Studies on growth diagnosis of crops by optical measuring method
1998
Yamamoto, H. (Kyushu National Agricultural Experiment Station, Nishigoshi, Kumamoto (Japan))
Non-touch and non-destructive measuring method for estimating the leaf area index, the top dry weight, the leaf water content, the panicle water content, the percentage of damaged leaf area and disease severity of rice blast disease in crop canopies was applied using a portable spectroradiometer, two spectroradiometers and and infrared radiative thermometer under natural and laboratory conditions
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