Distribution of Phosphorus in Soil Profiles after Continuous Application of Different Fertilizers

This study clarifies the distribution and migration characteristics of phosphorus in the soil profile and discusses the phosphorus load of farmland after continuous application of different organic fertilizers. The distribution and migration characteristics of phosphorus in soil profiles were studie...

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Bibliographic Details
Published inHuanjing kexue Vol. 38; no. 12; p. 5247
Main Authors Zhang, Tian, Xu, Hao, Ru, Shu-Hua, Su, De-Chun
Format Journal Article
LanguageChinese
Published China 08.12.2017
Subjects
Agriculture
Animals
Chickens
Environmental Monitoring
Fertilizers
Manure
Phosphorus - analysis
Sewage
Soil - chemistry
Swine
soil profile
transfer
accumulation
organic fertilizer
phosphorus
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Summary:This study clarifies the distribution and migration characteristics of phosphorus in the soil profile and discusses the phosphorus load of farmland after continuous application of different organic fertilizers. The distribution and migration characteristics of phosphorus in soil profiles were studied through a field experiment lasting four consecutive years. The results showed that total phosphorus and Olsen-P are mainly accumulated in the soil surface, and their contents decrease with the deepening of soil depth after the continuous application of different fertilizers. With a four-year application of higher levels of organic fertilizer, the total phosphorus was found to migrate into the 15-30 cm soil layer. Olsen-P was found to migrate into the 60-90 cm soil layer under higher levels of pig manure. The ratio of available phosphorus to total phosphorus in the soil surface increased, and there were significant differences after the application of different amounts of organic fertilizers. The amount of Olsen-P
ISSN:0250-3301
DOI:10.13227/j.hjkx.201705027