江苏高淳县砖墙镇针对去年农户螃蟹养殖“小面积、大丰收”的特点,今年大力倡导广大农户“挖小塘、养大蟹”。 据了解,去年,该镇通过调查,发现规模在10亩左右的螃蟹养殖具有很多优点:一是投入少,有利于农户规避风险。目前螃蟹养殖每亩平均投入成本约在1000元左右。如果稻田养蟹10亩,年总投入需10000元,这对于现 Brick town of Gaochun County, Jiangsu Province for the last year crab farming farmers “small size, bumper harvest,” this year, vigorously promote the majority of farmers “dig small ponds, raise crabs.” It is understood that last year, the town through the survey found that the scale of about 10 acres of crab farming has many advantages: First, less investment, is conducive to farmers to avoid risks. The average cost of crab farming per acre input is about 1,000 yuan. If the paddy crabs 10 acres, the total investment required 10,000 yuan, which for the present