东北三省1987—2018年的种植业氮素投入与未来减施潜力 / Nitrogen application rate and reduction potential in northeast China in 1987-2018
- Resource Type
- Academic Journal
- Source
- 浙江农业学报 / Acta Agriculturae Zhejiangensis. 34(4):851-858
- Subject
化肥减施;作物养分需求;氮肥 - Language
- Chinese
- ISSN
- 1004-1524