VPD(μ¦κΈ°μ λΆμ‘±)λ 곡기 μ€μ μλΆ μκ³Ό μ£Όμ΄μ§ μ¨λμμ κ³΅κΈ°κ° λ³΄μ ν μ μλ μ΅λ μλΆ μμ μ°¨μ΄μ λλ€. ν΅μ λ μ¬λ°° νκ²½μμ VPDλ μλ¬Όμ μ¦μ° μλλ₯Ό κ²°μ νλ©° β μλΆ ν‘μ, 기곡 νλ, μ 체 μμ₯ μλμ μν₯μ λ―ΈμΉ©λλ€.
μ£Όμ μ¬μ€
- Measured in kilopascals (kPa); optimal range for most crops is 0.8β1.2 kPa
- Low VPD (high humidity): stomata close, transpiration slows, nutrient uptake drops
- High VPD (low humidity): excessive transpiration, wilting, tip burn risk
- VPD is determined by both temperature and relative humidity together
- Seedlings and clones prefer low VPD (0.4β0.8 kPa); mature plants prefer 1.0β1.5 kPa
- Controlling VPD requires coordinating temperature, humidity, and airflow together