Index 



239 



Loess soils, 19, 54 

 Long manure, 178 

 Losses from soil, 50 



Magnesian limestone, 226 

 Magnesium salts as manure, 163 

 Manures and fertilisers, analysis of, 



231 

 Marling, 102 

 Maryland experiments on lime and 



limestone, 225 

 Meat meal, 194 

 Mechanical analysis of soil, 13, 108, 



230 

 Milburn, experiments on lime and 



limestone, 225 

 Mixed manures, 209 

 Morison, composition of basic slag, 



150 

 Mortar rubbish as manure, 226 

 Mulching, 86 

 Murray's method of soil analysis, 



15 



New Jersey experiments on mag- 

 nesium limestone, 226 



Nitrate of lime as fertiliser, 131; 

 of potash as fertiliser, 131 ; of 

 soda as fertiliser, 128 



Nitrates, amount in soil, 43; esti- 

 mation of, in soil, 228; in soil, 

 amount at different seasons, 59 



Nitrification, 43 



Nitrogen cycle in soil, 47 



Nitrogen fixation, 44; in soils, 

 amount of, 41, 228 



Nitrogenous fertilisers, effect on 

 plants, 129, 139 



Nitrolim as fertiliser, 137 



Nitrosomonas and nitrobacter, 43 



Nobel's method of soil analysis, 13 



Oil cakes as manure, 167, 195 

 Organic matter, effect on soil, 166; 

 effect of climate in determining 

 nature of, 49; effect on pro- 

 ductiveness, 39; methods for 

 increasing, 112; origin of, 29; 

 properties of, 36, 50 

 Organisms living in soil, 46 



Palmaer phosphates, 152 



Pans, 34, 112 



Parkes on drainage, 98 



Parkinson's experiments in soil 



types, 95 

 Partial sterilisation, 46 

 Peat, 40 



Peat moss as litter, 169 

 Peat soils, 123 

 Pennsylvania, experiments on lime 



and limestone, 225 

 Perchlorates, toxic effect of, 131 

 Peruvian guano, 192 

 Phosphates, effect on crops, 143; 



estimation of, in soil, 229 ; in 



soil, 28 

 Phosphatic fertilisers, 140 

 Plant food, 11 

 Ploughing, effect of, 81 

 Ploughs, 79 

 Podsols, 56 

 Pore-space, 32 

 Potassic fertilisers, 154 

 Potassic salts, effect on plants, 



161 

 Potassium compounds in soil, 29; 



estimation of, 229 

 Prairie soils, 40 ; loss of nitrogen 



from, 42 ; agriculture on, 70 

 Protein decomposition in soil, 37 



Quartz, 19 



Quick acting manures, 166 



Kabbit waste as manure, 201 

 Kainfall map, 66 

 Rains, winter, bad effect of, 58 

 Rape cake as manure, 196 

 Reactive constituents of soil, 21, 



134 

 Red soils, 49 



Residual values of manures, 165 

 Ridging, 89 

 Rock phosphates, 153 

 Rolling, 85 



Root crop, effect on fertility, 118 

 Root development and wetness of 



soil, 10 

 Roseworthy Agricultural College 



experiments on superphosphates, 



146 

 Rotations, 106, 117 

 Russian soils, main groups, 56 



