Research Report: FERTIL HUMUS® Soil Amendment Trial for Water Infiltration

Summary

The following research report compares increased moisture infiltration with the use of FERTIL HUMUS® at different rates and timings. It was conducted in the southern portion of the Columbia Basin in Washington State. The field, which had sandy loam soil, was pivot-irrigated as a broadcast spray, incorporated. All treatments were replicated four times in a complete randomized-block plot design. The time it took for a measured acre-inch of water to penetrate into the soil was recorded for each replication in each treatment. The times for each replication were averaged so that the influence of the treatments could be compared.

Results

Chart of average time for water infiltration

Trt 1: 1 pint/acre FERTIL HUMUS

Trt 2: 2 pint/acre FERTIL HUMUS®

Trt 3: 4 pint/acre FERTIL HUMUS®

Trt 4: 2 pint/acre FERTIL HUMUS®, followed 2 weeks later by another 2 pints/acre

Trt 5: The Grower Standard Treatment (Untreated Check)

Conclusion

Application of FERTIL HUMUS® reduces the amount of time required for water to enter the soil surface, which is beneficial in terms of reducing the risk of soil erosion, fertility movement, and evaporation loss. It also aids soil aeration and moisture uniformity within the field.

Read the entire Research Report here.

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Evaluation of PROMAX® and ZAP® on Stunt Nematodes in Turf

Research by Robert Wick, PhD, University of Massachusetts

Objectives

This study aims to assess the efficacy of Huma Gro® Turf PROMAX® followed by ZAP® to control stunt nematodes (Tylenchorhynchus) on turf.

Materials and Methods

The golf green for this study was approximately 59 years old, with a mixture of annual bluegrass and creeping bentgrass. It was located in Westfield Massachusetts and had a history of moderately high populations of stunt nematodes. The analysis of the top 4 inches of soil resulted in 86.4% sand, 10.3% silt, and 0.002% clay, which classifies this soil as a loamy sand.

PROMAX® was applied five times at two-week intervals, on May 21, June 2, June 17, June 29, and July 7. ZAP® was also applied on June 29. The treatments were applied to six randomized plots (6’ x 6’) with six non-treated controls (Figure 1). For each plot, PROMAX® (and later, ZAP®) was applied in two gallons of water using a watering can. Each plot received the equivalent of two gallon/acre PROMAX® (and later, ZAP®). Following the application, approximately 0.22 inches of water were applied to the plots.

For nematode evaluations, 10 cores were taken from each plot and bulked as one sample per plot. Nematodes were recovered by wet sieving/sugar flotation and identified to genus. Nematode assays were carried out on April 29, Jun 3, July 1, and August 4. The data were subjected to analysis of variance and a test of least significant difference (LSD).

Conclusion

Huma Gro® Turf PROMAX® followed by ZAP® significantly controlled stunt nematodes (Tylenchorhynchus) on turf.

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