Response of Crop Yield and Productivity Contribution Rate to Long-Term Different Fertilization in Northeast of China

作者：Xingzhu Ma, Xiaoyu Hao, Yue Zhao, Xinhua Peng, Jinghong Ji, Shuangquan Liu, Yufeng Zheng, Lei Sun, Baoku Zhou · 发表于：Plants · 年份：2025 · DOI：10.3390/plants14010132 · 被引用次数：7 · 研究领域：Soil Carbon and Nitrogen Dynamics、Soil erosion and sediment transport、Crop Yield and Soil Fertility

To reveal the changes in crop yield and contribution rate of black soil productivity under long-term different fertilization conditions in black soil areas and to find the important significance of fertilization for sustainable and stable crop yield, high yield, and improving the contribution rate of black soil nutrients. Based on the long-term experiment of black soil fertility in Harbin, the Ministry of Agriculture and Rural Affairs, under the maize–wheat–soybean rotation system, crop yield, sustainability and stability of yield, the contribution rate of black soil productivity, and natural nutrient supply capacity under 10 fertilization treatments (CK, NP, NK, PK, NPK, M, MNP, MNK, MPK, and MNPK) were analyzed. Results showed that, compared with the treatment of chemical fertilizer, yields of maize, wheat, and soybeans increased under treatment of organic fertilizer combined with chemical fertilizer, among which the yields of maize and wheat changed the most. As the rotation period lengthened, the sustainable yield index (SYI) values of chemical fertilizer treatment and its combination with organic fertilizer treatment gradually decreased. During the rotation period, the SYI value follows: chemical fertilizer combined with organic fertilizer > chemical fertilizer > organic fertilizer. The coefficient of variation (CV) of yield stability showed an overall trend of increasing first and then decreasing, with individual treatments showing a gradual increasing trend (NP a...