352 EXPERIMENT STATION RECORD. 



good results in combating- this disease. Experiments with club root 

 of turnips (E. S. K., 11, p. 750) have been continued, indicating- that 

 the application of 35 to 50 bu. of air-slaked lime per acre is a practical 

 remedy. Irrigation seems to favor the development of this disease, 

 and shading has but little effect upon it. The indications are that the 

 germs of the disease will exist for a long time in the soil, even when 

 weeds, upon w^hich it abounds, are absent. Soil mav be inoculated 

 b}" using- infested turnips, either applied directly or as manure from 

 animals to which the clubbed turnips have been fed. 



Experiments 10 Itli Nltraxjlri andotJwr germ, fertilizers (pp. 367-379). — 

 A report is given of experiments in which Nitragin and Alinit Avere 

 tested on a number of crops. The Nitragin experiments were con- 

 ducted upon 11 varieties of leguminous plants, none of which gave 

 particularly striking results in favor of the substance. As a possible 

 explanation the author states that on the roots of all plants, both 

 treated and untreated, tubercles were abundant, indicating the presence 

 of a considerable amount of the organisms in the soil. Experiments 

 with Alinit were conducted on a number of plants, but the results 

 obtained gave no indication of any advantage in its use. An experi- 

 ment was conducted with various substances which were thought to 

 have an effect upon the germs in the soil whereby their growth and 

 reproduction would prpbably be stimulated. The materials used were 

 agar, ^^^ al))umen, asparagin, diastase, dextrin, and dyspepsin. The 

 plants tested were peas, beans, and oats. There seems to have been no 

 influence exerted on the crops by the different substances employed. 



Experiments with hecms (pp. 379-386). — In continuation of previous 

 experiments (E. S. R., 11, p. 751), the author reports results with the 

 eleventh and twelfth crops of beans grown continuously upon the same 

 soil. Spraying experiments were conducted, but as the crop was 

 free from disease there was little difference between the treated and 

 untreated plats. This was true both where the soil was sprayed and 

 where the plants were sprayed with fungicides. Experiments in 

 planting beans at various depths of from 1 to 5 in. showed little dif- 

 ference between the shallower plantings; beans planted 5 in. deep did 

 not grow. 



Experiments with Lima beans and peas are reported in which the 

 effect of treatment and planting on new soil was noted. 



E,i peril iients with tomatoes (pp. 387, 388). — Two varieties of tomatoes 

 were planted upon soil which had Ijorne tomatoes for the sixth succes- 

 sive time. Some of the plants were sprayed with Bordeaux mixture 

 and soda-Bordeaux mixture. But as there was little fruit rot the 

 results of spraving are not verj^ striking. A considerably greater 

 amount of green fruit was obtained at the end of the season from the 

 spra\"ed than from the unsprayed plants. 



Experiraents %oith eggplants (pp. 388, 389). — The tifth consecutive 



