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红萍是富钾能力很高的绿肥作物,但作为柑桔基肥研究者不多。1984年湖南省新宁县土肥站,在同样栽培管理基础上,每株柑桔施用细录萍(鲜萍)40斤,平均每株结果110斤,比株施猪牛粪40斤的增产11.2斤,比不增施肥料的,增产17斤,柑桔果实含糖量也比施猪牛粪的提高0.87％,比不增施肥料的提高1.2％。从资料微机检索来看,国内采用示踪法研究红萍钾在柑桔的吸收和体内运转的情况,至今尚未见有公开发表的文章。作者拟定通过示踪法,探索在红萍两次高峰期(4～5月、9～11月),作为柑桔生产用肥,探索柑桔对红萍钾的吸收和运转分配情况,以及对柑桔产量和品质的影响,以求用红萍来顶替部分柑桔肥料,达到既节省肥
Hongping is a green manure rich in potassium, but not many as a citrus base fertilizer. In 1984, Xinnian County, Hunan Province, soil fertilizer station, the same cultivation and management based on the application of each record fine Ping Ping (fresh Ping) 40 pounds, the average yield of 110 pounds per plant than pigs dung 40 kg yield of 11.2 kg , No fertilizer than the increase of 17 pounds, the citrus fruit sugar content than the pig manure increased 0.87%, 1.2% higher than without fertilizer. From the data computer retrieval point of view, the domestic use of tracer method Hongping potassium absorption in the citrus and the operation of the body, so far have not seen a published article. The authors plan to explore the use of tracing method to explore the red peak two peak (April to May, September to November), as fertilizer production of citrus to explore citrus red Hongping potassium absorption and distribution of operations, and Citrus production and quality, in order to use Hongping to replace part of citrus fertilizer, to achieve both fertilizer