School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
National Engineering Research Center for Information Technology in Agriculture Beijing 10000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
School of Surveying and Land Information Engineering Henan Polytechnic University Jiaozuo Henan 454000 China;
Biomass; yield; potato; combination spectral index; vegetation index; combination variables; machine learning;