我区高温多湿,雨量比较集中,水土流失严重,土壤中有机质分解快,含量少,这是茶叶亩产不高的重要原因。据分析,在坡地红壤中,有机质含量仅2～3％,氮只有0.1～0.3％,钾、磷都很少。而茶叶是多年生的叶用作物,一年之中四季采茶,有些茶树可采几十年或上百年,因而茶园的养分消耗很大,如不经常给予补充,是不会高产的。采一百斤鲜茶叶,要从土壤中吸收氮素 High temperature and humidity in my area, rainfall is more concentrated, serious soil erosion, soil decomposition of organic matter faster, less content, which is less important tea yield per mu. According to analysis, red soil in the slope, organic matter content of only 2 to 3%, nitrogen is only 0.1 to 0.3%, potassium, phosphorus are few. Tea is perennial leaves of crops, picking tea in four seasons throughout the year, and some tea trees can take decades or hundreds of years, so the nutrient consumption of the tea garden is very large, if not often give supplement, will not be high yield. Pick up a hundred pounds of fresh tea, to absorb nitrogen from the soil