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Predicting Sugarcane Yield via the Use of an Improved Least Squares Support Vector Machine and Water Cycle Optimization Model

Author

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  • Yifang Zhou

    (State Key Laboratory for the Protection and Utilization of Subtropical Agricultural Biological Resources, College of Mechanical Engineering, Guangxi University, Nanning 530004, China)

  • Mingzhang Pan

    (State Key Laboratory for the Protection and Utilization of Subtropical Agricultural Biological Resources, College of Mechanical Engineering, Guangxi University, Nanning 530004, China)

  • Wei Guan

    (State Key Laboratory for the Protection and Utilization of Subtropical Agricultural Biological Resources, College of Mechanical Engineering, Guangxi University, Nanning 530004, China)

  • Changcheng Fu

    (State Key Laboratory for the Protection and Utilization of Subtropical Agricultural Biological Resources, College of Mechanical Engineering, Guangxi University, Nanning 530004, China)

  • Tiecheng Su

    (State Key Laboratory for the Protection and Utilization of Subtropical Agricultural Biological Resources, College of Mechanical Engineering, Guangxi University, Nanning 530004, China)

Abstract

As a raw material for sugar, ethanol, and energy, sugarcane plays an important role in China’s strategic material reserves, economic development, and energy production. To guarantee the sustainable growth of the sugarcane industry and boost sustainable energy reserves, it is imperative to forecast the yield in the primary sugarcane production regions. However, due to environmental differences caused by regional differences and changeable climate, the accuracy of traditional models is generally low. In this study, we counted the environmental information and yield of the main sugarcane-producing areas in the past 15 years, adopted the LSSVM algorithm to construct the environmental information and sugarcane yield model, and combined it with WCA to optimize the parameters of LSSVM. To verify the validity of the proposed model, WCA-LSSVM is applied to two instances based on temporal differences and geographical differences and compared with other models. The results show that the accuracy of the WCA-LSSVM model is much better than that of other yield prediction models. The RMSE of the two instances are 5.385 ton/ha and 5.032 ton/ha, respectively, accounting for 7.65% and 6.92% of the average yield. And the other evaluation indicators MAE, R 2 , MAPE, and SMAPE are also ahead of the other models to varying degrees. We also conducted a sensitivity analysis of environmental variables at different growth stages of sugarcane and found that in addition to the main influencing factors (temperature and precipitation), soil humidity at different depths had a significant impact on crop yield. In conclusion, this study presents a highly precise model for predicting sugarcane yield, a useful tool for planning sugarcane production, enhancing yield, and advancing the field of agricultural production prediction.

Suggested Citation

  • Yifang Zhou & Mingzhang Pan & Wei Guan & Changcheng Fu & Tiecheng Su, 2023. "Predicting Sugarcane Yield via the Use of an Improved Least Squares Support Vector Machine and Water Cycle Optimization Model," Agriculture, MDPI, vol. 13(11), pages 1-23, November.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:11:p:2115-:d:1276068
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    References listed on IDEAS

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    1. Verma, Amit Kumar & Garg, Pradeep Kumar & Prasad, K.S. Hari & Dadhwal, Vinay Kumar, 2023. "Variety-specific sugarcane yield simulations and climate change impacts on sugarcane yield using DSSAT-CSM-CANEGRO model," Agricultural Water Management, Elsevier, vol. 275(C).
    2. Jessica Lima Viana & Jorge Luiz Moretti de Souza & Aaron Kinyu Hoshide & Ricardo Augusto de Oliveira & Daniel Carneiro de Abreu & Wininton Mendes da Silva, 2023. "Estimating Sugarcane Yield in a Subtropical Climate Using Climatic Variables and Soil Water Storage," Sustainability, MDPI, vol. 15(5), pages 1-18, February.
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    4. Qin, Nianxiu & Lu, Qinqin & Fu, Guobin & Wang, Junneng & Fei, Kai & Gao, Liang, 2023. "Assessing the drought impact on sugarcane yield based on crop water requirements and standardized precipitation evapotranspiration index," Agricultural Water Management, Elsevier, vol. 275(C).
    5. Senzheng Chen & Huichun Ye & Chaojia Nie & Hongye Wang & Jingjing Wang, 2023. "Research on the Assessment Method of Sugarcane Cultivation Suitability in Guangxi Province, China, Based on Multi-Source Data," Agriculture, MDPI, vol. 13(5), pages 1-17, April.
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