Research on the Synergistic Mechanism of Maize–Soybean Rotation and Bio-Organic Fertiliser in Cold Regions DOI Creative Commons
Zijian Wang, Hao Tian, Nian X. Sun

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1256 - 1256

Published: May 21, 2025

Aiming to address a series of problems caused by inefficient nitrogen fixation in soybean within the maize–soybean rotation system under cold-region conditions Heilongjiang Province, China—such as reduced crop yields, declining soil fertility, and increased dependence on chemical fertilisers—this study investigated partial substitution fertilisers with bio-organic at replacement rates 10%, 20%, 30% during cultivation. The treatments included (OB1, OB2, OB3), inactivated (O1, O2, O3), Bacillus subtilis (B1, B2, B3), control (CK) conventional application fertilisers. In rotational maize cropping phase, 50% reduction was applied. results showed that replacing 20% fertiliser (OB2 treatment) yielded most significant increase productivity economic return. Compared CK, OB2 treatment yield 26.56%, 26.69%, use efficiency 3–5%. According GRA-TOPSIS model, demonstrated greatest capacity improve quality system. At maturity stage, total organic carbon, available phosphorus, protease activity 25.36%, 22.20%, 87.50%, respectively, compared CK. maturity, ammonium 80.24% 62.47%, respectively. Bio-organic combine benefits substrates those functional microorganisms. Correlation, cluster, interaction analyses revealed synergistic mechanisms between cold regions are primarily reflected improved quality, enhanced nutrient cycling efficiency, root nodules, stimulated microbial activity, greater resilience environmental stress. Sustainable agricultural production can be achieved through integrated functioning these components. This provides theoretical basis for enhancing systems climatic conditions.

Language: Английский

Research on the Synergistic Mechanism of Maize–Soybean Rotation and Bio-Organic Fertiliser in Cold Regions DOI Creative Commons
Zijian Wang, Hao Tian, Nian X. Sun

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(5), P. 1256 - 1256

Published: May 21, 2025

Aiming to address a series of problems caused by inefficient nitrogen fixation in soybean within the maize–soybean rotation system under cold-region conditions Heilongjiang Province, China—such as reduced crop yields, declining soil fertility, and increased dependence on chemical fertilisers—this study investigated partial substitution fertilisers with bio-organic at replacement rates 10%, 20%, 30% during cultivation. The treatments included (OB1, OB2, OB3), inactivated (O1, O2, O3), Bacillus subtilis (B1, B2, B3), control (CK) conventional application fertilisers. In rotational maize cropping phase, 50% reduction was applied. results showed that replacing 20% fertiliser (OB2 treatment) yielded most significant increase productivity economic return. Compared CK, OB2 treatment yield 26.56%, 26.69%, use efficiency 3–5%. According GRA-TOPSIS model, demonstrated greatest capacity improve quality system. At maturity stage, total organic carbon, available phosphorus, protease activity 25.36%, 22.20%, 87.50%, respectively, compared CK. maturity, ammonium 80.24% 62.47%, respectively. Bio-organic combine benefits substrates those functional microorganisms. Correlation, cluster, interaction analyses revealed synergistic mechanisms between cold regions are primarily reflected improved quality, enhanced nutrient cycling efficiency, root nodules, stimulated microbial activity, greater resilience environmental stress. Sustainable agricultural production can be achieved through integrated functioning these components. This provides theoretical basis for enhancing systems climatic conditions.

Language: Английский

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