Abstract: A stable grain yield helps consolidate the sound development of agriculture and rural areas, gives full play to the role of agriculture, rural areas and farmers as an anchor, and stabilizes the market and economy. And it also lays a sound foundation for effectively responding to various risks and challenges, acquiring the initiative and ensuring sustainable and healthy economic development. In this paper, Eviews8.0 is used to analyze the relationship between grain yield and various influencing factors. The empirical findings show that there is a long-term equilibrium and short-term dynamic relationship among grain yield and grain sown area, fertilizer application amount and effective irrigation area, through researches such as unit root test, regression equation and error correction model. With other conditions unchanged, the grain yield respectively increased by 1.311058%, 0.202268% and 0.501729% for every 1% increase in grain sown area, fertilizer applied amount and effective irrigated area. At last, according to the results of empirical analysis, the countermeasures for increasing grain yield are put forward.

Keywords: New Era; Grain Yield; Influencing Factors; Co-integration Analysis.