Open Access
Table 1
Summary of collected data through references and field experiments.
| Type | No. of data | Source |
|---|---|---|
| VSF | 441 | Rajaratnam et al. (1986, 1992), FAO/DVWK (2002), Puertas et al. (2004) and 4 field cases, 2 included in Fuentes-Pérez et al. (2014) |
| PWF | 180 | 3 field cases, 1 included in Fuentes-Pérez et al. (2016) |
| SPNF | 45 | 1 field case |
A description of own field cases can be found in S2 Appendix and all data collected in field cases is included in S3 Data Appendix.
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