Fixing Carrot and Parsnip Root Development with Phosphorus and Potassium

Why Root Crops Grow Long but Not Thick

Lush tops but skinny roots indicate nitrogen excess and phosphorus/potassium deficiency.

Soil Amendment Plan

• Add bone meal or rock phosphate (2.5 lbs/100 sq ft) for phosphorus.
• Add greensand (2.5 lbs/100 sq ft) for potassium.
• Continue aged manure for organic matter.
• Reduce kitchen waste (high nitrogen).

Annual Maintenance

Replenish P and K yearly. Wood ash adds some phosphorus. Balanced fertility = thick, harvestable roots.