摘要
利用近期调查的耕地地力数据,比较研究了浙江省红壤丘陵区旱地与水田土壤肥力的差异。结果表明:红壤丘陵区旱地与水田土壤均呈现显著的酸化,两者pH值低于5.5的土壤比例均在60%以上,且旱地的土壤酸度大于水田;两种利用方式土壤的有机质和全氮平均含量均属中下水平,且水田的土壤有机质和全氮平均含量分别比旱地高17.05%和7.45%;旱地的土壤有效磷和速效钾平均含量分别比水田高82.61%和58.79%;与自然红壤相比,水田的土壤有机质、全氮、有效磷含量和pH值呈现上升趋势,速效钾含量呈现显著的下降,而旱地的土壤全氮、有效磷和速效钾含量呈现上升趋势,有机质含量和pH值呈现下降。
The differences in soil fertility between upland and paddy field in red soil hilly region of Zhejiang province were comparatively studied by using the recently acquired investigation data of the cultivated lands. The results indicated that: the soils of both upland and paddy field in the red soil hilly region of Zhejiang province exhibited significant acidification, the proportion of two types of soils with the pH-value of less than 5.5 was over 60%, and the soil acidity of upland was higher than that of paddy field;the average contents of soil organic matter and total nitrogen in both upland and paddy field were at medium or low level, and the average soil organic matter and total nitrogen contents in paddy field were 17.05% and 7.45% higher than those in upland, respectively;the average soil available phosphorus and available potassium contents in upland were 82.61% and 58.79% higher than those in paddy field, respectively;in comparison with the natural red soil, the contents of soil organic matter, total nitrogen and available phosphorus, as well as the soil pH-value in paddy field showed rising trend, and the content of soil available potassium in paddy field showed a significant decreasing trend, while the contents of soil total nitrogen, available phosphorus and available potassium in upland revealed rising trend, and the soil organic matter content and pH-value in upland decreased.
作者
童文彬
杨良觎
章明奎
TONG Wen-bin;YANG Liang-yu;ZHANG Ming-kui(Soil and Fertilizer Technology Extension Station of Qujiang District, Zhejiang Province, Quzhou 324022, China;College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China)
出处
《江西农业学报》
CAS
2019年第4期46-50,共5页
Acta Agriculturae Jiangxi
基金
国家自然科学基金项目(41571207)
关键词
浙江省
红壤
水田
旱地
酸化
养分
Zhejiang province
Red soil
Paddy field
Upland
Acidification
Nutrient
