Method for establishing rice blade NDVI fitting model for representing rice growing states
A technology for fitting models and growth states, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to accurately estimate the growth state of rice
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[0089] The following provides a method for constructing a rice leaf NDVI fitting model that characterizes the growth state of rice with the test area being the Northeast region and the test material being Shendao 47 varieties. Specifically, it is implemented in accordance with the following steps:
[0090] Step 1, select several sampling points inside the paddy field, each sampling point is a 0.5m area 2 the circular area of
[0091] Step 2, at the tillering stage, jointing booting stage, heading filling stage and maturity stage, obtain the respective maximum temperature, minimum temperature, maximum relative humidity and minimum relative humidity of the rice bottom, rice middle, rice canopy and rice growth environment every day;
[0092] Step 3, at the tillering stage, jointing booting stage, heading filling stage and maturity stage, obtain rice leaf NDVI every day;
[0093] Step 4, at the tillering stage, jointing booting stage, heading filling stage and maturity stage, obt...
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