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对山东寿光南部4个乡镇19个自然村大棚耕层土壤养分及金属元素含量进行了调查,以期为大棚土壤科学施肥提供依据。结果表明:耕层土壤养分总体含量很丰富,土壤平均pH6.25,平均C/N为13.96,全氮平均含量为3.12g·kg~(-1),有机质含量很丰富,平均值为41.25g·kg~(-1),有效磷、速效钾含量很丰富,平均值分别为1 492.1、776.6mg·kg~(-1);土壤中金属元素有效钙、镁、铁、锌、铜、锰含量均极为丰富,平均值分别为6 007、1 053、178.29、91.77、11.35、221.8mg·kg~(-1)。因此,在实践中应当控制并减少施肥量,确保环境安全。
Soil nutrients and metal elements contents in the greenhouse were studied in 19 villages in 4 townships of southern Shouguang in Shandong Province in order to provide basis for scientific fertilization in greenhouse soil. The results showed that: the overall content of topsoil was rich in soil, the average soil pH was 6.25, the average C / N was 13.96, the average content of total nitrogen was 3.12g · kg -1, the content of organic matter was very rich, with an average value of 41.25g · Kg ~ (-1), available phosphorus, available potassium content is very rich, with average values of 1 492.1 and 776.6 mg · kg -1, respectively. The contents of available Ca, Mg, Fe, Zn, Cu and Mn Content are extremely rich, the average values were 6 007,1 053,178.29,91.77,11.35,221.8mg · kg -1. Therefore, in practice, we should control and reduce the amount of fertilizer to ensure environmental safety.