系统地探讨了玉米地膜制种促熟增产的作物生理学机理。
The physiological basis was discussed for the echnique of covering seedbed with plastic film in maize hybrid seed production.
系统地探讨了玉米地膜制种促熟增产的作物生理学机理。
The physiological basis was discussed for the echnique of covering seedbed with plastic film in maize hybrid seed production.
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