closeup, man spreading barkdust or mulch over a young blueberry plant

acidity background barkdust blueberries blueberry corymbosum cultivated cultivating digging dirt earth ecology farm farmer farming fertilizer food garden gardener green ground grow growing growth halfhighbush hand hobby human humus male mulch mulching nature organic outdoor person ph plant plantation planting regulation rural self selfsufficient selfsustainability soil spring springtime supporter sustainability tree vaccinium vegetable white work working