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对在斑纹简育湿润淋溶土(潮棕壤)上发育的温室菜园土的磷素含量、磷素的有机和无机组分、磷素的吸附和解吸特征进行了研究,结果表明:日光温室土壤具有明显的磷素积累特征,使用年限在3年~36年日光温室土壤的全磷、速效磷、Cowell全磷和Cowell无机磷含量分别比与其相邻的露地旱田土壤的增加了90.4%~182.4%、505.0%~892.1%、294.5%~478.9%和360.9%~637.6%。其中速效磷含量已达到84.7~138.9mg/kg。日光温室土壤无机磷和有机磷都显著增加,在各组分之间的比例上表现为O-P增加,Ca-P下降,高稳性有机磷相对增加,而活性有机磷所占比例下降。日光温室土壤不仅表现为对磷素的吸附能力增强,而且解吸能力也明显提高。
The contents of phosphorus, organic and inorganic components of phosphorus, and the adsorption and desorption characteristics of phosphorus in greenhouse garden soil grown on zebra soil were analyzed. The results showed that the solar greenhouse The soil had obvious characteristics of phosphorus accumulation. The content of total phosphorus, available phosphorus, Cowell total phosphorus and Cowell inorganic phosphorus in the soils of sunlight greenhouse increased by 90.4% ~ 182.4%, 505.0% ~ 892.1%, 294.5% ~ 478.9% and 360.9% ~ 637.6% respectively. The available phosphorus content has reached 84.7 ~ 138.9mg / kg. The contents of inorganic phosphorus and organic phosphorus in soils increased significantly in the solar greenhouse, and the proportion of the components increased with the increase of O-P, Ca-P, high-stable organic phosphorus and active organic phosphorus. Sunlight greenhouse soil not only showed an enhanced ability to adsorb phosphorus, but also a significant increase in desorption capacity.