Elements of practical agriculture; comprehending Elements of practical agriculture; comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm elementsofpracti00lowd Year: 1838 DRAINING. 1D7 ilrains are very apt to be choked. Sometimes, indeed, the channels formed by the water remain, when there is a consider- able current, long after these materials have decayed. But this cannot be depended upon, and such materials, therefore, ought not to be used if better can be obtained. Sometimes a species of draining, termed Wedge-draining, has been emplo
Elements of practical agriculture; comprehending Elements of practical agriculture; comprehending the cultivation of plants, the husbandry of the domestic animals, and the economy of the farm elementsofpracti00lowd Year: 1838 DRAINING. 1D7 ilrains are very apt to be choked. Sometimes, indeed, the channels formed by the water remain, when there is a consider- able current, long after these materials have decayed. But this cannot be depended upon, and such materials, therefore, ought not to be used if better can be obtained. Sometimes a species of draining, termed Wedge-draining, has been employed. The general method of performing this is to form a narrow trench with a long nar- Fig. 115. row shovel. The spit being taken out as deep as the shovel can go, a scoop is em- ployed to clear out the mud and loose earth at the bottom. Then another spade narrower than the first is used, and a second spit taken out, and lastly a cor- responding shovel still to clear the whole out,—forming a trench with a ledge as in Fig. 115. A piece of sod, with the grass side below, is then forced down, and resting upon the ledge, a space is left for the water below. Sometimes the ledge is dispensed with, and the sod is merely formed into a wedge, narrowed towards the grassy side, and this, when the little trench is cleared out, is pressed into it and covered with earth; and as it does not reach the nar- row bottom, a channel remains below, through which the water percolates. This simple species of drain has been extensively adopted in some districts ; and as it is easily formed, and as the number of drains may be multiplied at little expense, considerable be- nefit has resulted from the use of it. But although drains of this kind will sometimes remain open for a considerable time, they are exceedingly apt to be closed up; on which account, the use of tile is in most cases to be preferred.
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