# Plants Growth Investigation

Eugenia B. Tomas K-8 Center Science Fair “Plants Growth investigation” Student: Daniela Tristan. Teacher: Mrs.

Pena. 2010. Title of the project: Plants Growth investigation Abstract: The purpose of this experiment is that by watering more a plant will help it grow more or less. I hypothesized that the plant that will grow the most will be the plant that will be watered the most. Hypothesis If a plant given an unlimited supply of moisture will grow more rapidly than a plant given the recommended amount of water.

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To prove my hypothesis I will use the following materials: Bean and mielie seeds • Cotton wool • Tap water My preparation includes: • Putting one cotton wool ring on six separate saucers • Placing one bean and one mielie seed on each ring • Covering the seeds with another ring • Label three as A and three as B Group A got 10ml water as a start and from there on 4ml three times a day. Group B got 50ml water that was kept constant throughout the experiment. By placing both on the same windows ill means it will be a fair test. Independent variable: amount of water given Dependent variable: the growth rate

Controlled variable: environment and climate First the two plants were bought from Walmart.

Also my mom and I put a paper labeling plant watered the most will be plant labeled A and plant B will be the one watered the most. Then I had been measuring the growth of the plants. And for last plant B will be watered in the morning and in the night and plant A will be watered every other day. My results are that the plant that is watered the most will grow the most. My conclusion is that by watering a plant the most can help people like farmers to grow their plants faster.

Background info: Irrigation dose is the amount of irrigation water that we apply to our plants according to their specific needs.

It is usually expressed in liters per square meter per year (l/m2/year) for small surfaces, and cubic meters per hectare and per year (m3/na/year). Obviously the risk does not apply everyday of the year, but only during the growing season of each plant . So you have to know hot to apply this liters during that period. A distribution of water may be like that: ? April 10% ? May 15% ? June 25% ? August 20% ? September 5%

If a plant is in the process of germination (seed) is not affected too much water too as this is the stage where more needs water, of course there are exceptions, this need for water because it helps to starch degradation their germination. On other hand a state plant receives too much water (over flooding),undergoes a process of stress that eventually kill he plant because the roots do not receive necessary amount of oxygen, cannot eliminate CO2,photosyntesis and Dela,other gases are microorganisms that live without oxygen (anaerobes) that attack the plant ETC….

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How many liters of water you should apply to the plants per month: ? April 50 liters. ? May 75 liters. ? June 125 liters. ? July 125 liters. ? August 100 liters.

? September 25 liters. The excess of water of the substrate should not be too long to plants. The roots will suffocate and die. The first sign that something is wrong is a plant shutdown. The following symptom is a wilted plant though there is water in the substrate.

Bibliography: Books: ? Your garden. ? How to take care of your garden. Internet: ? www. infojardin. com ? http://ezinearticles.