Evaluation of soil nutrient status of tea garden in southern Henan Province

For making soil nutrient status of tea garden in south Henan clear and guiding scientific fertilization of tea garden in the hope of providing the basis for high-quality and high-yield production of tea. The study of tea garden in south Henan were analyzed by multi-sample which were the focus of 45 villages and towns of 9 main tea producing counties (districts) in south Henan. The results showed that the tea garden soil pH were partial acidification and the organic matter content were low, only 16.73% of tea garden in south Henan accorded with the requirement of high-quality and high-yield production of tea garden. The supply ability of the total N was better, and the effective N content was relatively abundant. There were 85.66% and 87.25% of tea garden soil to meet the requirements of highquality and high-yield production of tea garden; The effective P content of 61.35% of tea garden soil were very low; Most of the tea garden soil were seriously deficient in available K. In the middle elements, the available Ca contents were abundant, and the Mg and S contents were low, 50.63% and 68.52% of tea garden were lower than the critical value. In the trace element, the available Fe and Mn were in abundant supply, Zn content were medium, there was a great difference among different tea garden, and the lack of Cu and B were serious. Therefore, the tea garden in south Henan should increase P, K fertilizer on the basis of applying organic fertilizer, and pay attention to supplementing S, Mg, Cu and B fertilizer. Some tea garden should also supplement Zn fertilizer.