专用肥学名为复混肥,它是根据各作物对氮、磷、钾及各种微量元素的需求进行配比加工而成。市面上多为玉米专用肥,可通用于水稻、大豆等作物,对马铃薯应该慎用。目前,各类专用肥已逐渐为广大的农民认可。我区地处长春市的东南部,属于半山区丘陵地带,耕地土质较差。今年我区有针对性地引进了一些专用肥。从总体上看,专用肥有着广阔的前景,它主要有 Special fertilizer known as the compound fertilizer, which is based on the crops of nitrogen, phosphorus, potassium and trace elements in the needs of the ratio of processed. The market is mostly corn fertilizer, can be common in rice, soybeans and other crops, the potato should be used with caution. At present, all kinds of special fertilizer has gradually accepted the majority of farmers. My district is located in the southeast of Changchun City, belonging to Mid-Levels hilly areas, arable land quality is poor. This year my area targeted to introduce some special fertilizer. Overall, special fertilizer has a broad prospect, it is mainly