146 



of soda produced as large a yield as when phosphoric acid was also 

 added; but that the best quality of fiber resulted from applying all three 

 together. "These results suggest, therefore, ihat a fertilizer containing 

 a large per cent of potash and nitrogen and a small quantity of phos- 

 phoric acid would be the most beneficial on our soils for hemp." 



Financial results. — The value of fiber from the plat fertilized with ni- 

 trate of soda and muriate of potash, calculated for 1 acre, is estimated 

 at $60, and the net profit at $24. 



Muriate vs. sulphate of potash for hemp. — The results indicate that it 

 makes little difference as to the quality^ and quantity of the yield which 

 form of potash is used. The muriate being cheaper would be prefer- 

 able. 



Form of nitrogen for hemp. — It being the opinion among hemp grow- 

 ers that a rapid, vigorous growth at the start is of the utmost impor- 

 tance, nitrogen In its most available forms only was used for compari- 

 son. Very little difference was noticeable between the effects of nitrate 

 of soda and sulphate of ammonia, but the quality was slightly superior 

 with the nitrate. 



Necessary amount of potash and nitrogen. — From trials in this direction 

 the author concludes that IGO pounds of nitrate of soda or 120 pounds 

 of sulphate of ammonia and 160 pounds of either muriate or high grade 

 sulphate of jjotash will furnish all the nitrogen and potash required; 

 whether a less quantity would be sufficient remains to be tested. A 

 commercial fertilizer containing about 6 per cent available phosphoric 

 acid, 12 per cent of actual potash, and 4 per cent of readily available 

 nitrogen is suggested for hemp on soils and under conditions similar to 

 those in the experiment here reported. 



Louisiana Stations, Bulletin No. 26 (pp. 39). 



Eeport of Si'Ai'E Experiment Station for 1889, D. N. Bar- 

 bow, B. S. (pp. 418-454). 



Potatoes (pp. 418-430). — Under this head are reported experiments 

 with varieties, fertilizers, and methods of planting. Drought seriously 

 interfered with the success of these experiments. 



Tests of varieties (pp. 418-426). — Three hundred and three varieties 

 were tested on plats ; the calculated yield per acre for each variety is 

 given in a table ; and 32 varieties of the greatest promise are briefly 

 described. The experiment indicates the influence of a particular soil 

 and climate on different varieties. Some varieties which are highly 

 prized elsewhere prov^ed a total failure at this station, while others not 

 highly esteemed in other places have done excellently here. These 

 tests will be continued. 



Experiments with fertilizers (pp. 426-428). — Cotton-seed meal, acid 

 phosphate, and kaiuit, singly and in combination, were applied to nine 

 different varieties of potatoes. The results, which are stated in a table, 

 were inconclusive as to the specific effects of the fertilizers, though pot- 



