|
|
Nature of the manure
|
478
|
|
Nitrogenous manures
|
478
|
|
Phosphatic manures
|
480
|
|
Potash manures
|
480
|
|
Nature of soil
|
481
|
|
Nature of previous manuring
|
482
|
|
Nature of the crop
|
483
|
|
Amounts of fertilising ingredients removed from the soil by different crops
|
484
|
|
Capacity of crops for assimilating manures
|
486
|
|
|
Difference in root-systems of different crops
|
488
|
|
|
Period of growth
|
489[Pg xxviii]
|
|
|
Variation in composition of crops
|
490
|
|
|
Absorption of plant-food
|
490
|
|
|
Fertilising ingredients lodge in the seed
|
491
|
|
Forms in which nitrogen exists in plants
|
491
|
|
|
Bearing of above on agricultural practice
|
492
|
|
Influence of excessive manuring of crops
|
492
|
|
|
|
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
|
