INDEX 



255 



1 Intensive agriculture, 53. 

 ; Irrigation, 83. 



i Kainit, 148. 



Land, Amelioration of, 73. 

 . Land drainage, 74. 

 i Law of Minimum, 106. 



Leguminosae, Effects of phos- 

 phates on, 131. 



1 Leguminous plants and nitro- 

 gen, 67. 



'. Lime, Nitrate of, 124. 

 i Lime removed from soil, 59. 

 ' Lime, Slaking of, 15. 

 j Limestone, 94. 

 j Liming, 91. 



Loam, Properties of, 57. 



" Lodging " of cereals, 250. 



i Mangels and nitrate of soda, 154. 

 j Mangels and potash, 154. 



Manure, Farmyard, 173. 



Manures, Nitrogenous, 110. 

 i Manures, Phosphatic, 125. 

 1 Manurial elements, 107. 

 i Manuring, Green, 51. 

 I Manuring, Principles of, 99. 

 I Market gardening, 53. 

 I Marling, 89. 

 I Meat meal, 147. 

 I Mendelian breeding, 238. 



Mendel's Law, 239. 

 I Mineral plant food, 34. 

 I Muriate of potash, 151. 



Mutation, 234. 



Nitrate of lime, 124. 



Nitrate of soda and sulphate 



of ammonia compared, 111. 

 Nitrate of soda, Valuation of, 



118. 



Nitrates, Formation of, 61. 

 Nitrification, 61, 98. 

 Nitrogen and ammonia, 121. 

 Nitrogen.Fixation of, by soil,45. 



Nitrogen in atmosphere, Com- 

 bined, 70. 



Nitrogen-fixation by plants, 67. 



Nitrogen- fixing free organisms, 

 71. 



Nitrogenous manures, 110. 



Nitrolim, 124. 



Nodules on roots, 67. 



Norfolk four-course shift, 203. 



Organisms in soil, 71. 

 Oxidation, a source of heat, 43. 

 Oxygen as a weathering agent, 



18. 



Participate inheritance, 237. 

 Peruvian guano, 160. 

 Phosphate, Reverted, 167. 

 Phosphates and phosphoric 



acid, 138. 



Phosphatic guano, 147. 

 Phosphatic manures, 125. 

 Phosphoric acid, Absorption 



of, by soil, 45. 



Phosphoric acid and phos- 

 phates, 138. 



Plant breeders, Early, 235. 

 Plant-breeding, 232. 

 Plant food, Absorption of, by 



soil, 44. 

 Plant food, Essential elements 



of, 106. 

 Plant food, Fixation of, by 



soil, 44. 



Plant food, Mineral, 34. 

 Plant food in soil, 102. 

 Plants effected by climate, 225. 

 Potash,Absorptionof,bysoil,45. 

 Potash manures, 147. 

 Potash and sulphate of potash, 



148. 



Potash and potassium, 151. 

 Potato disease, 228. 

 Potatoes in rotation, 212. 

 Potatoes, Raising new, 230. 



