请用正式的专业语气重写以下文本，用于在学术会议论文中呈现，并且在文献综述部分包含的相关理论支持不少于3篇。
FIGURE 1: 影响因素深度分析
摘要：研究背景、作物产量的重要性、农作物的喜好对产量非常大的影响。这个在前期做气候分析时有提到。重要分析原因是不同的生长年限对产量影响。展开可以发散一下。前期调研时，地区的农业结构对农业政策具体制定起到了参考作用。这种作用是积极的。培育新品种难度大。

literature review：这里需要引用不少于3篇文献以支持研究。

建议的文献综述：
1. Smith et al., 2019, 《作物产量与气候变化的关系》—— 支持本研究的气候分析方面。这本书探讨了气候对不同作物的影响，正好呼应了我们的前期气候分析。
2. Johnson, 2017, 《农业政策的有效性分析》—— 本研究提到了农业结构对政策的影想，这本书探讨了政策制定的复杂性只要是它涉及到多个地区的农业构成尤其是农村地区的变化对全国农业政策制都能起到点晴之笔的作用。 
3. Brown and Green, 2016, 《作物新品种培育的挑战》—— 相关的播种技术、育种系统的复杂性，在新品种培育上一直是个难点。这本书详细探讨了育种系统的复杂性，最新技术和可行性。它相关性与同时提供的方法链能够帮助本研究提供有用的经验性的引导线。
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FIGURE 1: In-depth Analysis of Influencing Factors

Abstract:
The importance of crop yield within the research context is paramount, with the preferences of the crops exerting a significant impact on yield. This aspect was previously addressed in our climate analysis. Notably, the varying growth durations significantly influence crop yield, warranting further exploration. Preliminary investigations have underscored the role of regional agricultural structures in the formulation of agricultural policies, indicating a positive contribution. The challenges associated with cultivating new crop varieties are substantial.

Literature Review:
To substantiate our research, we have referenced the following key works:

1. **Smith et al., 2019**, in their work "The Relationship between Crop Yield and Climate Change," provide substantial support for the climate analysis aspect of our study. They extensively explore how climate influences various crops, aligning closely with our preliminary climate analysis.

2. **Johnson, 2017**, within "An Analysis of the Effectiveness of Agricultural Policies," delves into the intricacies of policy formulation, emphasizing the role of agricultural structures across diverse regions. His insights into how regional agricultural changes influence national agricultural policies are particularly pertinent to our discussion on the impact of agricultural structures on policy-making.

3. **Brown and Green, 2016**, in "Challenges in Cultivating New Crop Varieties," address the complexities of breeding systems and related technologies in the context of new variety development. Their detailed exploration of breeding system complexity and the latest technological feasibility offers valuable empirical guidance for our research, particularly in navigating the challenges of new variety cultivation.

The incorporation of these references significantly enriches our literature review, providing a solid theoretical foundation for our research.
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