圆铃大枣根外追肥技术

Root Dressing Technology for Yuanling Chinese Jujube

圆铃大枣生长发育中,不同时期所需肥料的种类和数量有所不同,仅靠根部追肥不能满足枣树生长需要,尤其花期开花量大、消耗大量贮藏养分,中后期大量果实生长需肥量急剧增加,因此后期根外追肥是一个重要的措施。文章综述了圆铃大枣的根外追肥技术,包括选择合适的根外追肥种类、浓度、时期,结合气候条件,确定最佳喷施部位,注意防止产生肥害等方面。

During the growth and development of jujube, the kinds and quantities of fertilizers needed at different stages are different. Applying fertilizer only at the root can not meet the needs of jujube trees, especially at flowering stage, which consumes a large amount of nutrients for storage, and a large number of fruits in the middle and late stages of the growth and fertilizer requirements increase sharply. Therefore, applying fertilizer outside the root becomes an effective and very important measure. In this paper, the techniques of topdressing for jujube with round boll were summarized, including selecting suitable kinds and concentration of topdressing, selecting suitable topdressing period, paying attention to climate conditions, determining the best spraying position and preventing fertilizer damage.