plant-roots

That a certain quantity of carbon may be obtained from the carbonic acid absorbed by plant-roots, is indeed probable.

Manures and the principles of manuring Charles Morton Aikman

It may be taken as certain that the tangled condition of plant-roots is due to the resistance offered by the soil-particles, and that the natural tendency of the plant-root is to grow downwards.

Manures and the principles of manuring Charles Morton Aikman

The importance of having plant-roots as widely developed in the soil as possible, will be at once seen when we reflect that this means that the area of soil from which the plant derives its soil-food is thereby greatly increased.

Manures and the principles of manuring Charles Morton Aikman

On the other hand, however, a soil must not possess too great compactness, otherwise the plant-roots will experience a difficulty in pushing their way downwards.

Manures and the principles of manuring Charles Morton Aikman

In this connection the action of plant-roots in permitting a more abundant access of air to the lower layers of the soil, and thus promoting nitrification, is worth noticing.

Manures and the principles of manuring Charles Morton Aikman

This is especially the case during the earlier periods of growth, when the plant-roots are as yet extremely tender, and experience great difficulty in overcoming much resistance.

Manures and the principles of manuring Charles Morton Aikman

Action of plant-roots in promoting nitrification 181

Manures and the principles of manuring Charles Morton Aikman

A department of vegetable physiology which has had much work devoted to it is the method in which plant-roots absorb their food.

Manures and the principles of manuring Charles Morton Aikman

The whole question of the influence of the mechanical condition of the soil on the development of plant-roots is one of the highest importance and interest, and is not so generally recognised as it ought to be.

Manures and the principles of manuring Charles Morton Aikman

It is a strange fact, and one worth noticing in this connection, that the power plant-roots have of drawing their moisture from a soil, seems to depend on the retentive power of the soil.

Manures and the principles of manuring Charles Morton Aikman