50 



EXPERIMENT STATION RECORD. 



tins salt. The author, while stiidyiug the presence of sugar in musli- 

 rooms, met with chlorate of potash in iiiauj^ species, a list of 22 being 

 given. It is most abundant in Amanita plialloides and Boletus cynes- 

 cens, where he found as much as 0.5 per cent of the salt in the fresh 

 mushroom. 



Analyses of fruit trees, P. Collier {Ne?v YorJc State Sta, Rpt. 1S92, 

 2)p. 173-209), The relation of i)arts of the tree, composition of the ash 

 of the various parts, and the calculated amounts of the various ash 

 constituents per tree or shrub are given for 3 varieties of apples, 4 of 

 cherries, 8 of peaches, 2 of crab apples, 8 of pears, 4 of plums, and 2 

 of quinces, and a mixture of varieties of grapeviues. The data are 

 fully tabulated. It is evident that young nursery stock is under con- 

 sideration, for it is estimated that " with rows 4 feet apart and trees 1 

 foot apart in row there would be on an acre 10,890 trees, weighing 

 23,299 lbs., or over 11 tons." Taking the average composition of the 

 nursery stock named, the asb in the 11 tons would contain approxi^ 

 niately the following amounts of ingredients: 



Mineral matter removed hj vttrsenj stool' pet' acre. 



Pounds. 



Silicic acid , , 51.63 



Pliospboric acid 19. 71 



Sulpliuric acid .. 10.88 



Chlorine , 1. 49 



Ciirboiiic acid (estimated) 117. 40 



Ferric oxido 3. 93 



Pounds. 



Lime 160.09 



Magnesia 20. 60 



Soda 11.62 



Pota.sli 21.01 



TotaJ 448.36 



For comparison the mineral ingredients removed by cereal crops are 



given. 



" Since upon an average it requires from 3 to 4 years to grow the crop of nursery 

 stock the cereals make a far greater demand upon the soil than the growing of 

 nursery stock, and it is a matter of common observation that the removal of a crop 

 of trees leaves the soil in excellent condition for the growth of cereals." 



The results of experiments during four years in fertilizing the 

 grapevine, E. Zacharewicz {Prog. Agr. et Vit., 11 {1894), No. 1, 

 2)j). 17-24; No. 3, pp. 02-68; No. 6, pp. 143-150). — The experiments 

 reported were carried out on a number of farms in France during a 

 period of 4 years. On each farm used, 18 plats Avere laid out, each 

 plat usually consisting of 100 vines. The fertilizers used were nitrate 

 of soda, nitrate of potash, sulphate of ammonia, sesame cake, chloride 

 of i>otash, sulphate of potash, carbonate of potash, sui)erphosphate, 

 and gypsum, applied in various combinations. 



On most soils nitrate of soda proved the best form of nitrogen. On 

 a soil rich in nitrogen and in potash and moderately rich in acid phos- 

 phate, nitrate of soda produced a luxuriant vegetation to the detri- 

 ment of the crop of grapes. Here sulphate of ammonia was found to 

 be more advantageous; i)otash in its several forms lU'oduced no con- 

 sx)icuous effect. 



