The Sun effects weather. In turn the weather effects farming and the farmer. Plants require three things to grow: water, minerals, and light. The plants that farmers grow require the Sun to live. Without sunlight, all the green plants on earth would quickly die. Green plants use sunlight to make food and grow. But they also require water. In places where there is an over-abundance of Sun, there is usually a lack of water because of evaporation. Farmers in dry, sunny places constantly have to contend with shortages of water. Irrigation is one of the ways that farmers can fight this difficulty.

If there isn't enough Sun plant growth is stunted and crop returns are not bountiful. There is a fine line between an over-abundance of Sun and not having enough. If the amount of sunlight crops receive falls inside one of these two categories for very long a farmer's life can become very difficult. The plants also need the vitamin D that is given off by the Sun's rays, as well as the Sun's light to make food.

For thousands of years farmers have known that they must have good soil to produce good crops. Some soils are richer than others. A piece of ground that has had a moderate amount of Sun for a long time will be more desirable than a plot of ground that is dried from too much Sun, or a plot of ground that has not had enough Sun and has become stagnant. Farmers must consider all the different variables related to sunlight, irrigation, and soil choice before planting their crops and even with careful planning the Sun may bring crop failure.

The effect of the Sun on farmers themselves is that they are prone to getting heat disorders like sunburn, dehydration, or heat stroke, if they don't take the proper precautions to prevent them. Often you'll see farmers wearing some kind of hat to help keep the Sun out their face as well as protect them from sunburn.

Basically farmers rely on the Sun more than most of the other careers, because without the Sun they couldn't plant flowers and crops.