利用平顶房房顶培育柑桔苗现在农村修建的平顶房越来越多。利用空闲的房顶培育柑桔苗，既缓解了耕地少的矛盾，夏季又可降低室内温度，如果房顶漏水，也可同时予以解决。其具体做法是：先用粘土填压房顶可能漏水的缝隙，然后挑壤土覆盖２０ｃｍ厚，土壤四周要用砖砌墙围好... Cultivation of citrus seedlings using roof flat roof Now more and more flat roofs built in rural areas. The use of free roof cultivating citrus seedlings not only alleviate the contradiction of arable land less, in summer can reduce the indoor temperature, if the roof leaking, can also be solved at the same time. The specific approach is: first filled with clay may leak roof cracks, and then pick the loam cover 20cm thick, around the soil with brick walls around ...