巴西橡胶树生产中钾的重要性探析

钾作为植物细胞中含量最丰富的阳离子之一,对橡胶树具有重要的生理功能。近些年来,我国天然橡胶种植过程中,乙烯利刺激割胶造成植株体内钾的大量流失,同时,钾在肥料施用中的比例明显下降,其重要性常被忽视。基于钾的生理功能及其在农业生产中的战略地位,本文探析了钾在橡胶树生长发育、营养生理、胶乳产量及抗逆境胁迫等方面的影响,并简述了我国植胶区土壤钾素现状及培肥途径,同时也展望了橡胶树生产过程中与钾相关的研究方向。

Discussion of the important roles of potassium in natural rubber production

Potassium is the most important cation in plant cell,which plays to the critical physiology roles on natural rubber tree.In recent years,the exploitation of ethrel simulated tapping resulted in a tremendous loss of potassium nutrient during rubber tree production.Meanwhile,the rate of potassium to total applied fertilizer is significantly reduced,and the importance of potassium is always neglected.Therefore,based on the critical physiology roles and strategic position of potassium,this review discussed the effects of potassium on growth development,nutritional physiology,latex yield and plant anti stress,moreover,introduced the soil potassium condition and measures of forstering fertility in the areas of rubber plantation.Finally,this paper prospected the future research direction of potassium in rubber tree production.