382 



INDEX 



Minimum, law of. 2Ra 

 Mixed fcrtilisefb. 352 

 Muntz and Girard, 19s 

 Mumv, Sir James, IJJ 

 Mussels, 75 



Mustard, ai ereen manure, 272 

 MuiUrd seed in rape calte, 240 

 Mulch, farmyard manure a^ a, 221 



Native jjuano, 246 



Nifrht soil, 244 



Nilson, 134 



Nitr.itc of lime, 44 



Nitrate of sod.i, 1 2, 307 ; action on 

 >^ili S'l 54 i compared <«iih 

 ammonium sulphate, 64, 94 ; 

 composition, 49 ; for cabKifjo, 

 316 ; in Hgypt, 47 ; source of, 

 45 ; value of soda, 53, 170 



Nilratci, sa\-ing of soil, 273 ; »oil, 

 289 



Nitric acid in rain, 29 



Nitriftcution, in spring, 90 ; in wci 

 seasons, 67 



Nitrogen, and fungoid diseases, 8f> ; 

 compounds of, in dung, 206 ; 

 contained in rain, 29 ; conver- 

 sion into ammonia, tables for, 

 377; electrical fixation of, 42; 

 fixation by calcium carbide, 38 ; 

 fixed by I.cg\imino*iP, 1 1 ; growth 



f>roportional to supply of, 28 ; in 

 001, fate of, 180; in wheat grain 

 and flour, 84 ; losses by denitri- 

 fic.ition, 185, 305 ; lost in dung- 

 making, 192 ; origin of combined, 

 30; recovered in crop, 99, 210; 

 removed in four-course rotation, 

 303 ; source of pLants', 9, 26 ; 

 value of unit, 342 ; vegetative 

 tjrowth promoted by, 77 



Niirolim, 38 



Nodule organisms, 273 



Nuclco-protcins, 140 



Nutrition, theories of, 5-fi, 1 3 



Oats, manures for, 31 1 

 Oilcake, 12, 240, 142. 345 

 Oil in manures, 72, 237 

 0,-n/iora scii/>uf, 321 

 Organic manures, value of, 94, lOO 

 Organic matter, v.alue of, in soils, 

 73 



PALissY.B^observationson manures, 

 4 



Pasture, manures for, 329 



Peat mo5$, as litter, 181, 195 ; 

 manure, 183 



Peruvian guano, 12, 1 1 5, 229, 348, 

 338, 346 ; dissolved, 235 



Phosphate rock, 115, 156 



Phosphatic guano, 115, 152 



Phosphate, conversion into phos- 

 phoric acid, tables for, 377 ; of 

 iron, 125; of lime, 104, 142; 

 Value of unit, 34 3 



Phosphates, action of lime on soil, 

 260 ; required by barley, 309 ; 

 required by turnips, 313 



Phosphatic gypsum, 134 



Phosphoric .acid, 103, 136; and 

 nitrojjen in plant, I40; conver- 

 sion into phosphate of lime, tables 

 ^or. 377 ; value of unit, 343 



Phosphrtni* in iron, 1 27 



Ph.' , 15, 169 



Pick 



Pig», . <:uy i.iun of excreta of, 181 



Plant fo<xl, dormant and available, 

 23 ; in soil and crop, 21 



Plasmolvsis, 18, 50 



Plasmi>dicfkor\t hraisutr, 259 



Pliny, 2S0 



Plots for field experiments, size of, 



36s 

 Poly halite, 160 

 Polzenius, stickstoff-kalk, 4I 

 Pol experiments, 375 

 PoUsh salts, 13 



Potash, 158 ; value of unit, 344 

 Potassium carbonate, 163 ; function 



of, in nutrition of plant, 166; 



salts, retention by soil, 164 

 Potitocs, manures fur, 319 

 Precipitated phosphate, 134, 1 52 

 Preservatives in dung-making, 200 

 Priestley, discovery of assimilation, 



6, 276 

 Pugh, source of plant nitrogen, 9 



Quality in produce, 66, 72, 81, 



269, 270, 308, 320 

 Quicklime, 250 



Rabbit hair, 71 

 Rags, II, 7a 



