37 



The coiulusious dniwu bv Mr. Staab from this experi- 

 ^ueiit and from previo-us lexperience are here quoted: 



'•1. That 50 to 100 pounds of fertilizer per acre is not 

 ^sufficient to mature a full crop. 



2. That even the heavvv applications do not pay unless 

 ^tlie ground contains considerable humus. 



S. That i)hosphatic fertilizers in connection with cotton 

 'seed meal or cowpeas, or weeds turned under green will pay 

 better than nine-tenths of the fertilizers commonly used. 



4. That heavy applications help crops into quick ger- 

 inination and more rajtid growth, lessening expense for 

 hoeing. 



5. That a reduction of acreage and adequate increase of 

 tnanures are advisable. 



G. I do not find kainit of nearly the value it is advertised ; 

 In times of drought it shows for itself by the wilting of 

 'foliage. This is ameliorated by a mixture of cotton seed 

 nneal and acid phosphate.^' 



Increase of seed cotton per acTe when cotton seed meal was added: 



To unfertilized plot 32 lbs. 



To acid phosphate plot . . . ■. 204 lbs. 



To kainit plot 252 lbs. 



To acid phosphate and kainit plot 372 lbs. 



Average increase with cfetton seed meal 215 lbs. 



increase of seed cotton per acre when acid phosphate was added: 



To unfertilized plot • 232 lbs. 



To cotton seed me&l plot 404 lbs. 



To kainit plot 184 lbs. 



To cotton seed meal and kainit plot 304 lbs. 



^Average increase \vith acid ptnoephat* 282 lbs. 



I 



