Watertable control

（重定向自Agricultural drainage）

Figure 2. Crop yield (Y) and depth of water table (X in dm)

Figure 3. Positive and negative effects of land drainage

Figure 4. Example of effects of drain depth

Watertable control is the practice of controlling the water table in agricultural land by subsurface drainage with proper criteria to improve the crop yield.

单词	Agricultural drainage
释义	Agricultural drainage 英语百科 Watertable control （重定向自Agricultural drainage） Watertable control is the practice of controlling the water table in agricultural land by subsurface drainage with proper criteria to improve the crop yield.
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