The Effect of Salt Concentration on Grass Growth Essay Example for Free

The Effect of Salt Concentration on Grass Growth Essay Our aim was to test the effect of different salinities on the growth of plants which what we did was measured different amounts of salt dissolved into 2 litres of water, watered the plant once with the salt water then for 9 days with pure ware. I found with my investigation that the less the salt, the more the growth of the plant. My aim was achieved by measuring the 5 fastest geminating (out of 20) and to measure the differences in growth of the plant. I also had a few difficulties in the duration of this experiment which were the sunlight on the plants direct which made the plants to begin to die and also the highest salinity plant was not growing. Introduction High salinity in the root zone effects the growth of many plant species (stunted growth), low salinity in the root zone affects the growth of this type of plant (higher growth) and/or no effect on both. Total growth and leaf area are affected. Different plant species may have different tolerances to salinity; in this case we are geminating mung beans, Still the high amounts of salt concentration that are present can cause the Mung beans germination rate to grow poorly and cause it to die at a faster rate. Having salt water in the roots can have an effect of less water being absorbed in which causes the plant to dry out. (1) Mung bean plants grow up to 18 to 36 inches this investigation will show if different amounts of salt (Nacl) will affect the growth of the average Mung Bean. 2)The average mung bean growth without any salt concentrations is 2 to 3 feet long. (3) This Experiment was carried out to see if Saltwater had affects to Mung beans and their growth. The Main aim of this experimental Investigation is to test the theory that Mung Bean growth is affected if there are High amounts of Salt in the water present in the plant. The 5 different parts to this experiment will be to set up 5 Groups of Mung Beans and in each one a different Salt concentration. (No salt, 1. 25g, 2. 5g, 5g, 7. g) Over a period of time they will be measured and referred back to the hypothesis to compare its relevance. It was Hypothesized that if the Salt Concentration in the water is increased then the Growth of The Mung bean will be effected and decrease from its normal growth rate. Materials and Method Five circular sheets of cotton wool was cut and put into styrafoam cups. 20 mung bean seeds were added to each cup then marked with a permanent marker â€Å"group 1-5† with amount of salt watered with. Place in a safe/dry place where sun is not directly pointing on. Next you are to make up salt solutions and measure each plant with correct salt solutions of 40ml each. For group (1) will have no salt in the water, group (2) will be watered with water that has 1. 25g salt dissolved in 2L (0. 06% NaCI w/v), group (3) will be watered with water that has 2. 5 g salt dissolved in 2L water (0. 123% NaCI w/v), group (4) will be watered with water that has 5 g salt dissolved in 2L water (0. 25% NaCI) and group (5) will be watered with water that has 7. 5 g salt dissolved in 2L water(0. 375% NaCI w/v) all of which of the same temperature. Be sure to keep a sample of the water in case your plant dies and you need to begin the experiment again. Ensure all conditions (same position with same sunlight kept on for the whole ten days, the correct level of salt is measured and correct amount of water is measured for the salt to dissolve, keep the temperature of the water the same every time you water, use the same amount of water to each which hydrates the plants, use same size containers for each group, ensure you use the same measuring equipment and measure at the same time of the day, every day). I observed the germinating seeds twice a day, once in the morning and once at night. I used a ruler to measure the height at 7:30pm for the whole ten days, recorded my results in a results table (a table to record the dater you collect in the experiment). Results Over the 10 days of this experiment, notes were made on the observations. For the first few days, the measurements and physical appearance remained average/ almost the same. Afterwards for the following measurements and remaining days, the plants started to show discoloration and group’s number, 1, 4 and 5 showed browning in the leaves and stem. For the remaining groups everything stayed the same and the measurements increased by a fair amount each day. As the last days approached, the last two groups were showing wrinkling and shrinking in the stem and leaves. The roots had died out and the plant started to bend down and eventually was laying on the bed of cotton wool in a brown color. (Measurements shown in figure 1) Discussion The final results of the experiment on the 10th day were, group 1 (0g of salt) 100mm, group 2 (1. 25g of salt) 108. 5mm, group 3 (2. g of salt) 100. 5mm, group 4 (5g of salt) 51mm and group 5 (7. 5g of salt) 46mm. The average results showing that by having more salt in the water have a chance of the plants to dry out faster is high. Having salt in the soil doesn’t always make the plants die, this is shown in the results above that the high salinity helps the growth of the plants but only by a small amount. (2) The last two groups had the least growth, showing that having high amounts of salt affects the plants ability to absorb water into the roots. 1) It has also supported that high amounts of salt can cause the plants to shrink in a small amount of time, which in the experiment the last two groups show that. Problems with the placing of the plants might have had too much sunlight coming through to maybe improve the growth of the beans, the plants didn’t have enough time to grow properly and have more further and specific results. Other days in the process it would rain but others it would be really sunny which didn’t make it very accurate because some days the plants didn’t even get to grow at all or they would die out because of the sun. The experiment could go for longer, to improve the results as they would have been different with just 10 ten days of growth, even less. The placing of the mung beans could have been chosen better, a place where there is less sunlight and less interference. The surface could have been better than just cotton wool, we could of used soil rather than wool which the beans may have grown better; or the groups could have had half soil and half cotton wool on the plate to compare which is the better choice.

Analysis of The Open Boat by Stephen Crane Essay -- The Open Boat Step

Analysis of The Open Boat by Stephen Crane Story: â€Å"The Open Boat,† 1897 Author: Stephen Crane (1871-1900) Central Character: There is no real central character in this story. All the men on the boat are spoken about more or less equally and no prominent character jumps out at the reader as being the central character. Although more emphasis is put onto the correspondent, and Billie the oiler. Other Character: The cook: bails water from boat. Billie the oiler: steers and rows boat, is the only of the men that does not make it alive to land. The correspondent: Also helps steer and row boat. Injured captain: gives commands to the crew as he lies against the water-jar speaking with a low and calm voice. Unnamed people on land: Coat swinger, naked man, etc. Setting: A 10 foot dinghy floats upon a rowdy ocean near the coast of Florida in January in the late 1800’s. It seems that everything on the sea is grey weighing heavily on the feeling of the men. There is a tired and frustrated feelings among the men as they want to leave the boat and return to land, although, Billie and the cook provide some humor when referring to the blasted oars and to pie. Narrator: The author, 3rd person, omniscient point of view. Events in summary: (1) Four men have survived from a sunken steamer and are stuck in a 10 ft steamer out at sea some where near the coast of Florida.(2)The Injured captain lay over the water-jar giving orders to the correspondent and Billie the oiler letting them know how to steer and row the boat. The crew makes its way to Mosquito Inlet light where they believe that there will be a house of refuge. (3) Seagulls taunt the crew, one in particular trying to land on the captain’s head. This kills the crew’s optimism about the wind blowing ashore. The oiler and the correspondent continue to row switching off when the other is tired. (4) The captain then spots a lighthouse on the horizon, like a small dot. The captain decides to use his jacket and an oar to make a sail to let the men rest. No one spots the boat and they find it curious, assuming that no one must be looking out the window out to the sea. They deicide to got back to sea to avoid the risky surf. (5) The wind d ies down and the men spot some more people on the shore. There is a van or a boat of some sort, and a man that is swinging his coat. They don’t actually try to help the crew they just ... ... sit comfortably in groups on the water while the sea tries to attack the men. The shark finds no use for the men, the correspondent views the windmill as a symbol of nature in that it is neutral and unconcerned by the men’s destiny sitting on the lonely shore. The characters can be studied through their relationships to their surroundings. The correspondent remembers a rhyme from his childhood, and he feels pity for the dying soldier mentioned in that verse. This verse never seemed important to him before, but now being menaced my nature and being alone in the cruel world he understands the soldiers situation. Evaluation: I enjoyed this story, because it had many different kinds of criticism that could be applied to it. Especially that of biographical criticism because it based off at true story that actually happened to the author himself. It was also nice to see the characters grow, as friends and as men. I also really enjoyed the style of writing and the use of similes, imagery, and detail. These really painted a picture in my head. Works Cited Crane, Stephen. â€Å"The Open Boat.† An Introduction to Fiction. X. J. Kennedy, Dana Gioia. New York: Longman 2005.215-233.

Native American Culture Facts

SYNDICATE 7 } } Bottlenecks in the processing system at RP1 Excessive truck-waiting time and costs annoying the berry growers Excessive labour costs Poor berry grading system } } Wet Berries 58% System throughput rate : 1200 bbls/hr Wet Berries 70% System throughput rate : 1050 bbls/hr Wet Berries 70%, with a Dryer? System throughput rate : 1200 bbls/hr 3500 3000 2500 Berries (bbls) 2000 58% Wet Berries, 11am Start 70% Wet Berries, 11am Start 70% Wet Berries, 7am Start 1500 1000 70% Wet Berries, 7am Start, 1 Dryer 500 -8 8-9 9-10 10-11 11-12 12-13 13-14 14-15 15-16 16-17 17-18 18-19 19-20 20-21 21-22 22-23 23-00 00-1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 Time (24-hour) 0 Options No. Of Hours Trucks wait No. Of barrels waiting in the truck (bbls) 1 Truck Capacity (bbls) Total truck waiting time (hrs. ) Average Truck waiting time (minutes) % Change in waiting time Cost per hour/per truck/per day Harvest season truck waiting cost (106 days) % Change in peak-season Truck waiting costs 58% Wet Berries -11am Start 12 hours 16000 75 213. 34 53 – $ 100 2,260,980 – 70% Wet Berries -11am Start 15 hours 40600 75 541. 34 135 Reference level $ 100 $ 5,738,204 Reference level 70% Wet Berries -7am Start 7 hours 9500 75 127 32 -76. 3% $ 100 $ 1,346,200 -76. 5% 70% Wet Berries -7am Start, with 1 Dryer 0 hours 0 75 0 0 -100% 75 0 -100% 5000 4500 4000 3500 Berries (bbls) 3000 2500 2000 1500 1000 500 0 Start 11am- 70% Wet Berries Start 7am- 70% Wet Berries, 1 Dryer Start 7am- 70% Wet Berries Start 11am- 58% Wet Berries 7-8 8-9 9-10 10-11 11-12 12-13 13-14 14-15 15-16 16-17 17-18 18-19 19-20 0-21 21-22 22-23 23-00 00-1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 Time (24-hour) Savings: 70% Wet 11am Costs/ 70% Wet Berries, Berries, 11am Alternatives    7am Start, 2 shifts start v/s Start, 1 shift 7am start 70% Wet Berries, 7am Start with 1 dryer, 2 shifts Savings: 7am start with 1 Dryer over 7 am start with no dryer Equipment Truck Waiting Labour Total Costs $ 0 $57,38,204 $5,66,645. 71 $63,04,849. 7 1 $ 0 $13,46,200 $5,13,948. 57 $18,60,148. 57 77% 9% 70% $ 60,000. 00 $ 0 $4,99,229. 71 $5,59,229. 71 100% 3% 70% }Start Operations at 7am with 2 work-shifts Truck waiting time reduces to 32min on average and costs by 76. 5% Labour costs decrease by 9% } Invest in One Dryer Truck waiting goes down to zero and thus no truck waiting costs Labour costs reduce a further 3% †¢? Buy the Light Meter System Helps save $ 318,410 in the first season itself } Going forward, invest in increasing the capacity of the Drying system to 1200bbls/hr as proportion of wet berries increases. This will help avoid labour and truck waiting costs

Monsters and Mythical Creatures of Ancient Egypt