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Callahan's study of hedgerows
The No-Till Grower's Guide to Ecological Market Gardening
He authored and co-authored many books on organic gardening
founder of Advancing Eco Agriculture
which is detailed here
A Growers Guide for Balancing Media-Based Soils: A Practical Guide to Interpreting Tests of Modified Growing Media RFSI bookstore Callahan's study of hedgerowsSoil balancingthe practice of ensuring proper ratios of soil macro and micronutrientsis a time tested and efficient method for maintaining healthy soil and growing productive crops. But if youre growing in media in containersor even in field soil that has been amended so heavily that the organic matter content is now higher than 12 percentnormal soil balancing equations dont work properly. Thats because soil test results are reported based on a
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