Below are six signs you can easily recognize to determine if you are giving your plants too much water. Plants can have difficulty when they receive too much water, just as they do when they are given too little. The hypothesis, an increase in the amount of water will decrease plant growth, was not supported. Environmental factors that affect plant growth include light, temperature, water, humidity, and nutrition. With a basic understanding of these factors, you may be able to manipulate plants to meet your needs, whether for increased leaf, flower, or fruit production. This can contribute to livestock and aquatic animal death, increase the difficulty of water purification, as well as affect recreational use of the water. According to the Oregon State University Extension Service, light, water, temperature, and available nutrients are the four things that affect plant growth the most.You may wonder where soil fits in this discussion. 1. The ground can become frozen and the water sits on the top of the ground. Plant transpiration is discussed more in the temperature and growth … If it is too wet or too dry, nutrients in the soil can run off and not make it to the plants’ roots, leading to poor growth and overall health. Plants can grow without soil using a gardening method called hydroponics, but they cannot grow without nutrients. Additionally, as … Over-watering adversely affects the availability of oxygen to the roots This is the primary reason why too much water can kill a plant. It’s only natural for newbie gardeners to ask this question: “How does the amount of water affect plant growth?”. And excess boron can kill a plant. If farmers apply too much fertilizer, then it cannot be taken up be plants fast enough, or retained by the soil, so there is a danger that it will be washed through into the drainage water and get into the rivers. HOWEVER - too much of some nutrients, such as phosphorus, can jeapordize the quality of neighboring water bodies from run-off or leaching into the ground when not absorbed by plants. They title a page in their science notebook "How Does Water Affect Plant Growth" and glue their experiment foldable on that page. However, having too much of a nutrient can harm and even kill plants. Testing How Water Affects Plant Growth: I pass out the Experiment Steps - How Does Water Affect Plant Growth to each student. How Does Water Temperature Affect Plant Growth? The plants that were water 10ml, 20ml, and 30ml This study is conducted to find out how does the amount of water affect the growth of plants. A mistake not easy to diagnose because in many instances too much water mimics the signs of too little water. Without water, plants would not be able to uptake nutrients or transport nutrients within their tissue. Although there is a well-established relationship between water temperature and plant growth, the science of temperature regulation to achieve the best possible conditions for plant growth is not exact. Too much water results from rainy or snowy conditions in which the water does not properly absorb into the ground. Water is the thing that drives the plant transpiration cycle. Furthermore, too much water can also lead to root rotting and the irreversible decay of roots. Often the plant itself will die. For example, having too much nitrogen can cause a plant to grow more leaves but less or no fruit. If this happens then algal growth (and the growth of other water plants) in rivers can be stimulated and the result is eutrophication. Four Factors Affecting Plant Growth. It is important to understand how these factors affect plant growth and development. Soil Health Soil is also greatly affected by rainfall. 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