The factors were weighted as follows: Deep percolation (27.
This practice increases deep percolation rates and drainage conditions compared to naturally occurring soils.
To reflect the mixing of soil horizons in the calculation of the deep percolation factor, the depth-weighted average of K[sub.
Operational times should be worked out in such a way that both excessive flooding and deep percolation
Due to the difficulty of measuring the amount of deep percolation during the canola season, an estimate was made based on the meteorological data.
Where: R is the precipitation, ET is the evapotranspiration, DP is the deep percolation and DR is the drainage.
Cahn, UC Cooperative Extension Monterey County, personal communication) and, as is discussed below, most of the irrigation season deep percolation occurred as a result of the early-season irrigations used to establish the crop.
Similarly, applied water deep percolation during the irrigation season ranged from about 15 to 18 inches, with the average amount at the test sites a little over an inch greater than that at the control site.
In Figure 1, there are no deep percolation losses for all lengths of furrow, but this does not mean the independence of DPR from the length of furrow.
In the second scenario, losses due to deep percolation are the most important efficiency, and deficit irrigation status is again established.
Effective rain (plus irrigation for grapevines) minus plant consumptive use that was in excess of available water storage capacity in soil in the root zone became deep percolation or groundwater recharge.
During the 13 years, there was on average a very small groundwater demand of roughly 15 millimeters per year; this small demand was largely due to the deep percolation of winter rain.