Wei LuLu, Chen Shuo, Cui Jianyu, Ping Huaixiang, Yuan Chengpeng, Chen Qing
Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China.
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
J Environ Manage. 2022 Jul 1;313:115006. doi: 10.1016/j.jenvman.2022.115006. Epub 2022 Apr 7.
Manure amendments to agricultural soils is an excellent opportunity for sustainable utilization of agricultural waste while providing multiple benefits to improve soil quality and increase the availability of nutrients to plants, including phosphorus (P). In this study, a meta-analysis of published data from 411 independent observations based on 133 peer-reviewed papers was performed for an in depth understanding of various factors affecting the transformation of soil P pools with manure application. Manure application increased all soil inorganic P (P) by 58.0%-282% and organic P (P) by 65.0%-105%, while decreasing P/total P (TP), compared to those in unamended soils. Manure types, soil TP, and manure application rates were the important factors that influenced soil P fractions. Elevation of soil labile P was more pronounced with compost application, while poultry and pig manure were more beneficial for promoting soil P fractions and stable P contents compared with other manure types. The manure application rate had pronounced effect on increasing the stable P fractions. The effects of manure application on increasing soil P fractions were greater in soils with lower TP contents as compared to that in high TP soils. Manure effects on enhancing soil labile P and moderately labile P were greater in acidic soil than that in neutral and alkaline soils. In addition, soil P fractions showed significant correlation with latitude and mean annual precipitation (MAP). By integrating the impacts of manure types, soil properties, and climate, this meta-analysis would help to develop the management of manure application in a specific region of agriculture as well as promote the interpretation of the interfering factors on the soil P fractions changes in the manure-amended soils.
向农业土壤中添加粪肥是实现农业废弃物可持续利用的绝佳机会，同时还能带来多重益处，包括改善土壤质量以及提高植物对养分（包括磷）的可利用性。在本研究中，基于133篇同行评审论文中的411个独立观测数据进行了荟萃分析，以深入了解影响施用粪肥后土壤磷库转化的各种因素。与未添加粪肥的土壤相比，施用粪肥使所有土壤无机磷（P）增加了58.0% - 282%，有机磷（P）增加了65.0% - 105%，同时降低了P/总磷（TP）。粪肥类型、土壤TP和粪肥施用量是影响土壤磷组分的重要因素。施用堆肥时土壤活性磷的升高更为明显，而与其他粪肥类型相比，家禽和猪粪更有利于促进土壤磷组分和稳定磷含量。粪肥施用量对增加稳定磷组分有显著影响。与高TP含量土壤相比，在TP含量较低的土壤中，施用粪肥对增加土壤磷组分的效果更大。在酸性土壤中，粪肥对提高土壤活性磷和中度活性磷的影响大于中性和碱性土壤。此外，土壤磷组分与纬度和年均降水量（MAP）显著相关。通过综合粪肥类型、土壤性质和气候的影响，这项荟萃分析将有助于制定特定农业区域的粪肥施用管理措施，并促进对影响施用粪肥土壤中土壤磷组分变化的干扰因素的解释。
