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Agricultural industry

Legacy Effects of Preceding Crops on Winter Wheat Revealed in New Study

Strategic Insights

— 2 min read

Researchers at Hebei Agricultural University in China have published a new study on the legacy effects of different preceding crops on winter wheat productivity and soil quality. The study, published in the journal Plants, highlights the crucial role of crop rotation in improving wheat yield and grain quality, as well as soil fertility. The research found that leguminous predecessors, such as mung bean and soybean, significantly evaluated grain yield and protein content in winter wheat compared to gramineous predecessors like maize and sorghum.

Key Takeaways:

  • The study found that leguminous predecessors, such as mung bean and soybean, significantly improved grain yield and protein content in winter wheat compared to gramineous predecessors like maize and sorghum.
  • The mung-winter wheat rotation (Mun-W) showed a 11.56% higher grain yield than the maize-winter wheat rotation (Mai-W), attributed to an increase of 4.05% in spike number per hectare and 14.31% in kernel number per spike.
  • The Mun-W facilitated the highest gluten protein content (8.22%) in winter wheat among five treatments, which was 6.06% higher than that in the sorghum-winter wheat system.
  • Soil organic matter (SOM) showed an advantage in legume-winter wheat rotations (Leg-Ws) compared to gramineous crop-winter wheat systems (Gra-Ws), with the Mun-W significantly enhancing SOM content by 0.99% relative to the Mai-W.
  • The study concluded that coupling coordination degree (CCD) and co-benefit index (CBI) in the Leg-Ws exhibited significant superiority of 62.41% and 42.22% over the Gra-Ws, respectively.

Statistics:

  • 11.56% increase in grain yield in the mung-winter wheat rotation (Mun-W) compared to the maize-winter wheat rotation (Mai-W).
  • 4.05% increase in spike number per hectare and 14.31% increase in kernel number per spike in the Mun-W.
  • 8.22% gluten protein content in winter wheat in the Mun-W, which was 6.06% higher than that in the sorghum-winter wheat system.
  • 0.99% increase in soil organic matter (SOM) in the Mun-W compared to the Mai-W.
  • 62.41% superiority of coupling coordination degree (CCD) and 42.22% superiority of co-benefit index (CBI) in legume-winter wheat rotations (Leg-Ws) compared to gramineous crop-winter wheat systems (Gra-Ws).

Sources:

  • Legacy Effects of Different Preceding Crops on Grain Yield, Protein Fractions and Soil Nutrients in Subsequent Winter Wheat. Plants, 2025,14(16):2598. (Plants - http://www.mdpi.com/journal/plants)
  • NewsRx. Hebei Agricultural University Researchers Highlight Recent Research in Plant Research (Legacy Effects of Different Preceding Crops on Grain Yield, Protein Fractions and Soil Nutrients in Subsequent Winter Wheat). Life Science Weekly. September 9, 2025; p 1573.

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