Phytoremediation of pesticides- degration of pesticides

[Starfruit]

Hi!

The growth rate of radish plants isn't as interesting so I decided to do the graph on the change of pH. It is a line graph to show change over time and has a table attatched to it. For the distilled water experiment. I am just going to do the same thing. So you can compare. But all you will see is that the pH is constant (6).

Thanks for figuring that out for me. I couldn't have figured it out myself. It sounds so complex.

Thanks so much for helping me!
- Joanne

[Louise]

Hi!

The growth rate of radish plants isn't as interesting so I decided to do the graph on the change of pH. It is a line graph to show change over time and has a table attatched to it. For the distilled water experiment. I am just going to do the same thing. So you can compare. But all you will see is that the pH is constant (6).

Thanks for figuring that out for me. I couldn't have figured it out myself. It sounds so complex.

Thanks so much for helping me!
- Joanne

This sounds good. If you need help with figuring out the amounts of metals in the fertilizer, just let me know. It seems complex, but once you have chemistry, it is easy. I know you haven't covered these topics yet, so I don't mind doing the calculations.

Louise

[Starfruit]

Hi!

Yes please. It would be appreciated if you could help me figure out the mineral content in the fertilier. The total amount of fertilier in the bottle was 30 mL (1 fl oz.) The dilution rate is 5 mL for 37.8L. In each cup there is 230 mL of water. I also have to include the 0.39 g of epsom salt. I'm not sure if it is the weight of the minerals or the amount in the bottle. Thoufh it says: Total nitrogen 0.15% etc... . It also says 'Guaranteed analysis. If that helps at all.

thanks so much,
- Joanne

[Louise]

Hi!

Yes please. It would be appreciated if you could help me figure out the mineral content in the fertilier. The total amount of fertilier in the bottle was 30 mL (1 fl oz.) The dilution rate is 5 mL for 37.8L. In each cup there is 230 mL of water. I also have to include the 0.39 g of epsom salt. I'm not sure if it is the weight of the minerals or the amount in the bottle. Thoufh it says: Total nitrogen 0.15% etc... . It also says 'Guaranteed analysis. If that helps at all.

thanks so much,
- Joanne

Is there any way you could scan the label and email it to science buddies to mail to me? Otherwise, can you see if you can find a website for the brand that might have the label/contents info?

Louise

[Starfruit]

Hi!

I finished my science fair yesterday but I emailed you the label information. I could use that information for my class presentation which is next week. If you can do that, that would be great. If you don't have time, then you don't have to. If it isn't too much trouble for you. I scanned te whole label. I peeled it off the bottle.

The teachers said that my science fair project was very good and interesting.Thanks so much louise and all the other people that helped me! I understood this topic more deeply and I truly enjoyed this experiment and experience. I actually first saw this topic at the ontario science centre website.

Thanks again.
- Joanne

[Louise]

Hi!

I finished my science fair yesterday but I emailed you the label information. I could use that information for my class presentation which is next week. If you can do that, that would be great. If you don't have time, then you don't have to. If it isn't too much trouble for you. I scanned te whole label. I peeled it off the bottle.

The teachers said that my science fair project was very good and interesting.Thanks so much louise and all the other people that helped me! I understood this topic more deeply and I truly enjoyed this experiment and experience. I actually first saw this topic at the ontario science centre website.

Thanks again.
- Joanne

Glad you had fun. I got the label. It is very strange... I will try to figure out the metals for you. One thing I notices is that it is a 0.15-0-0 fertiliser, which means it lacks potassium and phosphorus, which are vital to plant growth. (the number should be Nitrogen-Phosphorous-Potassium). So now I wonder if these plants died because they did not get these two elements. Before, I thought they were getting too much metals, but maybe it was too little of these two nutrients.

Louise

[deleted-71447]

Hi!

I finished my science fair yesterday but I emailed you the label information. I could use that information for my class presentation which is next week. If you can do that, that would be great. If you don't have time, then you don't have to. If it isn't too much trouble for you. I scanned te whole label. I peeled it off the bottle.

The teachers said that my science fair project was very good and interesting.Thanks so much louise and all the other people that helped me! I understood this topic more deeply and I truly enjoyed this experiment and experience. I actually first saw this topic at the ontario science centre website.

Thanks again.
- Joanne

Congrats! I'm glad your teacher approved of your project, and I'm sure your class presentation will go just as well.

[Starfruit]

Hi!

well yes I thought it was odd too that it was 0.15-0-0. I wonder why they would use that solution for the aquatic fertiliser. Do the aquatic plants not need potassium and phosphorus? That Nitrogen-Phosphorous-Potassium was confusing for me. I couldn't figure out what it was. I thoght that was just a bunch of numbers. Yeah maybe they lacked the twp nutrients. When I checked a hydroponics book, I noticed that the signs the plants showed, indicate to a lack of potassium and phosphorus. THe purple spots on the stem.

Thanks anyway for you help!
- Joanne

[Starfruit]

Oh and thanks so much. I did have alot fun . I hope so that I'll do well in the class presentation. The teacher is looking for understanding.
Thanks for the encouragement.
- Joanne

[Louise]

Hi!

well yes I thought it was odd too that it was 0.15-0-0. I wonder why they would use that solution for the aquatic fertiliser. Do the aquatic plants not need potassium and phosphorus? That Nitrogen-Phosphorous-Potassium was confusing for me. I couldn't figure out what it was. I thoght that was just a bunch of numbers. Yeah maybe they lacked the twp nutrients. When I checked a hydroponics book, I noticed that the signs the plants showed, indicate to a lack of potassium and phosphorus. THe purple spots on the stem.

Thanks anyway for you help!
- Joanne

I don't know anything about aquatic plants. It is cool that the purple spots seem to be related to the known mineral defficieny. I think it is great that you found an explanation for these signs!

Louise

[deleted-71588]

Try here http://faq.thekrib.com/plant-qa.html#nutrients for a good reference on acquarium plant issues and click on neutrients and fertilizer to get to the relavent section.

I'm just guessing here, but the "aquatic fertilizer" you purchased was probably formulated for fish tanks where the phosphorus and potassium have to be carefully balanced for the fish and plants. Fish food typically provides the incremental P and K needed but the fish may not excrete enough nitrogen for the aquatic plants.

You've run into a similar neutrient imbalance problem that many lawn fertilizers like 29-3-4 can cause. The huge amount of nitrogen will cause the grass to grow like crazy but it won't necessarily be heathy. 29-3-4 usually makes for a poor garden. 10-10-10 usually makes for a better garden, but the only way to know is soil analysis.

[Starfruit]

Hi!

Thanks alot. That's very funny because the lady that sold me that said they used it for the bamboo. It was a gardening and aquarium shop. But the problem was that my plants aren't aquatinc and I'm not letting any fish swim with the plants.

Yes that might be it. Poor nutrition balance. That's cool that fish have the nutrients. The webpage was interesting.

At least i have an explanation adn better yet, I did two experiments. I just need to explain why the first didn't work out. A.K.A with the distilled water.

[Louise]

Hi!

Thanks alot. That's very funny because the lady that sold me that said they used it for the bamboo. It was a gardening and aquarium shop. But the problem was that my plants aren't aquatinc and I'm not letting any fish swim with the plants.

Yes that might be it. Poor nutrition balance. That's cool that fish have the nutrients. The webpage was interesting.

At least i have an explanation adn better yet, I did two experiments. I just need to explain why the first didn't work out. A.K.A with the distilled water.

Sorry for the delay. I was being very stupid and couldn't figure out the label. It is actually really easy. All the numbers are in mass percents. Then they tell you that when diuted properly (to 38.7 L) the concentration of iron is 0.3 mg/L. Look at the mass percent of iron-0.26%. This rounds to 0.3. So, you can convert all the mass percents to mg/L directly.

That is: nitrogen is 0.15 g/mL, Mo is 0.0007 mg/L, etc. Then, from my other post, the addition of epsom salt leads to Mg 50 mg/L for that. Now you can compare with the water quality table.

Again, I think the critical factor is the lack of phosporous, as you diagnosed with you plant book. Still, it is probably interesting to say something about how much more nutrients are added by fertiliser versus tap water.

Good luck with the class presentation.

If you wanted to, I think you could expand on this project for next year's science fair, using what you've learned about hydroponics.


Louise

[Starfruit]

Hi!

Thank you so much for helping me on my project. Science fair is not that hard afterall when you break it down. Thanks to everyone who helped me understand this topic better. And thanks to Louise for figuring out the label for me. Yes, it was interesting the amount of neutrients added by the fertiliser.

This was a wonderful experience considering this was my first time growing plants hydroponically. What was funny was that the guy who worked at home hardware didn't know what I was talking about. I realized that last year I though you spelled hydroponics like -> hydrophonics.

I can't thank all of you who helped me enough. Thanks, and I hope I do well in the presentation too. Our science teacher will tell us our marks after the presentation.

Thanks so much everyone,
- Joanne

[Starfruit]

Hello!

I haven't replyed in so long and it seems weird now. But I just wanted to report back on what I got. my science teacher was really impressed and gave me 25+ out of 25. That was after my presentations. I can't believe I managed to pull this project off with the help of all the magnificent experts at science buddies. So thanks again to all the people that helped me. I enjoyed this project alot and had so much fun. I can't thank all of you enough. You don't need to reply. I just wanted to tell you that and report back after all your help.They should make more of these forums, they are so helpful for students. Too bad I didn't discover it last year.
After one science fair is done, there are always many more to help. You guys work so hard and are always so fast to reply (sometimes in an hour).
I have one last question: Do you get any post during the summer? Since there is no school or competitions (I think).

Thanks for all the help!
- Joanne

[deleted-2131]

Starfruit,

Congratulations on your outstanding performance. Yes, the ScienceBuddies forums are open during the summer. However, fewer experts monitor the boards, so it may take a bit longer to get a response.

Once again, congratulations!

[Louise]

Hello!

I haven't replyed in so long and it seems weird now. But I just wanted to report back on what I got. my science teacher was really impressed and gave me 25+ out of 25. That was after my presentations. I can't believe I managed to pull this project off with the help of all the magnificent experts at science buddies. So thanks again to all the people that helped me. I enjoyed this project alot and had so much fun. I can't thank all of you enough. You don't need to reply. I just wanted to tell you that and report back after all your help.They should make more of these forums, they are so helpful for students. Too bad I didn't discover it last year.
After one science fair is done, there are always many more to help. You guys work so hard and are always so fast to reply (sometimes in an hour).
I have one last question: Do you get any post during the summer? Since there is no school or competitions (I think).

Thanks for all the help!
- Joanne

Congrats on the score! That is very impressive!

There are people checking during the summer, as Terik said. Some students do start their experiments very early or run them for a longer time!


Louise