Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Economic indices of tomato production in open-air field and rain-shelter field in YF_
| Cost and return components | YF | |
|---|---|---|
| Open-air cultivation | Rain-shelter cultivation | |
| Fruit yield (kg · 0.0667 ha−1) | 661.20 | 7603.53 |
| Sale price (CNY · kg−1) | 2 | 2 |
| Total value of production (CNY · 0.0667 ha−1) | 1322.40 | 15207.06 |
| Variable cost of production (CNY · 0.0667 ha−1) | ||
| (1) Fertilisers | 5300.00 | 5300.00 |
| (2) Pesticides | 500.00 | 200.00 |
| (3) Labour for harvest and maintenance shelter | 0.00 | 1200.00 |
| Total | 5800.00 | 6700.00 |
| Fixed cost of production (CNY · 0.0667 ha−1) | ||
| (1) Rain-shelter | 0.00 | 600.00 |
| (2) Stands | 0.00 | 200.00 |
| Total | 0.00 | 800.00 |
| Total cost of production (CNY · 0.0667 ha−1) | 5800.00 | 7500.00 |
| Gross return (CNY · 0.0667 ha−1) | –4477.60 | 8507.06 |
| Net return (CNY · 0.0667 ha−1) | –4477.60 | 7707.06 |
| Benefit to cost ratio | 0.23 | 2.03 |
| Productivity(kg · CNY−1) | 0.11 | 1.01 |
Two locations in Southern China_
| Group | Location | Cultivation | Coordinate |
|---|---|---|---|
| 1 | YF | Open-air | 24°94′41.8″N, 109°65′91.2″E |
| 2 | YF | Rain-shelter | 24°91′68.2″N, 109°78′28.0″E |
| 3 | WM | Open-air | 23°15′39.5″N, 108°26′07.9″E |