FODDER CORN. 41 



The figures leave no doubt as to the importance of potash, phosphoric 

 acid and nitrogen to cotton." 



Potash: "The importance of potash in combination with the other 

 two constituents is unmistakably established. It increased the yield 

 of lint by 95 lbs. at Spartanburg and 108 lbs. at Darlington; the 

 average increase for the two farms is 102 lbs. 



"Dealing with the combined averages of the two farms for the 

 three years, and taking the average of the unfertilized plots as one, it 

 appears that potash with the other constituents nearly quadrupled it. 



"The enrichment of the impoverished soils is the work, not of 

 months, but years, and can only be economically accomplished in our 

 climate by turning under green crops and other forms of vegetable 

 matter in connection with applications of fertilizers." 



FODDER CORN. 



MASSACHUSETTS State Station). 1886. 

 By C. a. Goessmann, Director. Fourth Annual Report. Phosphoric 

 acid or nitrogen had little or no effect upon the yield, while potash. 

 , produced an increase of 300 per cent, and more. 



(Concerning trials in 1885): "It was noticed that the applications 

 of potash compounds alone, muriate of potash leading, had exerted h 

 marked effect on the quantity and the quality of the corn fodder 

 raised, increasing the previous annual yield not less than 100 per cent, 

 above that of the preceding year. 



"In sight of these facts, it seems but justifiable to conclude, that a. 

 deficiency of the soil in available potash had controlled in our case, 

 more than that of any other essential a-rticle of plant-food — the final 

 yield of the crop. 



"As the cultivation of grasses and fodder corn affects the manurial 



resources of the soil in a similar direction , by abstracting approximately 



one part of phosphoric acid to four parts of potash, it is but a natural 



result that a soil which originally did not contain more of available 



potash than of available phosphoric acid, must become unproductive 



before the latter is exhausted. In case circumstances necessitate a 



direct succession of these crops, it is well to remember the fact, and to 



provide against a failure by applying to the soil liberally, in particular, 



potash compounds in some form or other. Muriate of potash deserves 



recommendation." 



1886. 



"Th*e good service of potash compounds is still remarkable." 



