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当前位置: 首页 > 文章 > Soil Phosphorus Distribution as Affected by Irrigation Methods in Plastic Film House 土壤圈(英文版) 2011,21 (6)
Position: Home > Articles > Soil Phosphorus Distribution as Affected by Irrigation Methods in Plastic Film House Pedosphere 2011,21 (6)

Soil Phosphorus Distribution as Affected by Irrigation Methods in Plastic Film House

作  者：
Lijuan Yang;Yulong Zhang;Fusheng Li;Jorge Hugo Lemcof
单  位：
College of Agriculture, Guangxi University, Nanning 530005 (China);Institute of Soil, Water and Environmental Sciences, Volcani Center, Bet Dagan 50250 (Israel;College of Land Recourses and Environmental Science, Shenyang Agricultural University, Shenyang 110161 (China)
关键词：
cm;20;layer;treatment;subsurface;organic and inorgani
摘  要：
Water-saving irrigation methods have been increasingly used for vegetable cultivation in greenhouse or plastic film house. However, there is limited information concerning the effect of water-saving irrigation methods on soil phosphorus (P) behavior. In this experiment, drip and subsurface irrigation methods were applied, with furrow irrigation method as control, in Mollic Gleysols. Soil P distribution throughout the depth was significantly affected by irrigation methods. Total, Olsen, organic and inorganic P contents were greater in the topsoil (0-10 and 10-20 cm) than in the subsoil (20-30, 30-40, 40-50 and 50-60 cm). The Olsen P content throughout 0-60 cm layer under drip and subsurface irrigation treatments was lower than that under the furrow irrigation treatment. However, the total, organic and inorganic P contents from 20 to 60 cm under drip irrigation treatment were higher than or close to those under furrow irrigation treatment, but were lower under subsurface irrigation treatment than under furrow irrigation treatment. Under subsurface irrigation treatment, the contents of total, organic and inorganic P at the 0-10 cm layer were 78.0%, 1.3% and 3.7% greater than those at the 10-20 cm layer, respectively. But Olsen P content at the 10-20 cm layer was 5.7% larger than that at the 0-10 cm layer. These suggested that soil P behavior could be manipulated by soil water management to some extent.

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