Table 1.
P treatments for the hydroponic culture and field trials.
| Experimental design | Treatmentsa | |||||
|---|---|---|---|---|---|---|
| Years | Trials | Namesa | Codes | Times | P concentrations (H)/Replenishment (F) | |
| Hydroponic culture trial (H) | 2013 | 1 | NP | NP1 | 1 × P | 0.2 mM |
| LP | LP1 | 1/10 × P | 0.02 mM | |||
| 2014 | 2 | NP | NP2 | 1 × P | 0.2 mM | |
| LP | LP2 | 1/10 × P | 0.02 mM | |||
| Field trial (F) | 2012–2013 | 3 | NP | NP3 | 92 kg ha−1 | |
| LP | LP3 | Soil available P | 0 | |||
| 2013–2014 | 4 | NP | NP4 | 102 kg ha−1 | ||
| LP | LP4 | Soil available P | 0 | |||
a
LP, low phosphorus; NP, normal phosphorus; NP1,NP2, NP3, and NP4, normal phosphorus treatment in trial 1, trial 2, trial 3 and trial 4 respectively; LP1, LP2, LP3, and LP4, low phosphorus treatment in trial 1, trial 2, trial 3, and trial 4 respectively.