Wallace Laboratories

365 Coral Circle
El Segundo, CA 90245
Telephone (310) 615-0116 Fax (310) 640-6863

Deutrel Industries
155 West Avenue J-5
Lancaster, California 93534

The soil used in the previous study was analyzed for sodicity (sodium problems) both by the measurement of the Sodium Absorption Ratio (SAR) and by the Exchangeable Sodium Percentage (ESP). The results are:

In addition, for the SAR values, OPEN ALL® at the rate of 1 gallon per 5-foot by 5-foot area is statistically better than water alone (probability of error factor 0.023) and statistically better than the higher rate of OPEN ALL® at the rate of 1 gallon per 1,000 square feet (probability of error factor 0.001).

For the ESP values, OPEN ALL® at the rate of 1 gallon per 5-foot by 5-foot area is statistically better than water alone (probability of error factor 0.016)

The statistical evaluations were performed with Systat version 5.0. The acceptable value of error for statistically valid data is 0.05. This means that on the average in 5% of the studies, there is no actual difference and that the apparent differences is actually caused by random fluctuations. Thus the level of 0.01 is better and 0.001 is the best.

The second study performed was the measurement of the availability of the nutrients. The procedure used is that of Soltanpour and Workman, Communications in Soil Science and Plant Analysis, Volume 10, pages 1411-1420 published in 1979. OPEN ALL® at the rate of 1 gallon per 1,000 square feet was compared to soil treated with water leaching and to untreated soil. Twenty eight elements were measured. A summary of the major differences of OPEN ALL® as compared to the other treatments are these:

For sodium:
probability of error factor 0.002 in comparison to water
probability of error factor 0.001 in comparison to untreated soil

Sincerely,

Garn A. Wallace, Ph. D.