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Published online by Cambridge University Press: 27 March 2009
The experiments reviewed in the preceding pages have been carried out on a light loam soil very poor in lime, in a district of medium rainfall (20–25 inches).
The chief conclusions drawn from the results are as follows:
1. Although the heaviest crops have been obtained with an annual application of dung, they are little heavier, and more costly to obtain, than the crops obtained with a biennial application of dung, especially if in the alternate year a light dressing of “artificials” including nitrate of soda be given.
2. A complete mixture of “artificials,” including nitrate of soda, has given good average crops, but not equal to those given by a biennial application of dung.
3. For the soil and other conditions of Garforth nitrate of soda is distinctly better for the hay crop than sulphate of ammonia. This is doubtless largely associated with the poverty of the soil in calcium carbonate.
page 197 note 1 Experimental Farm of the University of Leeds and the Yorkshire Council for Agricultural Education.
page 201 note 1 Cf. Stapledon, , This Journal, VI. 499.Google Scholar
page 201 note 2 Results embodied in thesis submitted at Final B.Sc. Examination, 1907.
page 201 note 3 Results embodied in thesis submitted at Final B.Sc. Examination, 1910. See also “Guide to Experiments at Manor Farm, Garforth,” 1914, pp. 6, 7.
page 202 note 1 Cf. Armstrong, , This Journal, 1907, II. 299.Google Scholar
page 205 note 1 eg. Hall, and Russell, , This Journal, 1912, IV. 339.Google Scholar
page 207 note 1 This Journal, 1912, IV. 305.Google Scholar
page 208 note 1 Scientific Feeding of Farm Animals, pp. 82–93.
page 208 note 2 loc. cit. p. 311.
page 209 note 1 Cf. Ingle, , This Journal, 1910, III. 22.Google Scholar
page 210 note 1 The chemical composition of the soils was more exhaustively studied but it is not proposed to deal with the results here.
page 212 note 1 Russell, , This Journal, 1910, III. 233.Google Scholar
