57		crop_code
new		crop_name_1
SY_corn		crop_name_2
12973.000000	total_biomass_C
0.370000	portion_of_grain
0.380000	portion_of_shoot
0.250000	portion_of_root
44.503700	plant_CN
29.700001	grain_CN_ratio
70.000000	root_CN_ratio
59.000000	shoot_CN_ratio
150.000000	water_requirement
3.000000	max_LAI
2.000000	max_height
2200.000000	TDD
1.000000	N_fixation

0.400000 initial efficiency of use of absorbed light (kg CO2/ha/h)/(J/m2/s)
40.000000 maximum rate of leaf photosytensis, kg CO2/ha/h
0.015000 rate constant of crop development in vegetative stage (1/d)
0.020000 rate constant of crop development in reproductive phase 1/d
0.700000 economic copmponent/storage organc by weight
450.000000 specific leaf weight constant, kg dm/ha
2775.000000 specific stem weight, kg dm/ha
0.500000 ratio of internal/external CO2 concentrations
1.000000 maximum root depth for crop, m
0.060000 increase rate of root depth, m/day
