东北黑土水稻主产区氮肥减施潜力研究
尹映华, 彭晓宗, 翟丽梅, 张亦涛, 王洪媛, 刘宏斌

Nitrogen fertilizer reduction potential in the main rice producing region of black soil in Northeast China
YIN Yinghua, PENG Xiaozong, ZHAI Limei, ZHANG Yitao, WANG Hongyuan, LIU Hongbin
图7 水稻施氮量和需氮量之间的相关性分析
Fig. 7 Correlation analysis between nitrogen application and nitrogen demand of rice