. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 454 Reading-Course for Far:^iers. cost of maintenance and do not interfere with tillage. In all these re- spects they are preferable to open drains. However, there are some situations where it is desirable or even necessary to use the surface drains,— for example, where there is no proper outlet as in very low river bottoms; where the soil is especially fine textured and dense or where only a temporary effect is desired. O
. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 454 Reading-Course for Far:^iers. cost of maintenance and do not interfere with tillage. In all these re- spects they are preferable to open drains. However, there are some situations where it is desirable or even necessary to use the surface drains,— for example, where there is no proper outlet as in very low river bottoms; where the soil is especially fine textured and dense or where only a temporary effect is desired. On all land requiring drainage, the local peculiarities of the soil, sur- face topography and outlet will determine just the kind of system which. Fig. 374.—A thorough system of surface drains in a nczdy seeded grain held. should be established. Y&ry frequently the advice of one acquainted with the peculiarities of soils is necessary in choosing the correct system. Types of drai)iagc systems. Contrary to common opinion, it is not necessary to install a regular system of drains to secure large and profitable returns. I mean by this lines of tile regularly placed at intervals of 50 or 100 feet. The expense of such a system is great and a considerable period of time is required for the improvement to pay the cost. In fact, only a small part of the land in need of drainage requires such systematic treatment because the surface is generally uneven, the water accumulates in a few places or comes from a single limited source. A line of tile intercepting the supply or laid in the center of the area of accumulation, will usually remove the surplus water quickly before it has a chance to affect the. 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 original Cornell University. Agricultural Experiment Station. [Ithaca, N.
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