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Optimising sunflower yields: insights from meta-analysis on fertilisation impact and planting strategies for enhanced crop productivity in China

Author

Listed:
  • Shun Li

    (Academy of Animal Science and Veterinary, Qinghai University, Xining, P.R. China)

  • Zongqing Liu

    (College of Ecological and Environmental Engineering, Qinghai University, Xining, P.R. China)

Abstract

Sunflower serves as a valuable rotational crop, suitable for snack processing or sunflower seed oil extraction, proving to be a lucrative cash crop. To address sunflower yield uncertainties, this study employs meta-analysis to examine the impact of fertilisation. Utilising 41 studies and 392 pairs of observations based on four criteria, we found an overall 27% increase in sunflower yield with fertiliser application. Nitrogen (N), phosphorus (P), and potassium (K) individually applied raised yield by 23.37, 20.92, and 11.63%, respectively. Combined fertilisers (NP, NK, NP, and NPK) enhanced yield by 29.69, 28.40, 17.35, and 41.91%, respectively. Sunflower type minimally affects yield, while planting density significantly influences it. Combining local soil conditions and environmental factors with appropriate planting densities ensures maximum sunflower yield, fostering economic benefits for farmers. This study holds constructive implications for sunflower cultivation in China, contributing to increased yield.

Suggested Citation

  • Shun Li & Zongqing Liu, 2025. "Optimising sunflower yields: insights from meta-analysis on fertilisation impact and planting strategies for enhanced crop productivity in China," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 71(1), pages 48-57.
    • Handle: RePEc:caa:jnlpse:v:71:y:2025:i:1:id:303-2024-pse
    DOI: 10.17221/303/2024-PSE
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    References listed on IDEAS

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    1. Viechtbauer, Wolfgang, 2010. "Conducting Meta-Analyses in R with the metafor Package," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 36(i03).
    2. Shun Li & Zongqing Liu, 2024. "Fertilisation and environmental factors affect the yield and quality of alfalfa in China," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 70(5), pages 276-286.
    Full references (including those not matched with items on IDEAS)

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