Chapter XXIII: Manuring of the Common Farm Crops

Cereals 493
Especially benefited by nitrogenous manures 494
Power of absorbing silicates 494
Barley 495
Period of growth 495
Most suitable soil 496
Farmyard manure not suitable 497
Importance of uniform manuring of barley 497
Norfolk experiments on barley 497
Proportion of grain to straw 498
Wheat 499
Rothamsted experiments 500
Continuous growth 500
Flitcham experiments 500
Oats 501
A very hardy crop 502
Require mixed nitrogenous manuring 502
Arendt's experiments 503
Avenine 503
Quantities of manures 504
Grass 504
Effect of manures on herbage of pastures 505
Influence of farmyard manure 506
Influence of soil and season on pastures 507
Manuring of meadow land 508
Bangor experiments 508
Norfolk experiments 509
Manuring of permanent pastures 509
Roots 510
Influence of manure on composition 512
Nitrogenous manures increase sugar 512
Amount of nitrogen recovered in increase of crop 513
Norfolk experiments 513
Manure for swedes 514
Highland Society's experiments 515
Manuring for rich crops of turnips 516
Experiments by the author on turnips 516
Potatoes 517
Highland Society's experiments 518
The Rothamsted experiments 519
Effect of farmyard manure 520
Manuring of potatoes in Jersey 521
The influence of manure on the composition 521
Leguminous crops 522
Leguminous plants benefit by potash 523
Nitrogenous manures may be hurtful 523
Clover sickness 524
Alternate wheat and bean rotation 524
Beans 525
Manure for beans 525
Relative value of manurial ingredients 526
Gypsum as a bean manure 526
Effect of manure on composition of crop 527
Peas 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