1　翻耕培土　在冬春夜冻未消之前 ,对桔园翻耕培土 ,既可保护根系不受冻害 ,又可杀灭土壤中越冬的花蕾蛆、象甲、大实蝇等害虫的幼虫和蛹。翻耕后若墒情不良 ,应及时灌水 ,使表土下沉。翻耕培土宜在11月中下旬结束。培土宜用干细泥土、草皮泥或火土灰 ,最好每株先施厩肥 50～ 1 tillage soil in the winter, spring and night before freezing, tillage and soil cultivation of orange orchard, both to protect the root system from frost damage, but also to kill overwintering soil in the soil bud maggots, such as A, fruit fly and other pests larvae and pupa. If the soil moisture plowing poor, should be timely irrigation, topsoil sinking. Tillage soil should end in late November. Soil should be fine with soil, turf mud or fire ash, the best first per unit manure 50 ~