CAJ | 학술논문

[目的]研究植烟土壤 pH分布特征与主要养分的关系。[方法]采集大理市43套植烟土壤样品进行检测。[结果]大理市植烟土壤 pH值平均为6.52，适宜烤烟生产的土壤样品占样品总数的72.09%。在4种植烟土壤类型中，pH的高低顺序依次为新积土>水稻土>紫色土>红壤。在1780~2200 m 海拔范围，土壤pH值表现出逐渐降低的趋势。土壤有机质含量整体处于较丰富的水平，能够满足优质烤烟生产；土壤碱解氮、速效磷、交换性钙和交换性镁的平均含量均处于中等及偏丰富的水平，但分别有6.98%、11.63%、2.33%和4.65%的土壤养分还处于偏低水平；土壤速效钾含量偏低的土壤比例较大为58.14%。[结论]土壤pH值与交换性钙、交换性镁含量呈极显著相关，与其它土壤养分含量无显著相关性。
[목적]연구식연토양 pH분포특정여주요양분적관계。[방법]채집대리시43투식연토양양품진행검측。[결과]대리시식연토양 pH치평균위6.52，괄의고연생산적토양양품점양품총수적72.09%。재4충식연토양류형중，pH적고저순서의차위신적토>수도토>자색토>홍양。재1780~2200 m 해발범위，토양pH치표현출축점강저적추세。토양유궤질함량정체처우교봉부적수평，능구만족우질고연생산；토양감해담、속효린、교환성개화교환성미적평균함량균처우중등급편봉부적수평，단분별유6.98%、11.63%、2.33%화4.65%적토양양분환처우편저수평；토양속효갑함량편저적토양비례교대위58.14%。[결론]토양pH치여교환성개、교환성미함량정겁현저상관，여기타토양양분함량무현저상관성。
Objective] The aim was to study the distribution characteristics of soil pH values and its correlation with soil nutrients in tobacco-growing areas. [Method] Soil nutrients of 43 samples from tobacco-growing areas in Dali City were analyzed. [Results] The results showed that average pH value of tobacco-planting soil in Dali City was 6.52, soil samples which suited for flue-cured tobacco cultivation accounted for 72.09% of total soil samples. In four soil types of tobacco-growing areas, the pH values in a descending order were as fol ows: al uvial soil> paddy soil >purple soil >red soil. At the altitude range of 1 780-2 200 m, soil pH values showed a gradual decreasing trend. The average contents of soil organic matters were relatively abun-dant and general y suited for high-quality tobacco cultivation; the average contents of soil alkali-hydrolyzable nitrogen, available phosphorus, exchangeable calcium and exchangeable magnesium were general y at medium and abundant level, however, their rations under the medium level in some tobacco-growing areas were 6.98%, 11.63%, 2.33% and 4.65%, respectively; moreover, soil with lower available potassi-um contents occupied a large proportion, namely 58.14%. [Conclusion] Soil pH val-ues had significant correlation with exchangeable magnesium and exchangeable magnesium, however, they had no significant correlation with other soil nutrients.