中文摘要：

以喀什地区立架伽师瓜为研究材料,试验设置6个水平（0、150、225、300、375和450 kg·hm-2）施磷量的田间试验,研究土壤速效磷（Olsen_P）浓度对立架甜瓜生物量和磷素累积特征的影响。结果表明,施磷条件下立架甜瓜田间土壤Olsen_P浓度的动态变化可用三次函数方程模拟,立架甜瓜生物量、磷素累积动态遵循Logistic曲线;土壤Olsen_P浓度快速下降期的平均速率、持续时间分别与立架甜瓜生物量、磷素快速累积期的最大相对累积速率、持续时间存在显著或极显著的相关性;在150-225 kg·hm-（-2）施磷量条件下,土壤Olsen_P浓度快速下降期的平均速率（0.078-0.108 mg·d-（-1））和持续时间（36.1-52.0 d）最佳,立架甜瓜生物量和磷素快速累积期的累积特征值,生物量、磷素累积特征值、产量以及品质均最优,其中生物量和磷素累积理论最大值以及产量分别达515.8-529.2 g·株-（-1）,1 791.4-1 895.2 mg·株-（-1）和68 972.0-71 037.6 kg·hm-（-2）。高施磷量（450 kg·hm-（-2））和不施磷（0 kg·hm-（-2））均不利于立架甜瓜生物量和磷素的累积。土壤Olsen_P浓度的动态变化能响应立架甜瓜生物量和磷素的累积状况,尤其是合理施用磷肥（150-225 kg·hm-（-2））可调节立架甜瓜田间土壤Olsen_P浓度的动态变化,优化立架甜瓜生物量和磷素的累积以及提高其产量和品质。

英文摘要：

Phosphorus is the main nutrient factors improving trellis-cultivated melon yield and quality. This study aims to investigate the response of soil available phosphorus variation of different phosphorus levels and growth of trellis-cultivated melon,providing theoretical basis for the reasonable application of phosphate fertilizer in trelliscultivated melon production. The effects of soil Olsen_P concentration on biomass and phosphorus accumulation of trellis-cultivated melon was investigated by applying six levels of phosphorus fertilizer（ 0,150,225,300,375 kg·hm-（-2） and 450 kg·hm-（-2））,under field experiment of planting melon in Kashgar. The results showed the change of soil Olsen_P concentration could be simulated with a cubic function,biomass and phosphorus accumulation of trellis-cultivated melon with logistic formula. Average rate and duration for the soil Olsen_P concentration reduction rate had significant or extremely significant correlation with the maximum rate and duration of accumulation of biomass and phosphorus. Under the P level between 150 kg·hm-（-2）to 225 kg·hm-（-2）,the soil Olsen_P had optimal average reduction rate（ 0. 078 - 0. 108 mg·d-（-1）） and duration（ 36. 1 - 52. 0 d）,trellis-cultivated melon had optimal biomass and phosphorus accumulation eigenvalues,and had the highest yield and optimal quantity. The maximum value of biomass and phosphorus accumulation as well as yield of trellis-cultivated melon in 150 kg ·hm-（-2） and 225 kg·hm-（-2） treatments were 515. 8 - 529. 2 g ·plant- 1,1791. 4 - 1895. 2 mg·plant-（-1） and 68972. 0 -71037. 6 kg·hm-（-2）,respectively. high（ 450 kg·hm-（-2）） or low（ 0 kg·hm-（-2）） phosphorus application was not favorable for biomass and phosphorus accumulation. The dynamic change of soil Olsen_P concentration responded to the biomass and phosphorus accumulation of trellis-cultivated melon. The optimal phosphorus applied level between150 kg·hm-（-2） to 225 kg·hm-（-2） can regulate soil Ols