spad

n.

矿山井下测量用钉；

Calibration of the Minolta SPAD
Calibration of the Minolta SPAD-502 leaf chlorophyll meter
利用叶绿素计(SPAD-502)诊断水稻氮素营养和推荐追肥的研究进展
INTER-RELATIONSHIPS OF APPLIED NITROGEN, SPAD, AND YIELD OF LEAFY AND NON-LEAFY MAIZE GENOTYPES
Effect of Irradiance on Chlorophyll Estimation with the Minolta SPAD-502 Leaf Chlorophyll Meter
Photosynthetic pigments, nitrogen, chlorophyll a fluorescence and SPAD-502 readings in coffee leaves
Evaluating the relationship between leaf chlorophyll concentration and SPAD-502 chlorophyll meter readings
Nondestructive and rapid estimation of hardwood foliar nitrogen status using the SPAD-502 chlorophyll meter
New method to assess barley nitrogen nutrition status based on image colour analysis : Comparison with SPAD-502
Biochar amendment techniques for upland rice production in Northern Laos : 1. Soil physical properties, leaf SPAD and grain yield