答者:河南农业大学胡青霞问:冬季清园应注意什么?答:(1)落叶归根。在树叶基本落完后,清除杂草,深埋入树冠投影外60厘米处,先入落叶杂草,再填表土,最后填底土,踏实再浇水,或与施有机肥结合进行。还可以把清扫的枯枝落叶集中烧毁,并将树干周围的 A: Hu Qingxia, Henan Agricultural University Q: What should be paid attention to in the winter clearing garden? A: (1) Deciduous roots. After the leaves are basically finished, the weeds are cleared and embedded in the canopy at a depth of 60 cm. The weeds are first weeded in the deciduous weeds and the topsoils are filled in. Finally, the soil is filled, and then watering is carried out again or in combination with organic fertilizer. You can also focus the sweeping litter and burn it around the trunk