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近十年来我国在玉米高产栽培技术研究方面的进展突出表现在种子更新、合理密植、改进施肥、科学灌水、地膜覆盖等技术上
In the recent ten years, the progress of high yielding maize cultivation research in China has been highlighted in such fields as seed regeneration, rational close planting, improved fertilization, scientific irrigation and plastic film mulching