Table 1.

Initial estimates (means ± standard deviation) of the parameters of Kosugi’s retention model obtained by curve fitting to data pairs of water content and pressure head using RETC

Treatment	Depth cm	θs cm3 cm−3	hm cm	σ −	R2
Initial drainage experiment (unplanted columns)
Unplanted ↳ No plant*	0–30	0.38 (<0.01)	284.7 (±18.2)	2.15 (±0.11)	0.99 (<0.01)
	30–60	0.39 (<0.01)	388.8 (±35.3)	1.99 (±0.11)	0.97 (<0.01)
Unplanted ↳ Mustard	0–30	0.39 (<0.01)	272.8 (±22.5)	2.22 (±0.14)	0.97 (±0.01)
	30–60	0.40 (<0.01)	302.0 (±24.9)	1.89 (±0.10)	0.95 (±0.01)
Unplanted ↳ Rye	0–30	0.37 (±0.01)	308.2 (±25.3)	2.22 (±0.07)	0.98 (<0.01)
	30–60	0.39 (±0.01)	352.3 (±37.3)	2.06 (±0.08)	0.96 (±0.01)
Final drainage experiment (unplanted vs. planted columns)
No plant	0–30	0.38 (<0.01)	466.3 (±48.1)	2.44 (±0.16)	0.96 (±0.01)
	30–60	0.38 (<0.01)	491.5 (±35.4)	2.26 (±0.17)	0.98 (<0.01)
Mustard	0–30	0.39 (<0.01)	356.6 (±60.6)	2.49 (±0.16)	0.94 (±0.04)
	30–60	0.38 (<0.01)	265.2 (±20.6)	1.87 (±0.10)	0.98 (<0.01)
Rye	0–30	0.39 (±0.01)	540.0 (±63.3)	2.82 (±0.12)	0.94 (±0.01)
	30–60	0.38 (±0.01)	488.6 (±82.4)	2.51 (±0.30)	0.99 (<0.01)

*For the pre-planting initial drainage experiment ↳ indicates the subsequent treatment