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Chinese Agricultural Science Bulletin ›› 2026, Vol. 42 ›› Issue (7): 8-14.doi: 10.11924/j.issn.1000-6850.casb2025-0610

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Effects of Different Application Rates of Soybean Phospholipid Amendments on Yield and Nutrients Uptake in Maize-Wheat Rotation System

GUAN Xilin1(), TIAN Shenzhong1, LIU Zhentian2, DONG Qinde3, DONG Liang1, LI Qiang3, GAO Xinhao1, BIAN Wenfan1, ZHANG Yufeng1()   

  1. 1 Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences/State Key Laboratory of Nutrient Use and Management/ Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture and Rural Affairs, Jinan 250100
    2 Linyi Rural Revitalization Service Center, Linyi, Shandong 276001
    3 Shandong Zhizhiyuan Ecological Engineering Co. Ltd., Linyi, Shandong 276300
  • Received:2025-06-28 Revised:2026-01-10 Online:2026-04-15 Published:2026-04-15

Abstract:

The purpose of this study is to evaluate the effect of soybean phospholipid amendments on crop yield and crop nutrients uptake, providing references for the crop yield and soil fertility improvement in the northwestern Shandong Province. A field experiment with five treatments was conducted in 2022 in Dezhou City, Shandong Province. The treatments were as follows: conventional management (T1), additional application of 300 kg/hm2 (T2) and 600 kg/hm2 (T3) soybean phospholipid amendments on the basis of T1, 20% (T4) and 30% (T5) reduction in chemical fertilizer input on the basis of T3. Crop yield, crop nutrient uptake and soil nutrient content were measured to evaluate the effects of soybean phospholipid amendments on crop yield and soil fertility. Compared with T1, T3 and T4 significantly increased maize yield by 11.3% and 16.0% through enhancing kernels per row and kernels per ear, while no significant effect was observed in T2 and T5. Wheat yield was significantly increased by 0.56 and 0.51 t/hm2 through enhancing spike numbers. The application of soybean phospholipid amendments can increase soil available phosphorus content and plant phosphorus uptake. T3, T4 and T5 showed 31.0%-55.2% and 12.5%-15.4% enhancement in phosphorus uptake compared with T1 for maize and wheat, respectively. Therefore, in the maize-wheat rotation system of northwestern Shandong, it is recommended to apply 600 kg/hm2 soybean phospholipid amendments on the basis of conventional management or with 20% reduction of chemical fertilizer.

Key words: soybean phospholipid amendments, maize, wheat, yield, nutrient uptake, soil nutrient, phosphorus