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农学学报
黑龙江西瓜延后上市保护地高产栽培技术
许更宽
The Heilongjiang watermelon engages the queen appearing in the market protecting field high-yield culture technique
农学学报 . 2010, (3): 0 -0 .  DOI: 10.11924/j.issn.2095-4050.2009-xk0130