Soil Conditioners/Fertilizers

Controlled Release Fertilizers

Premium Specialty Fertilizers

Liquid Fertilizers

Turf Conditioners/Fertilizers

Mycorrhizae Products

Download Specifications

QUICK SPECS

Soil Preparation and Backfill should achieve:

  1. Increase soil fertility and increase CEC (cation exchange capacity)
  2. Achieve long-term optimum growing conditions and improve soil structure
  3. Increase water holding capacity and a deep rooting system
  4. Provide important nutrients for plant uptake

A standard soil preparation specification

Apply 150 lbs. of Gro-Power Plus* or equal and 2-3 cubic yards of high quality compost (see details) per 1000 sq. ft. Rototill a minimum of two directions, to a depth of 4-6 inches. After soil preparation, but prior to planting, irrigate with overhead irrigation so that a minimum of 1-3 inches of good quality water passes through the soil profile, beyond the root zone.

A standard backfill specification

Use 70% native onsite soil, by volume and 30% of compost (see details) with 16 lbs. of Gro-Power Plus* per cubic yard. Add Gro-Power Planting Tablets for extended feeding and conditioning.

Dig planting pits 1-1/2 times the width and 1 times the depth of the root ball. Fill pits with backfill mix to the top of the root ball and irrigate thoroughly.

HYDROSEEDING:

For ALREADY PREPPED AREAS (i.e. turf), apply 400 lbs. Gro-Power®Controlled Release (12-8-8) per acre in the slurry.For
NON-PREPPED AREAS (i.e. slopes), apply 1,000 lbs. Gro-Power®Plus and 400 lbs. Gro-Power®Controlled Release (12-8-8) per acre in the slurry.

 Based on limited information about site, plant palette, irrigation, etc.
See enclosed Hydroseeding Specifications for further recommendations.

COMPOST: Certified organic green waste compost free of any animal waste, poultry litter, sewage sludge or toxic materials and sized at -3/8 or nitrolized redwood sawdust.

*Use Gro-Power Plus w /mycorrhizae in poor nutritional soils (i.e. sub soils, sandy soils or DG) or projects that will have limited irrigation and/or no maintenance program.

The soil is where it all begins and is so vital to the success of the plant materials specified and for the overall results of the project.
We recommend a soil test on every project.

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SPECS DOWNLOADS

Specs for Native Plants 
Specs for Hydroseeding
Specs for Bioswales

SPECIFICATION REVIEW

Specification Review: We’ve been in business since 1966. Let Gro-Power’s experience work for you in making sure your specifications are up to date and correct. There is no charge for this service – we are here as a resource for you.

SOIL SAMPLING & ANALYSIS

Soil Sampling & Analysis: Complete agronomic analysis
including 18 elements, computer graphics of those elements, interpretation of analysis, and recommendations including soil preparation, backfill, hydroseeding, and maintenance specifications.

A THOROUGH SOIL ANALYSIS IS RECOMMENDED FOR BEST RESULTS ON ALL LANDSCAPE SITES….

COMMERCIAL SOIL ANALYSIS with interpretation and recommendations (include texture, organic matter, estimated nitrogen release, Phosphorus (P 1, P 2 ), potassium, magnesium, calcium, soil pH, hydrogen, cation exchange capacity, percent base saturation, soluble salts, excess lime rate, sodium and boron) WITH GRAPHICS.*

The commercial soil analysis kit includes two (2) sample bags. You may use the sample bags as needed, and complete directions and postage are included. There is no cost for the kit but the fee per basic analysis starts at $70.

Please mark each bag with your name, address, phone number and what analysis / recommendation you would like done. This is important since time is usually of the essence, and we can be sure the results are sent to the correct person in a timely manner. It would also be helpful to include any special information about the site that may affect the recommendations.

Please do not send any money with your soil sample. We will bill you when the recommendations are made.

IMPORTANT NOTE: All tests are done by independent soil testing laboratories and consulting agronomist and/or Ph.D.

RECOMMENDATIONS CAN BE MADE FROM ANY OTHER QUALIFIED SOIL LAB AT NO CHARGE. JUST MAIL OR FAX ENTIRE SOIL ANALYSIS REPORT WITH A NOTATION REQUESTING RECOMMENDATIONS.

CUSTOM SPECIFICATIONS

Site specific recommendations are always the best way to insure quality predictbale results. Whatever the specifics for your site: soil type, climate and other enviornmental factors, Gro-Power can provide custom specifications that will make your project a success.

Recommendations can be made through our contract soil laboratory or from any other qualified soil laboratory. Contact us for more information.

CUSTOM FORMULATIONS

Custom Formulations: Do you face unusual soil conditions? Gro-Power makes custom formulations of our excellent soil conditioning products to satisfy your specific soil conditions and environments.

FAQs

Why should I use Gro-Power on my projects?

  1. Gro-Power does a better job of soil preparation than anything on the market today. It’s easy to use and costs less.
  2. Gro-Power is a soil conditioner and fertilizer – the basis of building healthy soils.
  3. Gro-Power contains Humus to increase the moisture holding capacity of the soil, even sandy soil.
  4. Gro-Power breaks up heavy compacted soil, makes it easier to work.
  5. Gro-Power contains Humic Acids and soil bacteria to promote better assimilation of the plant food.
  6. Gro-Power has trace minerals too.

Where can I find general recommendations?

See “Quick Specs” for general recommendations.

What if my project calls for non-proprietary specifications?

Yes, we can write recommendations in a non-proprietary (no brand names) format. Download Performance Specs for Public Agencies Where Proprietary Specs Cannot be Used

What if my project calls for only 100% organic materials?

Gro-Power Pure ‘N’ Natural All Organic Soil Conditioner 75/20 can be used for soil preparation. You can then incorporate into the recommendations the appropriate all organic nutrient package. Also, if a mycorrhizal inoculum is required, all organic GroLife would be an excellent product.

Where can I get more information on all the available Gro-Power products?

Contact us at info@huma.us for specific product specifications or any other questions you may have.

Downloadable Resources