 Fine ground lime 



stone 



Basic slag 



No fertilizer 



1 \ 



Lbs. 

 5112 



5088 

 4440 

 4224 

 4944 

 4752 

 4800 

 4848 



4320 



."^984 



4512 

 4680 

 4800 



Lime gave a small increase in grain; of the two 

 forms of limr. (slacked and fhie ground limestone) the 

 former gave the l)etter results. Acid i)hosphate, kainit 

 and nitrate of soda gave no apj)reciable increase. On 

 poor soil cottonseed meal increased the yield of grain 

 sulTieient to more than pay for its cost. 



The large yield of grain, straw and hay in the 1918 

 test was (hie largely to the favorable seasons and the 

 heaw cover crop of crimson clover plowed under in 

 the spring for soil improvement. 



