472 



MONTHLY JOURNAL OF AGRICULTURE. 



& Putnam — a work containing, in our judgment, 

 more agricultural science and information wor- 

 thy of confidence than any other single work in 



the English language. The following tables 

 embrace a small portion of what Johnston has 

 rej)orted respecting Guano : 



Table I. Comparative E.rpcnmcnls 7vith various svhstances vsed as Manures for growing 

 Irish Potatoes, planted 18lh May and lifted 12th October, 1842. The quantity of land in 

 carh plot was one-sixteenth of an imperial acre. 



No. 



Descriptions of Manures used, and kinds 

 of Potatoes. 



20. 



^—VVHITE DUN POTATO. 



Turnbull's humus 



Wood ashes, mixed 



Rape dust 



Turnbull's prepared bones 



Turnbull's artificial Guano 



Natural Guano 



B.— RED DON POTATO. 



Soil, simple 



Wood ashes 



N atural Guano 



Do. and wood ashes 



Do. do. and wood chaixoal . . 



TarnbuH's artificial Guano 



Do. and wood ashes 



Turnbull's prepared bones,and wood 



ashes 



Turnbull's prepared bones 



Rape dust 



Do. and wood ashes 



Potash and quick-lime, (1 lb. potash 



to 1 J tons lime) , 



Gypsum 



Salt and quick-lime, (4 cwt. salt to 



1^ tons lime 



Bone dust 



C.— CONNAUGHT CUPS POTATO. 



Soil, simple 



Bone dust 



Natural Guano 



Rape dust 



Quantity of manure 

 per acre. 



Produce in tons 

 &c. per acre. 



30 bushels. 

 30 bushels. 



1 ton 



3 cwt 



3 cwt 



3 cwt 



50 bush 



4 cwt 



4 cwt. 2.5 bush, ashes.. .. 

 4 cwt. 20 bush, charcoal. 

 4 cwt 



4 cwt. 25 bush, ashes 



4 cwt. 25 bush, ashes 



4 cwt 



1 ton 



1 ton, 25 bush, ashes 



60 bush , 



5 cwt 



60 bush.. 

 45 bush.. 



45 bush. 

 4 cwt... 

 1 ton 



tons. cwt. qrs. 



11 8 2 



12 6 2 



13 14 1 

 10 15 

 18 9 



6 15 



15 15 



17 10 



12 15 



12 15 



13 14 1 

 12 '15 

 10 



14 



13 14 

 13 



Cost of manure 



per acre, in 

 terling inonev. 



8 12 



18 



14 



3 17 



12 



6 14 

 5 16 

 8 12 



The above manures were put in with the potato cutting — no top-dressing being afterward ap- 

 plied. 



Table II. Comparative Effects of Guano, Farm-yard Manure, Gypsum, SfC. by themselves< 

 and in mixture upon Potatoes, of different varieties, planted 2bth, 26tk and 'ilth April — 

 lifted, measured and weighed from l^th to 14lh October, 1843 — on one-eighth of an iihperial 

 acre.* 



Manures. 



Guano 



Farm-yard manure. 



Guano 



Farm-yard manure. 

 Farm-yard manure . 



Gaano 



Farm-yard manure. 



Guano 



Farmyard manure. 



Gypsum .*. 



Farm-yard manure. 

 Gypsum (top-dr.) . . . 

 Farm-j-ard manure. 



Guano 



Farm-yard manure. 



Guano 



Farm-yard manure. 

 Guano 



Quantity 

 applied. 



c. yds. qrs. lbs. 

 1 14 

 2i 



2 14 



Cost of 

 Manure. 



12 

 3 



12 

 6 



Produce 

 per acre. 



tons. cwt. 

 1 19 5 



10 15 



Value of Potatoes 

 at 40s. per ion. 



36 



30 10 



28 



21 10 



Vaiiety of Potato 

 used. 



Perth*. Reds. 



Rough Reds. 



Do. 

 Cups. 



Do. 



Do. 

 Berw'ks, Blues* 

 Do. 



J^For some information as to the terms used in these tables, and in the " Lectures" by Prof Johnston, see 

 Note at the end of this communication. 

 (090) 



