How different concentrations of fertiliser affects the growth of a plant.
The experiment was started on the 12/3/14.
Introduction/research:
From my own knowledge I know that Fertilisers are used on plants to help them grow faster, bigger and greener. Over fertilising a plant will usually result in the plant dying or making the plant grow slower and shorter whilst applying not enough fertiliser will stop the plant from growing to its full potential. From research I have found that in order to help a plant grow they need certain chemicals. The most important chemicals to help a plant grow are potassium, phosphorus and nitrogen, these chemicals are usually found in most fertilizers.
Aim:
To find out what happens to the growth of a plant when different concentrations of the recommended amount of fertiliser, are used on the plants.
Hypothesis:
As the amount of fertiliser used to water the plant from the recommended amount increases or decreases the plants growth will slow down making the height of the plant after the time period of 15 days shorter compared to the growth of the plant that had been watered with the recommended amount of fertiliser. This is because watering the plant with too much or too little fertiliser will slow down or fail to increase the speed of growth because using too much or too little fertiliser slows down the growth of the plant since the plants are being given too much or too little nutrients and chemicals, and when given in the right amounts these chemicals help the plant to grow faster and taller.
Variables:
Independent variable: The Concentration of fertiliser in the water lower and higher than the recommended amount. Using more or less of the recommended amount of fertiliser will change this va...
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...0mls of water twice a day so the plant gets 100mls of water daily. Spray the plant once in the morning and once in the evening. Repeat this process for each plant pot.
4. Repeat step 3 for 15 days until results are recorded.
5. On the second day arrange The 15 plant pots into 5 groups with three in each group, label the groups of plants, group 1,2,3,4 and group 5 with the amount of fertiliser used for each group of plant as shown below.
Water the 3 plants in-group 1 with 30% of the recommended amount of fertiliser.
Water the 3 plants in-group 2 with 60% of the recommended amount of fertiliser.
Group 3 is the control group. Water the plants in-group 3 using the recommended amount of fertiliser.
Water the 3 plants in-group 4 using 130% of the recommended amount of fertiliser.
Water the 3 plants in group 5 using 160% of the recommended amount of fertiliser.
One thing I could have done to improve my experiment was to have used a more secure lid on the growth tray to have ensured that all moisture would have stayed in the appropriate area. This makes me less confident about my data because there is a possibility that it could have disrupted the moisture levels in the soil and could have minorly diluted or concentrated
The level of Nitric Oxide in the plants were measured by taking samples of the root and the leaves. A dye was applied to the nitric oxide in order for it to be more clear when viewed.
The null hypotheses of the tested plant are that the average mean of the treatment plant would not have a difference on the height of the plant whether it water only to gibberellic acid. It not just a Gibberellic acid, but it has water as well.
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3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
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the plant and kill it, but if the right amount is added then it should