INDEX 



111 



Florida pebble phosphate, 8, 16, 21 

 effect of, on accumulation of nitrogen 

 in the soil, 77; on herbage, 35; fine 

 grinding on availability of, 33 

 field experiments with, 27, 30 et seq. 

 Florida soft phosphate, 21 



field experiments with, 31 

 Fluorspar, 6 

 Fred, E. B., 86 



Gafsa phosphate, 8, 16, 21 



effect of, on accumulation of nitrogen 

 in soil, 77 ; on botanical composition 

 of herbage, 28, 35, 50 et seq. ; rain- 

 fall on availability of, 44; soil acidity 

 on availability of, 47 

 field experiments with, 32 et seq. 

 Gilchrist, D. A., 3, 15, 49, 101, 104 

 Grazing and cutting, effect of, on com- 

 position of herbage, 62 

 Great Mulgraves. See Horndon 



Hammer, B. W., 86 

 Hart, E. B., 86 

 Hassobury 



field experiments with various phos- 

 phates at, 26 



limiting manurial factors at, 95 

 Hay 



effect of rainfall on yield of, 89 et seq. 

 factors limiting yield of, 89 et seq. 

 yield of, at experimental centres, 18 et 



seq. 



Hoffman, C., 86 



Holcus lanatus, 50, 51, 54, 56, 57 

 Hopkins, C. G., 11, 12 

 Hordeum pratense, 36 

 Horndon, 39, 40 



accumulation of nitrate in soil at, 77 et 



seq. ; of nitrogen in soil at, 76 

 effect of grazing on herbage at, 62; of 

 phosphates on bacterial content of 

 soil at, 86; on herbage at, 35, 58; 

 on soil moisture at, 63; on soil tem- 

 perature at, 68; on soil texture, 73 

 field experiments with various phos- 

 phates at, 30 et seq. 

 influence of rainfall on yield of hay at, 



89 et seq. 



Hutchinson, H. B., 99 

 Hydrogen ion concentration, 26, 99 et 



seq. 

 Hypochaeris radicata, 36 



Iron sulphate. See Ferrous sulphate 

 Jamieson, 15 



Kirkman, 1 



Lambourne End 



accumulation of nitrate in soil at, 77 

 effect of phosphates on herbage at, 54 

 field experiments with various phos- 

 phates at, 39 

 Latchingdon 



accumulation of nitrogen in soil at, 76 

 effect of continuous cutting on herbage 

 at, 62; of phosphates on herbage at, 

 39, 59; on soil texture at, 73; of rain- 

 fall on yield of hay at, 89 et seq. 

 field experiments with various phos- 

 phates at, 37 

 Lawes, Sir John, 1 

 Leontodon hispidus, 36 

 Liebig, 1 

 Lime 



effect on clover plant, 61, 105; on 

 herbage, 58, 59, 61; on yield of hay, 

 31, 96 

 Lime requirement, effect of basic slag on, 



of soil, 99 et seq. 



Lolium perenne, 36, 50, 51, 56, 57 

 London clay, field experiments with 

 various phosphates on, soils, 30 et seq. 



MacLennan, K., 99 

 Martin's Hearne, 45 



accumulation of nitrates in the soil at, 



77; of nitrogen in the soil at, 76 

 clover failure at, 96 

 effect of lime on yield of hay at, 96; 

 of phosphates on herbage at, 49, 59; 

 on soil bacteria at, 86 ; on soil mois- 

 ture at, 71; on soil temperature at, 

 71; on soil texture at, 73; of rainfall 

 on yield of hay at, 89 et seq. 

 field experiments with various phos- 

 phates at, 24 



limiting manurial factors at, 96 

 Middleton, Sir T. H., 3, 49, 77 

 Mineral phosphates. See Rock phos- 

 phates 

 Moisture, effect of phosphates on soil, 63 



Nitrates, estimation of, 78 

 effect of phosphates on accumulation 



of, in soils, 77 et seq. 

 Nitrogen 



effect of various phosphates on accu- 

 mulation of, in soils, 75 

 fixation by nodule organism, 49 



Ocean Island phosphate, 8 

 Oldershaw, A. W., 15 



