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与N素肥料一样,P、K肥料也是茶树营养的主要元素.尽管在田间试验中已经知道,施用P、K肥料的效果远不及施用N肥料的效果,但是如果茶园土壤一旦缺P、K,也会造成减产,因此,茶园P、K肥料也一直为有关研究人员所关注.一、有关磷素的研究1、茶树对磷的吸收与含量分布日本石垣幸三用P~(32)培养液和涂抹等方法研究了茶树根系和叶面对磷的吸收状况,结果表明,由茶树根系所吸收的P~(32)起初大部分都积累在根中,以后徐徐地向上部输送,培养液中P~(32)的含量越高.根系吸收的时间越长,p~(32)被输送到各器官的数量也越多.用P~(32)涂抹茶树叶片,表明了叶片对P~(32)的吸收量以涂抹在叶子背面的多.
Like N fertilizer, P and K fertilizer are also the main elements of tea tree nutrition.Although it is known in the field experiment that the effect of applying P and K fertilizer is far less than that of N fertilizer application, if there is no P, K, Will also result in reduced production, therefore, tea plantations P, K fertilizer has also been concerned about the researchers.One, the study of phosphorus 1, the absorption and content of phosphorus in tea plant Japan Ishigaki three with P ~ (32) The results showed that most of the P 32 absorbed by roots of tea plants accumulated in roots at first and then gradually transported to the upper part. The P The higher the content of ~ (32), the longer the root absorption time, the more the amount of p ~ (32) was transported to various organs.The application of P ~ (32) ) Of the amount of absorption to the back of the leaf more.