|
Potash chiefly in insoluble condition in soils
|
216
|
|
Percentage of potash in plants and plant-ash
|
216
|
|
Occurrence of potash in animal tissue
|
217
|
|
Sources of loss of potash
|
217
|
|
Amount of potash removed in crops
|
218
|
|
Amount of potash removed in milk
|
218
|
|
Potash manures
|
218
|
|
|
|
APPENDIX TO CHAPTER VI.
|
|
NOTE
|
|
I.
|
Amount of potash in different minerals
|
220
|
|
II.
|
Quantity of potash obtained from 1000 lb. of different kinds of vegetation in the manufacture of potashes
|
220
|
|
|
|
PART III.—MANURES.
|
|
CHAPTER VII.—FARMYARD MANURE.
|
|
Variation in its composition
|
223
|
|
|
Made up of three classes of constituents
|
224
|
|
|
Solid excreta—
|
|
|
Its nature
|
224
|
|
|
Difference in composition of the solid excreta of the different farm animals
|
224
|
|
|
Causes of this difference
|
225
|
|
|
Percentage of manurial ingredients in solid excreta of different animals
|
226
|
|
|
Urine—
|
228
|
|
|
Its nature
|
228
|
|
|
Variation in its composition
|
229
|
|
|
Causes of this variation
|
229
|
|
|
Manurial value of the urine of the different farm animals
|
230
|
|
|
Percentage of the organic matter, nitrogen, and mineral substances in the food, voided in the solid excreta and urine
|
232
|
|
|
Comparison of manurial value of total excrements of the different farm animals
|
234
|
|
|
Nature of changes undergone by food in process of digestion
|
235
|
|
|
Litter—
|
236
|
|
|
Its uses
|
236
|
|
|
Straw as litter, and its qualifications
|
237
|
|
|
Composition of different kinds of straw
|
238
|
|
|
Loam as litter
|
239
|
|
|
Peat as litter
|
240
|
|
|
Comparison of properties of peat-moss and straw
|
241
|
|
|
The bracken-fern as litter
|
241
|
|
|
Dried leaves as litter
|
242
|
|
Manures produced by the different animals—
|
|
|
Horse-manure—
|
|
|
Amount produced
|
243
|
|
|
Its nature and composition
|
243
|
|
|
Amount of straw used for litter
|
244
|
|
|
Sources of loss on keeping
|
245
|
|
|
How to prevent loss
|
245
|
|
|
Use of "fixers," and the nature of their action
|
245
|
|
|
Cow-manure—
|
|
|
Amount produced
|
248
|
|
|
Its nature and composition
|
249
|
|
|
Amount of straw used as litter
|
248
|
|
|
Sources of loss on keeping
|
249
|
|
|
Advantages of short dung
|
249
|
