论文部分内容阅读
以往采用pH4.0、1N醋酸缓冲溶液浸提法来评价水稻土中可给态硅的含量。这种方法所得结果往往偏高,而且与水稻的含硅量没有相关性。作者认为这是该法溶提能力过强所引起的,从而提出与水稻根际条件相近
In the past, pH4.0 and 1N acetic acid buffer solution were used to evaluate the available silicon content in paddy soil. The results obtained by this method tend to be high and have no correlation with the silicon content in rice. The authors believe that this is caused by too strong capacity of the method to dissolve, so as to put the rice rhizosphere similar conditions