改进耕耙砂田方法提高秧田保水能力德阳市中区柏隆镇青吉村是全中区最典型的缺水村．１３００多亩水稻全凭抽水打四和灌溉、而且全村８０％的田土属紫色冲积砂土．保水能力差。过去用牛犁田打水．一般都要犁四遍犁头．而且每犁一遍都要仔细耙绒，才坐得稳水。使用大拖拉机... Improve rake harrow method to improve seedling water retention capacity Deyang City, Central Plains Green Village is the most typical of the whole area of ​​the village. 1,300 mu of paddy rice are all irrigated by pumping and irrigation, and 80% of the village is a purple alluvial soil. Poor water retention capacity. In the past, we fished with ox plowing fields. Plow the plowshares generally four times. And each plow must be carefully rake velvet, sit tight. Use big tractor ...