摘要
通过对温江县12年水稻土种含硫量的测定表明,除两个土种外,10个土种有效硫含量较低。对小麦、水稻和油菜茎秆及籽粒N/S测定,小麦、水稻缺硫。合理施用硫肥,增加土壤中的硫素营养,是当前农业环境中要注意的问题。
Based on the measurements of sulfur concentration for 12 kinds of paddy soil in Wenjian County and for seeds and straw of wheat, rice and rape, the analytical results show that 10 kinds of paddy soil are lack of available sulfur and so are seeds and straw of wheat and rice. In order to increase the concentration, reasonable application of Sulfur. fertilizer is very important for agricultural environmental protection.
出处
《四川环境》
北大核心
1993年第3期64-65,共2页
Sichuan Environment
关键词
全硫
有效硫
氮硫比
临界值
土壤
Total sulfur, available sulfur, ratio of nitrogen to sulfur, threshold value
