关键词: 磷肥, 有机肥, 产量效应, 磷积累, 环境风险

Abstract: Abstract: 【Objective】The yield response of Chinese cabbage to phosphate fertilizer and organic manure , The effect of phosphorus accumulation, maximum phosphorus sorption buffering capacity, soluble phosphorus in irrigating stayed water, the rate of leaching phosphorus were also investigated under different rates of phosphate fertilizer and organic manure; 【Method】The yield response of crop to phosphate fertilizer and organic manure and the risk assessing of loss phosphorus in soil by long-term experiment. 【Result】Results showed that application of phosphate fertilizer and organic manure significantly increased the yield of Chinese cabbage , Application of P2O5 at rate of 360 kg·ha-1 or application of organic manure at rate of 150 t·ha-1 gave an yield increase significantly. The yield was not changed with excessive rate of phosphate fertilizer and organic manure, significantly. The content of Olsen-P, CaCl2-P, NaOH-P, soluble phosphorus in irrigating stayed water in soil were increased significantly with the increase rate of phosphate fertilizer and organic manure. The degree of phosphorus sorption saturation in soil was increased, Maximum phosphorus sorption capacity (Qm) and the index of phosphorus sorption were decreased. The content of Olsen-P and CaCl2-P were increased in the layer of 20～40 cm soil significantly，The risk of phosphorus loss was increased. 【Conclusion】The yield was not increased with excessive rate of phosphate fertilizer and organic manure, significantly. The content of Olsen-P, CaCl2-P, NaOH-P, soluble phosphorus in irrigating stayed water in soil were increased significantly with the increase rate of phosphate fertilizer and organic manure. The content of Olsen-P was positively correlated with CaCl2-P, NaOH-P and the degree of phosphorus sorption saturation, but the content of Olsen-P was negatively correlated with maximum phosphorus sorption capacity (Qm) and the index of phosphorus sorption. The risk of phosphorus loss was increased. Phosphorus was leached in the layer of 20～40 cm soil significantly.