摘要
[目的]研究吐鲁番市葡萄种植区土壤养分含量分布特征并进行对比分析,以期为指导合理施肥和培肥土壤提供依据.[方法]采用野外调查采样和室内分析的方法分析土壤养分分布特征.[结果]研究区内0～ 60 cm表层土壤全氮含量（0.203 ～0.954 g/kg）;有机质含量（9.884～18.001 g/kg）;速效氮含量（56.54～84.5 mg/kg）;速效磷含量（12.427 ～76.107 g/kg）;速效钾含量（125.25 ～200.5g/kg）,变异系数（0.155＜ CV＜0.772）属于中度变异.土壤剖面全氮、有机质、速效氮养分分布在0～60 cm随土壤深度增加呈持续下降趋势,而速效磷分布较均匀,速效钾呈中部较高的抛物线.[结论]土壤肥力在全氮、有机质和速效氮指标上属于中等水平,而在速效磷和速效钾指标上属于中等偏上水平;葡萄乡、恰特卡勒乡和三堡乡土壤肥力较其他四乡偏低;全氮、有机质、速效氮含量土壤20 cm以上较多,速效磷在土壤剖面分布均匀,速效钾在土壤深20 ～40cm含量较多.
[Objective] The study focuses on the soil nutrient content distribution characteristics of wine -producing zone in Turpan area and conducting comparison analysis in order to provide the basis for guiding reasonable fertilization and soil fertility.[Method] Methods,such as field investigation,sampling and laboratory analysis of soil nutrient distribution were used in this study.[Results] In the study areas,total nitrogen content at the depth 0-60 cm soil was 0.203-0.954 g/kg; Organic matter content was 9.884-18.001 g/ kg; Available nitrogen content was 56.54-84.5 mg/kg; Available phosphorus content was 12.427-76.107 mg/kg; Rapidly-available potassium content was 125.25-200.5 mg/kg; Coefficient of variation was 0.155 〈 CV 〈 0.772,which belonged to the moderate variation.Soil total nitrogen,organic matter and available nitrogen nutrient in the soil profile were located at the 0 to 60 cm depth of the soil,showing a declining trend with the increase of the depths.And available phosphorus＇distribution was uniform and quick-acting potassium displayed a central high parabola.[Conclusion] The soil fertility on such indexes as the total nitrogen,organic matter and available nitrogen belonged to medium level,and on the indexes of available phosphorus and available potassium belonged to the average level in the study areas.Soil fertility in Grape Township,Kakler Township and Sanbao Town was lower than that of the other four towns.Total nitrogen,organic matter and available nitrogen content at the depth 20 cm soil were higher,available phosphorus was uniformly distributed in the soil profile and available potassium at the depth 20-40 cm soil was higher.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2014年第3期492-496,共5页
Xinjiang Agricultural Sciences
基金
新疆维吾尔自治区科技计划项目子课题"果园土壤肥力提升与果树产量
品质调控研究"(201130102-2)
关键词
葡萄果园
土壤养分
分布特征
grape
soil nutrient
distribution characteristics
