54 EXPERIMENTS CPON WHEAT, [Appendix 



Remarks.— Spring Wheat after Turnips, South-Lawn. Soil loamy clay ; subsoil clay 

 Drained every furrow before breaking up from old grass in the autumn of 1839 ; ploughed 

 deep and subsuiled in spring of 1841. Wheat sown 5th February, 1842 ; manures applied I3th 

 May; crop cut 24th August; and thrashed 10th September, 1842. The quantity of land in 

 each plot was one-eighth of an imperial acre. 



2°. The object of the second series, made at Barochan, was to ascertain tho 

 relative effect of certain mixed, chiefly saline ^ manures applied as top-dressings to 

 winter wheat. 



Results of Experiments with various substances used as top dressings, upon Winter Wheat. 

 Dressed 9th May, and cut 7th September, 1842. The quantity of land in each plot teas one- 

 sixteenth of an imperial acre. 



No. 



crook's farm, 

 barochan. 



Description of 

 Top Dressings. 



Nothing 



Natural Guano.. . 

 Turnbull's Artificial 



Guano 



Common Salt 



Sulphate of Soda. . . 



Nitrate of Soda 



Common Salt 



Dissolved Bones. . . 



Rape-dust 



Sulphate of Magnesia 



3f.S 



510 



^ 2 «^ 



.2." . w 



lbs. 

 95 

 115 



80 

 101 



90 



110 



lbs. 

 160 

 230 



175 

 150 



190 

 170 

 200 



s. d. 

 

 4 4^ 



11 !|l 



^ 00 -es 



3 £ t3 



bush. lbs. 



24 56 



30 40 



24 56 



21 27 



26 30 



% 54 



28 24 



lbs. 

 2560 

 3680 



2800 

 2400 



3040 

 2720 



Remarks. — The soil is a heavy loam, incumbent upon a deep clay. The wheat was sown 

 at the end of November, 1841, after a crop of yellow turnips. The turnips were manured 

 with 20 tons of town dung per acre. Owing to the severity of the winter of 1841 and spring 

 of 1842, the plants were very thin upon the ground. In April, 1842, it was sown down with 

 grass seeds, harrowed and rolled, after which it tillered and gradually recovered. At the 

 time the dressings were put on there was rain, but in general it teas dry weather after, and 

 in consequence the top-dressings did not produce such great results as they did in 1841. The 

 field was examined from time to time, and the appearance of each experiment as noted 

 down is fully borne out by the results given in the table, viz. : — No. 1 was taller in the straw, 

 longer in the ear, and of a darker green colour than any of ihe others ; No. 6 was next, and 

 No. 4 was third. In point of appearance there was in the others no perceptible difference 

 from the general crop, except No. 3, which appeared to have checked the growth of the 

 plants, and from this ch^ck they scarcely recovered all the season. It is however remarka- 

 ble that wherever common salt was applied the grain was heavier per bushel. It will be 

 observed, with reference to the experiment upon wheat grown on this land last year, that the 

 application of common salt had a very great effect, and would probably have also benefitted the 

 general crop this year, had it not been for the extraordinary drought of the season (see Appen- 

 dix, p. 17.) 



3°. The object of the third series, made by Mr. Burnet, of Gadgirth, nea 

 Ayr, was the same as those of Mr, Fleming. The mixtures employed, how- 

 ever, were different, and the tabulated results are at least equally interesting, 

 and satisfactory. 



Results of Experiments with mixed Manures used as top-dressings upon Winter Whea 

 (Eclipse variety), sown 29th October, 1841, and reaped 15th August, 1342. The quantity 

 of land in each plot was one-fourth of an imperial acre. 

 The soil a loam, with subsoil of clay ; tile-drained and trench-ploughed. Had been in 



beans the year previous, and had no manure with that crop nor with the wheat, except the 



above applications, harrowed in in spring. No. 6^ at a cost of JE2. 4s,, has produced an m> 



crease over No. 1 of £6. 19s. 3i. being a ^-ain of i,4. 15s. 3d. 



