顺昌县水田土壤肥力现状及中稻施肥建议

Soil nutrient condition in paddy field and fertilization strategy on semilate rice of Shunchang County

采集顺昌县水田土样1887个进行分析,结果表明:有机质、碱解氮中等含量以上的分别占91%、78.22%,有效磷含量中等的占56.92%,速效钾缺乏的占77.85%;交换性钙、有效锌处于丰富水平,有效硫处于中下水平,交换性镁较为缺乏,有效硼处于严重缺乏水平。针对顺昌县水田肥力状况,中稻施肥建议稳氮和磷、增钾、补充中微量元素,并推广种植紫云英与秸秆还田。

1887 soil samPles from Paddy field were collected and analyzed. The results showed that the ProPortion of samPles with organic matter and available nitrogen contents above medium level occuPied by 91% and 78. 22% resPectively,the a-vailable PhosPhorus content at medium level was 56. 92%,the available Potassium content at deficient level was 77. 85%. And exchangeable calcium and available zinc were at abundant level,available sulfur was at middle-low level,exchangeable magnesium was lack,available boron was severe lack. According to the fertility status of Paddy field in Shunchang County, fertilization in middle rice croPPing season should stabilize nitrogen and PhosPhorus aPPlication,increase Potassium amount, suPPlement medium and trace elements and PoPularize Planting milk vetch and returning straw back to field.