玉米和大豆是世界上生产的两种主要粮食作物，因为它们在油料、人类消费品和动物饲料中的用途各不相同。由于这些广泛和广泛的用途，重要的是检索最高的产量可能获得最大的利润。天气压力是减少这些回报的一个因素。在过去的30年里，干旱和热浪给美国各地的农作物生产造成了约1450亿美元的损失(洛特和罗斯，2006年)。天气是自然不可预测的，随之而来的是各种变量和众多的因素，这些因素会导致影响作物产量和生长的胁迫因素。汤姆逊指出，“作物产量的变化主要是由于当地和区域的天气和气候，而不是大规模的气候动态，这强调了地方和区域尺度分析的重要性(汤姆逊等人，2005年)。“虽然压力在视觉上是显而易见的，但更有害的是在植物受到压力时被忽视的迹象。”在这篇文章中，我将讨论天气胁迫，特别是干旱，对玉米和大豆发育阶段的影响，从而影响产量结果。我还将介绍当前用于恢复或停止影响产量的干旱因素的管理实践，以及允许制定新的管理实践的现有研究。
澳洲悉尼环境科学作业代写 玉米和大豆
Corn and soybeans are the two major grain crops produced within the world due to their various uses among oils, use in human consumption products, and animal feed. Due to these vast and wide uses, it is important to retrieve the highest yields possible to gain the most profit. One factor that can diminish these returns is weather stress. During the last three decades, drought and heat waves caused about $145 billion in damages to crop production across the United States (Lott and Ross, 2006). Weather is naturally unpredictable and with that comes variables and numerous factors that can cause stress factors in crops that affect yield and growth. Thomson states “variability in crop yield is primarily due to local and regional weather and climate rather than large scale climate dynamics, which stresses the importance of the local and regional scale analysis (Thomson et al., 2005).” While stress can be visually obvious, the more detrimental is the signs that go unnoticed during times of plant stress. In this paper, I will discuss the effects of weather stress, specifically drought, on corn and soybean developmental stages that influence yield results. I will also dip into current management practices used to recover or halt drought factors that influence yield, as well as current research being done that allows for new management practices to be formulated.
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