Authors
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Chunxiao Yu
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Guangmei Wang
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Xiaoling Liu
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Haibo Zhang
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Qian Ma
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Hanwen Liu
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Yi Zhang
CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, No. 17 Chunhui Road, Yantai Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, No. 17 Chunhui Road, Yantai Shandong 264003, China
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Hongxiu Li
Shandong Saline-Alkali Land Modern Agriculture Company, No. 8 Zhihui Road, Dongying Shandong 257347, China
Keywords:
Green manure, Forage grass, Soil quality improvement, Saline-alkali land utilization, The Yellow River Delta
Abstract
Soil salinization and nutrient deficiency limit agricultural production in the Yellow River Delta region. This study investigates the green manure-forage grass rotation on soil quality and productivity. A two-year field experiment was conducted to investigate the effects of different varieties of Sesbania cannabina and ᵡTriticosecale Wittm rotations on soil properties, biological characteristics, and adaptability in coastal saline-alkali land. Four cropping rotation systems were set: Gaoyuan 2 - Lujing 2 (G2L2), Gaoyuan 2 - Lujing 5 (G2L5), Gaoyuan 1640 - Lujing 2 (G1640L2), and Gaoyuan 1640 - Lujing 5 (G1640L5). The G2L5 rotation demonstrated superior enhancement of soil quality. The soil organic matter increased by 35.8%, and the soil electric conductivity (CEC) increased by 20.2%. Compared with T. Wittm, S. cannabina had a significant positive effect on soil physical and chemical properties. S. cannabina L5 showed improved performance in mass density, fresh weight of stem, leaf and aboveground part, etc. After S. cannabina returned to the field, T. Wittm G2 had greater plant height, thousand-grain weight, and stem weight, and the yield reached 322 kg per 667 m2. In conclusion, G2L5 is the recommended planting model in saline-alkali soil. This research offers valuable insight for the efficient planting and sustainable development of coastal saline-alkali land.
