USA

Corn at harvest with neither compost nor biochar

corn at 3 wks with biochar and compost

Corn at 3 wks with neither biochar nor compost

Corn at 6 wks with biochar and compost

Corn at 6 wks with compost

Corn at 6 wks with neither

Cucumbers at 4 wks. with biochar

beans at 5 weeks without biochar

Corn at harvest with biochar and compost

Beans at 1 week without biochar

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