FIELD CROPS. 685 



muriate of potash showed such irregularities iu yield that it'was unsafe 

 to give conchisions. 



Comparative trial of nitrate of soda and sulphate of ammonia 

 ■with barnyard manure for sugar beets, A.. Vivier {Ann. Sci. Agron., 

 ser. 2, :2 {H^'JO), i, To. .V, 2)p- o84-3ti(i). — On 5-are (598 sq. yd.) plats, 

 nitrate of soda and sulphate of ammonia were applied at rates equiva- 

 lent to 30 and GO kg. of nitrogen per hectare. In addition each plat 

 received at the rate of 35,000 kg. of barnyard manure, iOO kg. of super- 

 phosphate, and 200 kg. of plaster per hectare. 



While the nature of the nitrogenous fertilizer did not noticeably 

 affect the yield, sulphate of ammonia gave a juice of much greater 

 density than nitrate of soda. 



Experiments in the culture and curing of tobacco, E. S. Goff 

 ( Wisconsin Sta. Up. 1895, pp. oll-316). — This is a continuation of work 

 published in the Annual Eeport of the station for 1894 (B. S. E., 8, 

 p. 303). 



Influence of distance in planting on the yield and thichiess of the leaf 

 (pp. 311-313). — Plants of the Wilson hybrid variety were set at dis- 

 tances of 1 by 1, 1 by 1^, and 1^ by 2^ ft. The results are tabulated. 

 The author states that with the closeness of planting the yield increased, 

 the size and thickness of the leaves diminished, and the percentage of 

 fillers increased. 



"Judging from the experiments of the past 2 seasons, no reason is 

 apparent why the growers of the Spanish or Wilson Hybrid tobacco 

 in Wisconsin should not set their plants in rows as near together as is 

 consistent with convenience in cultivation, and as near as 1 ft. apart 

 in the row." 



Influence of the time of harvesting tobacco upon the yield and thicTtness 

 of the leaf (pp. 313, 314). — Between August 24 and September 2 from 

 tobacco topped August G, upper leaves were i)icked and weighed daily. 

 These were cured on wire lath in the curing house, all taken down at 

 once, the leaves weighed separately, and the comparative thickness 

 determined. The results are tabulated. The author says: "The ten- 

 dency of the leaf to become thick as the time after topping increases 

 is manifest to the extent of something over G sq. ft. of surface to the 

 pound in favor of the leaves from the earliest topped plants as com- 

 pared with the latest;" also in regard to further tabulated data obtained 

 from portions of the main crop, "It is evident that in this trial the 

 thickness and dry matter of the leaf tended to increase up to 32 days 

 after topping. The yield also showed a tendency to increase in like 

 manner." 



A repetition of the curing experiments of 1894 (pp. 315, 316). — The 

 recommendations given in 1894 are briefly as follows: 



"Hang the tobacco moderately close, using care to so distribute the plants on the 

 laths that no open spaces or flues will be left for the ready ascent of air from the 

 bottom of the building to the top, and then so regulate the ventilation with the aid 



