摘要
根据近期土壤速效钾测试值与第二次土壤普查时期测试值比较，黔东南州土壤钾有大幅度下降，水稻土降幅为７～８７ｍｇ／ｋｇ土，旱作土降幅为５５～１５６ｍｇ／ｋｇ土。针对上述情况，提出推广平衡施肥、秸秆还田、增施有机肥、种植绿肥以及开发富钾植物等补钾措施。
By the recent analysis results of the available potassium contents in comparison with those taken at the 2nd national soil investigation, the soil available potassium level has greatly declined with a drop rate of 7～ 87 mg/kg for paddy soils and 55～ 156 mg/kg for upland soils. In view of these conditions, the amendment measures for balanced application of fertilizers such as returning crops' straws back to fields, more use of organic manure, planting of green manure and exploration of potassium rich plants, etc. are recommended.
出处
《贵州农业科学》
CAS
1999年第4期33-35,共3页
Guizhou Agricultural Sciences
