. Elements of scientific agriculture, or The connection between science and the art of practical farming ... Agricultural chemistry; Agriculture. DIRECTION IN WHICH tKAINS SHOULD RUN. 73 distances apart, according to the abundance of water and the nature of the soil. From 20 to 50 i'eet be- tween them, -would probably be the limits for most cases. It is sometimes necessary to make a little cross drain, to carry aw^ay the water from some strong spring. In all ordinary cases, the drains running straight down, and discharging into a main cross drain at the foot, are amply sufficient. Tile machine
. Elements of scientific agriculture, or The connection between science and the art of practical farming ... Agricultural chemistry; Agriculture. DIRECTION IN WHICH tKAINS SHOULD RUN. 73 distances apart, according to the abundance of water and the nature of the soil. From 20 to 50 i'eet be- tween them, -would probably be the limits for most cases. It is sometimes necessary to make a little cross drain, to carry aw^ay the water from some strong spring. In all ordinary cases, the drains running straight down, and discharging into a main cross drain at the foot, are amply sufficient. Tile machines are now introduced into this country, and tiles will soon come into extensive use. Their easy portability, their permanency w'hen laid down, and the perfection of their work, w^ill recommend them for general adoption. It is also to be noticed that it takes less time to lay them than stones, and that the ditch required for their reception is smaller and narrower. The bottom of it need only be wide enough to receive the tiles. The upper part of the earth is taken out w^ith a common spade, and the lower part w-ith one made quite narrow for the purpose, being only about four inches wide at the point. The bottom is finished clean and smooth, with a peculiar hoe or scoop (fig. 10). p.^ j^ This is necessary, because the tiles must be laid on an even smooth foundation. SECTION V. ON SUBSOIL AND TRENCH PLOUGHINGv In connection with draining, must be noticed an- other mode of mechanical improvement; this is subsoil ploughing. The subsoil plough is an implement contrived to stir up and loosen the lower soil, without bringing it to the surface. It follows the furrow of an ordinary plough, and goes dow^n as deep as it can l)e forced, in some cases from 20 to 22 inches. The sub- 7. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origin
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Keywords: ., bookcentury1800, bookdecade1850, booksubj, booksubjectagriculture
