POTATOES. lA 



The importance of green-manuring in cotton culture has been es- 

 tablished by Station experiments and by practical planters. The 

 ''plowing under" of leguminous crops not only improves the me- 

 chanical condition of the soil, but at the same time adds a large 

 amount of nitrogen, thus making the expense of artificial fertilizers 

 considerably less. The cultivation of crimson clover and cow-peas 

 is rapidly spreading in the cotton belts of the South. It has been 

 found a profitable practice to sow among the cotton plants at last 

 cultivation 15 lbs. per acre of crimson clover seed. This does not 

 interfere with the maturing of cotton, while it prevents the land from 

 leaching during heavy winter rains, besides preserving and retaining 

 valuable nitrogen in the soil. In order that crops of crimson clover 

 and cow-peas may grow vigorously, and to obtain an abundant supply 

 of nitrogen, it is necessary that they be properly supplied with potash 

 and phosphoric acid. 



The attention of cotton planters is called to the results obtained 

 with potash upon cotton crops at the Alabama, Mississippi, and South 

 Carolina Experiment Stations. In South Carolina 500 to 1000 lbs. of 

 a fertilizer containing 4 per cent, nitrogen, 10 per cent, phosphoric 

 acid and 4 per cent, potash produced good results upon clay soil, and 

 upon a sandy soil in the East. The same quantities are found profit- 

 able in North Carolina and Georgia. 



In some sections the planters suffer heavy losses from leaf-blight of 

 cotton. Prof. Atkinson's experiments on the Experiment Station 

 farms in Alabama show that, by the use of kainit (400 lbs. per acre) 

 leaf-blight is largely, if not entirely, prevented, and the yield of 

 cotton increased. The use of kainit for this purpose is now becoming 

 the recognized remedy, and cotton planters will find it invaluable. 



POTATOES. 



There is no doubt about the need of potash for a good potato crop. 

 The presence or the absence of potash will determine the yield of 

 tubers. 



A few words as to the effect of the different forms of potash salts: 

 Sulphate of potash or sulphate of potash magnesia always produces 

 a good quality of potatoes, while the salts containing chlorine, that is, 

 kainit and muriate of potash, may lessen the amount of starch ancj 

 thereby produce potatoes of inferior quality. 



