527
Hops 528
Cabbages 528

APPENDIX TO CHAPTER XXIII.

Experiments on bean-manuring 530

CHAPTER XXIV.--ON THE METHOD OF APPLICATION, AND ON THE MIXING OF MANURES.

Equal distribution of manures 531
Mixing manures 532
Risks of loss in mixtures 533
Loss of ammonia 533
Effects of lime on ammonia 535
Loss of nitric acid 536
Reversion of phosphates 537
Manurial ingredients should be applied separately 538

CHAPTER XXV.--ON THE VALUATION AND ANALYSIS OF MANURES.

Value of chemical analysis 539
Interpretation of chemical analysis 539
Nitrogen 540
Phosphoric acid 541
Importance of mechanical condition of phosphate 542
Potash 542
Other items in the chemical analysis of manures 543
Fertilisers and Feeding Stuffs Act 543
Different methods of valuing manures 544
Unit value of manurial ingredients 544
Intrinsic value of manures 545
Field experiments 545
Educational value of field experiments 547
Value of manures deduced from experiments 548
Value of unexhausted manures 549
Potential fertility of a soil 549
Tables of value of unexhausted manures. 551

APPENDIX TO CHAPTER XXV.
NOTE
I. Factors for calculating compounds from manurial
ingredients