Study on Problems of Grain Production in Suburb under New Situations： A Case Study of Hanjiang District, Yangzhou
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Take Suburban Hanjiang District of Yangzhou as an example, based on the comprehensive analysis of total grain yield, yield per unit, planting areas and patterns over the recent years, present problems and constraints in this district under the background of continuous yield increase are pointed out and main approaches of high and stable grain yield in suburbs under new situations are studied, which provides references for grain production in the same type of regions.