DB13/T 2042.2-2014 The labor-saving and high-efficiency cultivation model of pear part 2: technical regulations for planting and utilization of pear orchard rye (English Version)
Hebei Provincial Standard of the People's Republic of China
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DB13/T 2042.2-2014
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2014DB13/T 2042.2-2014 The labor-saving and high-efficiency cultivation model of pear part 2: technical regulations for planting and utilization of pear orchard rye