571 



Manurial reqiih-cmentu of sitfjar-caxe (pp. ]2'^i-142). — TIic problems 

 connected with the use of feitilizers on siiffar-cane in Louisiana are dis- 

 cussed. In j?cneral the experiments of the past 5 years bj' the station 

 have indicated that the soils of the State require the application of 

 nitro<?en and phosphoric acid to i?ro\v large cro[)S of sugar-cane, but 

 that potash cau not be profitably used. Cow-peas and cotton-seed meal 

 are chiefly relied on to furnish the nitrogen. ]>ut the experiments in 

 Louisiana and Earbadoes point to the fact that a large tonnage of cane 

 is associated with a low sugar content, and it still remains to be deter- 

 mined how to so apply fertilizers as to get the best results in available 

 sugar. Special potasli, phosphoric acid, and nitrogen experiments were 

 tried at Audubon Parle, where the Sugar Station is now locate^, for the 

 first time in 1890, The plan followed was similar to that used in pre- 

 vious exiK'riments by the station as recorded in Bulletin No. 20 (See 

 Experiment Station llecord, Vol. I, p. G^). The results stated in tables 

 were rightly deemed inconclusive. Experiments in this line will be con- 

 tinued. 



Louisiana Stations, Bulletin No. 7 (Second Series), January, 1891 (pp. 24). 



Eeport of Louisiana State Station for 1800, D. J^, Barrows, 

 B. S. (pi). 14;;-1 (>(>). — Experiments with corn (pp. 14G-152). — These in- 

 clude a test of varieties, and experiments with fertilizers and with 

 methods of planting and cultivation. 



Corn, test of varieties. — Tabulated data are given for 12 varieties 

 grown in 1800. During the past 3 years Mosby, Blount's Prolific, and 

 McQuade have been among the most productive varieties at the sta- 

 tion. Golden Dent and Young's Hybrid, newly introduced varieties, 

 were the best in 18!>0. 



Corn, experiments icith fertilizers. — Various combinations of kainit, 

 muriate, sulphate, and nitrate of potash, acid phosphate, cotton seed, 

 cotton-seed meal, dissolved bone, bone meal, gypsum, nitrate of soda, 

 sal ammoniac, dried blood, and fisli scrap were used for Ped-Cob Gourd- 

 Seed corn. The results as stated in tables are not conclusive, but hint 

 that phosphoric acid is "the most imi)ortant element of plant food for 

 corn on these bluff soils." 



Corn, methods ofplantinr/ and enliivation. — McQuade corn was planted 

 on a level plat, 225 by 7G feet, and covered with a smoothing harrow. 

 After the corn was up the harrow was run over the plat twice at an 

 interval of 3 weeks. On half the plat the corn was thinned to 1 stalk to 

 the hill and on the other half to 2 stalks to the hill. After this cotton- 

 seed meal and acid phosphate were applied to half of each portion of 

 the plat representing the two degrees of thickness of planting. The 

 yield per acre where there were 2 stalks to the hill averaged 04 bush- 

 els, and where there was 1 stalk to the hill, 42 bushels. The fertilizers 

 I)roduced very little efiect. 



