US$ 13.00
PPF (light output): 1090 umol/s
Temperature is easily viewed through the back-lit digital display
That low-volt control can take many forms and communication protocols
Mini-BlocksTM and Gro-BlocksTM have finally found a home
L-amino acids
Down To Earth Granular Humic Acid Athena Bloom A PPF (light output): 1090 umol/sA highly concentrated source of humic acids ideal for use on fields, turf and vegetable gardens. Derived from the ancient remains of decomposed organic plant materials, humic acids enhance nutrient uptake and stimulate soil microbial life. Naturally occurring, unaltered oxidized lignite containing 70% total humic acids, crushed, screened and graded to a particle size of 1 3 mm.