Different fertilizations had obviously effects on nutrient character of soil, NH4(superscript +)-N and NO3(superscript -)-N contents of EF-treated soils were significantly higher than MF and control.
英
美
- 同时,生态肥与有机肥混合处理可明显改善土壤速效养分的供给水平,其NH4(上标+)-N和NO3(上标-)-N都显著高于其他处理。