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Position: Home > Articles > Study on Status of Available Phosphorus in Tobacco-growing Soils of Zhangjiajie City Crop Research 2015 (5) 499-501+515

张家界市植烟土壤有效磷养分状况研究

作  者：
王振华;彭德元;张晓阳
单  位：
湖南省烟草公司张家界市公司
关键词：
烤烟;土壤;有效磷;养分状况;张家界
摘  要：
在对张家界市植烟土壤磷素养分现状进行普查的基础上,结合生物盆栽试验所确定的植烟土壤磷素水平丰缺标准,进一步对该市植烟土壤磷素养分现状作出评价。结果表明,张家界烟区植烟土壤有效磷含量平均为34.9 mg/kg,植烟土壤有效P含量<10 mg/kg、10~20 mg/kg、20~30 mg/kg、>30 mg/kg的样点所占比例分别为23.7%、22.7%、18.1%与35.5%。施用磷肥对烟株生长的促进作用随土壤有效P含量的提高而逐步降低。依据土壤固有有效磷水平与磷肥施用效益的相关关系函数式,大致确定张家界烟区植烟土壤有效磷含量的丰缺标准为:土壤有效P<20 mg/kg时为低,20~40 mg/kg时为较低,40~60 mg/kg时为较高,>60 mg/kg时为高。由此,张家界全市植烟土壤有效磷水平处于低、较低、较高、高范围的比例分别为42.5%、23.1%、15.1%、19.4%。
译  名：
Study on Status of Available Phosphorus in Tobacco-growing Soils of Zhangjiajie City
作  者：
WANG Zhen-hua;PENG De-yuan;ZHANG Xiao-yang;Zhangjiajie Tobacco Company of Hunan Province;
关键词：
flue-cured tobacco;;soil;;available phosphorus;;nutrient ststus;;Zhangjiajie
摘  要：
At the base of investigation on soil available phosphorus in tobacco growing soils of Zhangjiajie city,pot experiments were carried out to define the abundant and deficient standard values of soil available phosphorus,and then the nutrient status in this area was evaluated. The results showed that the average content of soil available phosphorus in Zhangjiajie was 34. 9 mg / kg,the proportion of soil available phosphorus of < 10 mg / kg,10- 20 mg / kg,20- 30 mg / kg and > 30 mg /kg was 23. 7%,22. 7%,18. 1% and 35. 5%,respectively. The positive effect of phosphate fertilizer application on tobacco growth was decreased with the increment of soil available phosphorus content. According the relationship between soil available phosphorus level and the positive effect of phosphate fertilizer application,the standard values of soil available phosphorus in tobacco fields of Zhangjiajie was defined as follows: the content of soil available phosphorus being < 20 mg / kg,20- 40 mg / kg,40- 60 mg / kg,and > 60 mg / kg was defined as low,relatively low,relatively high and high,respectively. The proportion of soil available phosphorus being low,relatively low,relatively high and high was 42. 5%,23. 1%,15. 1% and 19. 4%,respectively.

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