Misuratore di clorofilla con precisione ± 1,0 unità SPAD area di misura 2 mm * 3 mm
4．Repeatability: within ±0.3 SPAD unit (SPAD is between 0-50). Chlorophyll plays a crucial role in the photosynthesis of plants. Its content is an important indicator of plant nutrition stress, photosynthetic capacity, and growth conditions.