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Spectrum Soil Inoculant

Spectrum Soil amendment contains a multiple species blend of plant growth promoting rhizobacteria (PGPR) and other beneficial plant growth promoting microorganisms (PGPs). This specially formulated soil inoculant enhances and restores beneficial soil microbe populations to augment the natural organic processes that occur in healthy soils.

The beneficial soil-based microorganisms in Spectrum break down and release vital nutrients (such as phosphorus, nitrogen, calcium, iron, and more) stored in soil particles, making the nutrients more readily available to the plants in forms they can absorb. Plant growth promoting microorganisms produce organic acids and amino acids, which dissolve and make available (chelate) mineral nutrients. Spectrum assists and speeds nature in decomposition and recycling of organic matter into an important substance known as humus, building richer, healthier soil.

Spectrum is approved for use on certified organic crops and is listed by OMRI (Organic Materials Review Institute), the California Dept of Food & Agriculture Organic program and the Washington State Organic program.

Read the Spectrum product label


Material Safety sheet.


OMR listed

OMR, CDFA and WSDA listed.

Product Image Item Name- Price
Spectrum 5 acre container
5 acre container contains 250 grams. OMR, CDFA and WSDA listed.

Spectrum 25 acre container
25 acre container contains 1250 grams. OMR, CDFA and WSDA listed.

Spectrum 100 acre bucket
100 acre bucket contains 5000 grams. Spectrum_MED.pngSpectrum_MED.png

Spectrum 10 acre container
10 acre container contains 500 grams. OMR, CDFA and WSDA listed.

Spectrum 1 acre container
1 acre container contains 50 grams. OMR, CDFA and WSDA listed.

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