玉米捆束收割机
maize binder
maintenance and repair operation
玉米辣椒间作
Maize-capsicum intercropping
玉米连作
Continuous cropping of corn
Continuous cultivation of corn
Continuous cropping of maize
玉米连作土壤
Continuous corn cropping soil
玉米联合固氮工程菌(UB37)
Azospirillum brasilense UB37
玉米磷酸烯醇式丙酮酸羧化酶PEPC
Zea mays phosphoenolpyruvate carboxylase PEPCase