FIGURE 20. EFFECT OF PASTURE IMPROVEMENT IN
PREVENTING SOIL EROSION AND IN INCREASING ABSORPTION OF WATER BY
The SOIL
1, Pasture treated with superphosphate; 2 and 3, pasture
untreated; 4, soil from same field but without protective turf
This exhibit, staged during Cornell Farm and Home Week in
February 1935, shows the loss of water and soil by runoff from
the surface (large bottle) and by percolation (small bottle)
after the application of water equivalent to 1/2 inch of rain per
day for 5 days, on a 25-per-cent slope
FIGURE 21. METHOD OF DETERMINING LOSS OF WATER
BY RUNOFF FROM THE SURFACE
These are the pasture experimental plots at the Soil Conservation
Service Experiment Station in the Arnot Forest near Ithaca, New
York
20
