论文部分内容阅读
咸酸田主要分布在我国南方江河下游近出海口的平原地带,过去盛长红树林,由于河流冲积物逐年增厚,其残体被埋藏于土中,经过长期的分解转化,土壤表层积聚大量的硫酸盐呈强酸性反应,耐咸的田葱,莞草都不能生长。这种土壤不仅反应过酸,土中也缺乏磷素,因此我们进行了磷矿粉改良咸酸田试验。效果很好。现简约汇报于后。
The salicylic acid fields are mainly distributed in the plains of the lower reaches of the Yangtze River in the south of our country. In the past, the mangrove forests grew thickly. As the river alluvium gradually thickened, the remains were buried in the soil. After long-term decomposition and conversion, a large amount of sulfuric acid accumulated on the surface of the soil Salt was strong acid reaction, salty onion, Guan grass can not grow. This soil not only reacts too much with acid but also with a lack of phosphorus in the soil, so we conducted a modified field test of phosphate rock. good results. Report is simple report later.