Artificial manures; their chemical selection and scientific application to agriculture . Remark. On the plot without anymanure two vines gave only afew shrivelled grapes; in fact,the crop may be counted as no-thing. These grapes gave 12 percent, of gluccse. WrraouT AST These vines, which represent the general average of those gruwi. iii each plot, were taken up and temporarily potted*for beinj; photographed. ACTION OF FERTILISING AGENTS 339 luxuriantly green, but those in the plot which has received nopotash, and in that which has received no manure at all, a numberof copper-coloured
Artificial manures; their chemical selection and scientific application to agriculture . Remark. On the plot without anymanure two vines gave only afew shrivelled grapes; in fact,the crop may be counted as no-thing. These grapes gave 12 percent, of gluccse. WrraouT AST These vines, which represent the general average of those gruwi. iii each plot, were taken up and temporarily potted*for beinj; photographed. ACTION OF FERTILISING AGENTS 339 luxuriantly green, but those in the plot which has received nopotash, and in that which has received no manure at all, a numberof copper-coloured spots begin to make their appearance, and shortlyafterwards begin to spread very rapidly, gradually extendingthemselves over the whole of the foliage, and drying up the plantas if a burning wind had passed over it. As for the potatoesthemselves they are hardly larger than walnuts, have a peculiarlydisagreeable smell, and do not keep well. With the normal manure the crop is from 8 tons to 10 tons16 cwts. per acre, but by suppressing the potash it falls to 2 tons16 cwts. Until lately I always thought that the leguminosae and thepotato were the plants which showed a special preference for potash,but the vine distances them in this respect in a most surprisingmanner. In the
Size: 1298px × 1924px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidar, booksubjectfertilizers
