经试验,“深种浅覆土”比平播亩产增加22％。具体作法:将播种深度由9厘米加深到18厘米,但覆土仍为9厘米厚,余土堆在播种穴旁,这样就形成了一个个“小盆坑”。当苗高10—15厘米时,把堆在播种穴旁的土填回穴内,使地面恢复平整。其它栽培管理措施与平播一样。马铃薯“深种浅覆土”增产原因:一、马铃薯深种浅覆土,地温高,芽粗,苗壮,出苗早。因为 After testing, “shallow shallow overburden” increased by 22% over flat broadcast mu. The specific approach: the sowing depth deepened from 9 cm to 18 cm, but the soil is still 9 cm thick, Yu Mudao sowing in the hole, thus forming a “small basin pit.” When the seedling height 10-15 cm, the pile of soil in the sowing hole next to fill the hole, so that the ground to restore formation. Other cultivation management measures are the same as those for broadcasting. Potato “shallow shallow overburden” Yield reasons: First, the shallow potato shallow casing, high temperature, bud thick, strong, early emergence. because