Hello. I already have some dogwood edible plants and i am planning to plant some more. I did a soil test of my field and the results are: Soil type: Sand 57% - Clay 23% - Sludge 20% [0-30 cm] Depth PH: 6.7 CaCo3 % (Bernard): Traces Organic Material: 1.9% P: 7 mg/kg K: 87 mg/kg [30-60 cm] Depth PH: 6.3 CaCo3 % (Bernard): Traces Organic Material: - P: 4 mg/kg K: 67 mg/kg Can you suggest me on what improvements should i move on ? A friend told me that K should be a least 100 mg/kg. Is there a standard i should follow ? For example: P should be between 5 - 10 mg/kg K should be between 80 - 110 mg /kg Thank you.