Table 1.
Details of recommended deficit irrigation and compared irrigation methods on field crops in China
| Plants | Study no. | Details of recommended deficit irrigation and compared irrigation methods | Location and time | Reference |
|---|---|---|---|---|
| Maize | 1 | Alternate partial root-zone furrow irrigation compared with conventional furrow irrigation | Minqin, Gansu, 1999–2000 | Kang et al. (2009) |
| 2 | Controlled soil water at 40–50% θ f at the seedling stage plus a further mild soil drying (55–65% θ f) at the stem-elongation stage, compared with 60–80 and 65–85% θ f, respectively | Changwu, Shaanxi, 1996–1997 | Kang et al. (2000a ) | |
| 3 | Controlled soil water at 60% θ f compared with 65% θ f at the seedling to stem-elongation stage | Xinxiang, Henan, 2007 | Du et al. (2010b) | |
| Wheat | 4 | Irrigation controlled at the lower limit of soil water content at 60%, and 45% θ f at seedling, 45% θ f at grain-filling stage, and 75% θ f at other stages, compared with 75% θ f at all stages | Changwu, Shaanxi, 1995–1998 | Kang et al. (2002a ) |
| 5 | Irrigation water amount of 60mm compared with 75mm at seedling to tillering stages | Wuwei, Gansu, 2004 | Kang et al. (2009) | |
| 6 | Irrigation controlled at the lower limit of soil water content as 80, 70, and 70% θ f, compared with 90, 85, and 85% θ f at sowing, seedling and jointing stages | Yanzou, Shandong, 2007–2008 | Han et al. (2009) | |
| 7 | Controlled soil water at 50–55% θ f compared with 65% θ f at the planting to seedling stage with three varieties | Xinxiang, Henan, 2006–2007 | Du et al. (2010b) | |
| 8 | Controlled irrigation times as four with the irrigation water amount of 30mm per time, compared with irrigation times as two with the irrigation water amount of 60mm per time at stem-elongation and heading stages | Luancheng, Hebei, 2003–2007 | Du et al. (2010b) | |
| Sorghum | 9 | Alternate partial root-zone furrow irrigation at jointing and heading stages with irrigation water amount of 37.5mm compared with traditional block irrigation of 67.5mm for each irrigation | Xiuwen, Shanxi, 2011 | Cao et al. (2011) |
| Potato | 10 | Alternate partial root-zone furrow irrigation only using half the irrigation water amount compared with traditional furrow irrigation with three varieties | Huhehot, Inner Mongolia and Qinwangchuan, Gansu, 2009–2010 | Xie et al. (2012) |
| 11 | APRI only using 70% irrigation water amount compared with traditional subsurface drip irrigation | Xinxiang, Henan, 2008 | Huang et al. (2010) | |
| Bean | 12 | Mild deficit (60–65% θ f) at seedling and jointing stages compared with full irrigation (70–75% θ f) at all stages | Qinwangchuan, Gansu, 2006 | Ding et al. (2007) |
| 13 | Alternate partial root-zone furrow irrigation compared with conventional furrow irrigation with same upper and lower limit of soil water content | Shenyang, Liaoning, 2010 | Xu et al. (2011) | |
| 14 | Alternate partial root-zone furrow irrigation compared with conventional furrow irrigation; the irrigation water amount after planting is three-quarters of the control treatment | Changchun, Jilin, 2009–2010 | Zhang et al. (2011) | |
| Peanut | 15 | Two-thirds of the water was applied using alternate partial root- zone furrow irrigation compared with conventional furrow irrigation with the same upper and lower limits of soil water content | Shenyang, Liaoning, 2011 | Xia et al. (2013) |
θ f, field capacity.