论文部分内容阅读
研究了蔗园土壤养分的垂直分布特征。结果表明:(1)不管是在旱地蔗园还是在水田蔗园,0～30cm土层的有机质、水解氮、速效磷、速效钾等主要养分含量明显高于30～60cm的土层,但全氮、全磷、全钾在0～30cm土层与30～60cm土层之间没有明显的变化。(2)旱地蔗园的有效铁、有效锰和有效铜0～30cm土层比30～60cm土层高,有效锌含量在0～30cm的土层与30～60cm的土层之间变化不大。
The vertical distribution of soil nutrients in sugarcane field was studied. The results showed that: (1) The main nutrient contents of organic matter, hydrolyzed nitrogen, available phosphorus and available potassium in 0 ~ 30cm soil layer were significantly higher than those in 30 ~ 60cm soil layer in either dryland or sugarcane field, There was no obvious change of nitrogen, total phosphorus and total potassium between 0 ~ 30cm soil layer and 30 ~ 60cm soil layer. (2) The available iron, available manganese and effective copper in 0 ~ 30cm soil layer in dryland sugarcane field are higher than that in 30 ~ 60cm soil layer. There is little change between 0 ~ 30cm effective soil layer and 30 ~ 60cm soil layer .