Wheat Pete's Word, Feb 18: Shifts in soil biology, dicamba stewardship, and manganese mysteries
Briefly

Wheat Pete's Word, Feb 18: Shifts in soil biology, dicamba stewardship, and manganese mysteries
"Biologicals reality check! Research shows field inconsistency versus controlled lab success with biologicals. It's tough out there Microbial paradigm shift: Focus shifts from single strains to whole soil community management Competition matters, especially with soil microbes Phosphorus solubilization rethink? Supporting soil biomass may outperform adding isolated organisms Soybean rhizobium lessons - Established strains outcompete newcomers, limiting performance improvements Nitrogen prediction rethink - Soil organic carbon may better predict N release than N tests"
"Dicamba update - EPA approves low-volatility formulation requiring drift and volatility reduction agents. What's the best for Canada? Stewardship reminder. Choose the proper nozzles, spray tools, and label compliance to protect dicamba's future Struvite phosphorus placement - Surface-applied product unlikely effective without root contact Cover crop interaction question - Root proximity required to solubilize Crystal Green granules Manganese on muck soils - Severe deficiencies corrected with foliar manganese sulphate applications"
EPA approved a low-volatility dicamba formulation that requires drift and volatility reduction agents; stewardship requires choosing proper nozzles, spray tools, and label compliance. Biological products often succeed in controlled lab settings but show inconsistent results in the field. Microbial management is shifting from single strains to whole-soil community approaches, with competition and soil biomass support becoming central. Phosphorus solubilization via applied products is uncertain; surface-applied struvite or Crystal Green granules require root proximity for effectiveness. Established soybean rhizobium strains commonly outcompete newcomers, limiting benefits of introduced strains. Soil organic carbon may better predict nitrogen release than conventional nitrogen tests. Severe manganese deficiencies on muck soils respond to foliar manganese sulphate applications.
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