摘要
对开原市水稻主产区1357个水田土样进行数据比较分析,结果表明:全市水田土壤肥力中等,土壤有机质含量缺乏,全氮和速效钾含量中等偏下,有效锌含量中等,有效磷含量稍丰,有效铁、锰、铜、硫含量丰富,显微酸性。并根据养分丰缺情况及土壤质地特点,提出总的施肥原则是在提高有机肥用量的基础上,稳氮、减磷、增钾和适量施锌。
In the paper, data were analyzed froml 357 samples of rice field in Kaiyuan City, the results showed that： the fertility of the paddy field was in the medium level but looking in organic matter, the contents of nitrogen and available potassium were below the medium level, the content of available Fe, Mn, Cu, S were rich and acid. According to the investigation, the fertilization was put forward： firming nitrogen, controlling phosphorus and increasing potassium and proper applying zinc based on increased organic fertility.
出处
《农业科技与装备》
2009年第2期17-20,共4页
Agricultural Science & Technology and Equipment
关键词
土壤肥力
水田
配方施肥
试验
开原市
soil fertility
paddy field
fertilizer recommendation
test
Kaiyuan City
