| 李月梅，杨文辉，高玉亭，塔林葛娃.柴达木盆地枸杞种植园土壤养分状况评价[J].广东农业科学,2013,40(24):51-54 |
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柴达木盆地枸杞种植园土壤养分状况评价 |
| Evaluation of soil nutrients status of Lyciumbarbarrum orchard in Qaidam Basin |
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| DOI： |
| 中文关键词: 柴达木盆地 枸杞 土壤养分 盐分 |
| 英文关键词: Qaidam Basin Lycium barbarrum soil nutrients soil salinity |
| 基金项目:青海省重大科技专项（2012-N-A8） |
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| 摘要点击次数: 1453 |
| 全文下载次数: 686 |
| 中文摘要: |
| 通过对柴达木盆地四大枸杞种植区德令哈、都兰、格尔木和乌兰土壤养分采样调查及样品测试，分析不同区域枸杞园的土壤养分状况。结果表明，乌兰有机质含量最高，调查点中50%的样点分布在20~30g/kg范围内；德令哈碱解氮平均含量处于全地区前列，30.9%的样点分布在碱解氮大于200mg/kg范围；四大枸杞种植区土壤速效磷含量均处于较高水平；德令哈、乌兰土壤速效钾含量丰富，分别有50.6%和75.0%样点分布在大于200mg/kg范围。都兰土壤盐分含量最低，94.4%的样点盐分含量低于5g/kg；柴达木盆地采集的184个土样的pH值变幅为7.6~9.6，平均pH值为8.4，不同地区间无明显差异。综合分析认为，柴达木盆地枸杞种植区中乌兰和德令哈土壤肥力水平最佳，其次为格尔木袁都兰县土壤肥力水平最差，枸杞生产时应根据不同土壤肥力特点有针对性施肥。 |
| 英文摘要: |
| In order to know the soil nutrients status, investigation and soil sample determination were carried out in the Lycium barbarrum orchard of Qaidam Basin. Four sites were selected as the study area, they were Delingha, Dulan,Golmud and Wulan, respectively. The results indicated that the organic matter content was highest in Wulan county, 50.0% sample distributed in the range of 20~30 g/kg. It was found that the content of soil available nitrogen in Delingha city was the top in Qaidam Basin, 30.9 % sample distributed in the range of above 200 mg/kg. Compared with the 2nd national soil survey data, the soil available phosphorus content in whole Qaidam Basin was larger. In Delingha city and Wulan County,the content of available potassium in L. barbarrum orchard was ample, 50.6 % and 75.0 % sample distributed in the range
of above 200 mg/kg, respectively. In total area, the soil salinity was lowest in Dulan County, 94.4%sample distributed in the range of under 5 mg/kg. So it should be noted the large amount of salinity in some site of Qaidam Basin was likely to cause the secondary salinization. The soil pH values of L. barbarrum orchard in Qaidam Basin varied from 7.6 to 8.6 among 184 soil samples袁the average value was 8.4，no significant difference was found among four sites. In conclusion，Wulan county and Delingha city 's soil integrate fertility was the highest in all sites, followed by Golmu city and Dulan County. So the suitable fertilization strategy was recommended based on the characteristics of soil fertility classes and the fertilizer requirement in different growth periods of L. barbarrum. |
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