★★★★★ 5
Five Stars
Format: Paperback
great
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Reviewed in the United States on September 18, 2016
HY PRO PH- 5LPH For a balanced nutrition and potting soil, two things are essential, namely EC and pH values. Plants prefer high quality water in order to flourish. For good quality water, the amount of calcium plays an important part. Water with a relatively high amount of calcium and magnesium ions, we call ? hard water?. Hard water can harm plants that prefer an acid environment. Consuming water EC values are the values for the electric conductance of water. If
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Product Reviews
★★★★★ 5
go o o o o
Format: Paperback
go o o o o d
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Reviewed in the United States on October 21, 2014
★★★★★ 1
One Star
Format: Paperback
Exactly the same as the free PDF I downloaded online for my student, only this costs $26 plus tax.
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Reviewed in the United States on April 3, 2017
★★★★★ 5
Excellent customer service
Format: Paperback
Totally recommendable.
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Reviewed in the United States on August 26, 2019
★★★★★ 5
Five Stars
Format: Paperback
This helped a lot for us to prepare for the SLATE exam.
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Reviewed in the United States on August 23, 2016
