在农田水分平衡中，较难测定的要素有农田蒸腾蒸发量、地下水毛细上升量和土壤水渗漏量。

Of all components of water balance in farmlands, evapotranspiration, capillary rise from a water table and deep percolation are difficult to determine.

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然后进行储水系统土样的试验，包括土样的渗透系数测定试验和毛细水上升试验。

Then it carries on soil sample the experiment of the storing water system, including penetration coefficient determination experiment and capillary water rising experiment of the soil sample.

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然后进行储水系统土样的试验，包括土样的渗透系数测定试验和毛细水上升试验。

Then it carries on soil sample the experiment of the storing water system, including penetration coefficient determination experiment and capillary water rising experiment of the soil sample.

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