保墒是保苗的关键,整地是保墒的有效措施。早春季节抓住“三浆期”,及时进行压地、耙地和顶浆打垄,可以减少土壤水分蒸发,保住墒情,为适期播种打下良好基础。 1.顶浆期耙压。从“雨水”到“惊蛰”,温度逐渐升高,地表开始化冻,浆在上面。进行耙压保墒,压碎坷垃,以疏松土壤,平整地面,减少水分蒸发。 2.反浆期打垄。从“惊蛰” Preservation of soil moisture is the key to seedlings, soil preparation is an effective measure of soil moisture. Early spring seize the “three pulp period”, in a timely manner to pressure, harrow and apron Duowu, can reduce soil water evaporation, moisture retention, lay a good foundation for the appropriate sowing. 1. Serum priming pressure. From “Rain” to “Jingzhe”, the temperature gradually increased, the surface began to freeze, pulp in the above. To rake pressure soil moisture, crushing Ke rub, to loosen the soil, leveling the ground, reducing evaporation. 2. Anti-pulp fight ridge. From “Jingzhe”