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Nutrient solutions Recipe for General Vegetative, Flowering & Fruiting
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geekgardener
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October 1, 2011 - 10:11 pm
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Hi Praveen,

There are couple of issues I see here.
1. When you are starting out, it is good to have your measurements in grams. Once you are regularly making, you will know how many teaspoons of salt you need to add.
So, a teaspoon of "grow" can mean many things... Ask the supplier for details such as how many grams per litre.

2. Fertilizers like this must mention the % of NPK they have if not the exact PPM values.

Also, TDS is the total dissolved salts. Elements in a nutrient solution must be present in a specific ration to steer the plant vegetative or generative(fruiting).

When you said, the tomato is not growing.. is it not yielding or it is not growing at all?

Your well water seems totally fit for hydroponics.

I kinda have an idea from where you got the nutrients from... 😉 I am saving it to myself..

GG

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sanjayksen
Mumbai, Goregaon West
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April 23, 2012 - 3:17 pm
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Hi Srikanth,

First of all I am very new to this "Hydroponics" and going through your one of very old post (9:55 am November 5, 2010). 

I am interested in Hydroponics and want to start as soon as possible. But main problem is finding the ready made nutrient in the market. I am from Goregaon West area in Mumbai. Can you please refer to any person/ supplier in Mumbai from where I can get information for nutrient solution/information etc. and start hydroponic growing?

Thanking you and waiting for your reply!

Regards,

Sanjay Kr. Sen.

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Srikanth
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April 23, 2012 - 4:12 pm
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Hi Sanjay,

 

A word of advice. Do not post your email id if you want to avoid spam.

 

I am not aware of any source of ready to use Nutrient solutions anywhere in India. Being in liquid form it is difficult to transport. Your best bet would be importing from US but that will be way too expensive. If you want you can use the first post of this thread as a general guideline to prepare your own NS recipes. GG and I can guide you if you need help when time permits.

 

Most of the stuff can be obtained from regular agricultural stores. You might have problem sourcing Sodium molybdate and Fe EDTA. These you can get from scientific shops such as those that sell laboratory reagents used in school chemistry labs. If you want to buy in bulk (25 bags) Yash Chemicals in Pune is a good source (www.yashchemicals.net).

 

What exactly are you planning to grow hydroponically? Name them. How big is your garden going to be? What system have you decided upon (NFT, DWC ...)?

 

Most important advice I can give you is to read as much as you can about Hydroponics. There are many good forums that deal with this specific subject though this site is the best for things related to in the Indian context. The next best advice is to ask you to read the sowing chart on this forum.

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Srikanth

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sanjayksen
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April 24, 2012 - 8:36 am
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Hi Srikanth!

Thanks a lot for your speedy reply and suggestion. Yes u r right. For the last three months I am trying to read as much as possible from internet, different ways of “Hydroponic” system from different parts of the world.

I have your general purpose “basic recipe for preparation of Hydroponics Nutrient Solutions”. I am sure that in the coming days I can follow this. But for a newcomer it will be very difficult to collect all the ingredients and measuring (in grams and milligrams etc.) them properly. That is the basic problem I am facing as all the supplier I met even have not heard of “Hydroponics” or “hydroponic nutrient solutions”.

I think you have gone through the “SNAP” —an acronym for Simple Nutrient Addition Program, the latest hydroponics system developed at the University of the Philippines at Los Banos’ (UPLB) Institute of Plant Breeding (IPB).

Though this is not the perfect full proof system, but I think for the beginners and Indian context, where “Cost” is one of the main factors and any common person with “basic plant growing knowledge” can follow this method. But again the basic simple hurdle is “preparing the nutrient solution”.

This may cause some delay to start my “hydroponic” garden, but I am sure to overcome this simple hurdle soon.

Thank you again for all the suggestions. Meanwhile, in the future, if you have any information of person/supplier having practical knowledge of hydroponic growing/nutrients in Maharashtra, please let me know.

Regards.

Sanjay Kr. Sen.

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bali4u
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December 15, 2012 - 10:26 pm

Srikanth said:

Hello All,

 

Wish you all a happy Deepavali.

 

Please find below a basic recipe for preparation of Hydropnics Nutrient Solutions for various stages of plant growth (Vegetative, Flowering & Fruiting). This is a general purpose recipe.

To Make
 

100 Liters of Nutrient Solution

             
               
Salt Weight in Grams
 

 

Vegetative Nutrient (9.5 : 5.7 : 11.3)

 

  Weight in Grams
 

 

Flowering Nutrient (5.5 :  8 : 18.4)

 

  Weight in Grams
 

 

Fruiting Nutrient (8.2 : 5.9 : 13.6)

 

  Soln A/B
Calcium Nitrate – Ca(No3)2 158.73   108.47   211.64   A
Potassium Nitrate – KNO3 55.29   74.07   74.07   A
Sulphate of Potash – K2SO4 12.17   12.17   44.97   B
Monopatassium Phosphate – KH2PO4 36.77   36.77   36.77   B
Magnesium Sulphate – MgSO4 * 7H2O 64.02   63.49   63.49   B
Trace Mix  10 ml   10 ml   10 ml   B
Chelated Iron 100 ml   100 ml   100 ml   A
               
Trace Mix for 1 L Concentrated
 

Solution

Weight in Grams            
Zinc Sulphate (ZnSO4) 2.20            
Manganese Sulphate (MnSO4) 15.4            
Copper Sulphate (CuSO4) 0.8            
Boric Acid (H3BO3) 28.60            
Sodium Molybdate (Na2MoO4) 0.25            
               
Iron Concentrate Solution for
 

1 L

Weight in Grams            
Chelated Iron (FeEDTA) 19.48            

 

How to Prepare the solution.

Iron Chelate Solution – Take 1 Litre bottle and add the Chelated Iron to 500 ml of water and dissolve it. Once dissolved top up the bottle to 1 L capacity

Trace Mix Solution – Take 1 Litre bottle and fill it with 500 ml of water. Add each of the trace element salts individually and dissolve one by one. Ensure that you add the next salt only after the previous salt it completely dissolved. After all trace elements are dissolved top up the bottle with water to 1 L capacity

 

Take two 5L cans and label them as Solution A and Solution B.

 

Solution A

1) Take a 5 L can and label it as Solution A

2) Fill about 4 liters of water in the can

3) Add Calcium Nitrate and dissolve it completely

4) Add Potassium Nitrate dissolve it completely

5) Add 100 ml of the Iron Chelate solution

6) Top up the can with water to make it 5 L in capacity

 

Solution B

1) Take a 5 L can and label it as Solution B

2) Fill about 4 liters of water in the can

3) Add each of the salts and dissolve in the can one by one. Ensure that the next salt is added only after the previous salt is completely dissolved.

4) Add 10 ml of the trace mix

5) Top up the can with water to it 5 L in capacity

 

Now you have two 5 L cans of Solution A and Solution B. This is good for making 100 L of the Nutrient Solution. In case you need to make 10 L of the solution fill the reservoir tank with 5 L of water and then add 500 ml of Solution A and mix it thoroughly. Next add 500 ml of Solution B and mix it thorughly. Now fill up the reservoir to the 10 L capacity.

 

A note about Water Quality and pH.

Water Quality – It is very important that the quality of water is good. Softened bore water is a big no no for Hydroponics due to the addition of NaCl during the ion exchange process. Ideally you should be using RO water or Rain water. In case you have to use municipal water let it sit for a day to get rid of the chlorine but I doubt how good the water our municipalities supply. In a later post I will give more information on creating your own recipes based on PPM and taking water quality into consideration.

pH – It is important to maintain the correct pH. You would need a pH meter to check for pH. So far I never had a need to decrease the pH (acidify) of the solution when using RO water. You can use Cooking Soda for increasing the pH while vinegar or citric acid or diluted Sulphuric acid (battery acid) for decreasing the pH.

 

Disclaimer/Credits: The NKP part of the receipe has been adopted mainly from Keith Roberto's wonderful book - 'How to Hydroponics'. The Trace elements part is gathered / culled from the many good people at the hyrdo forum on GardenWeb and the sample recipe by Daniel Fernandez's Hydroponic Buddy Calculator. If this is in violation of any copyrights please feel free to report this post to the admin to have this post deleted.

 

I hope this is useful.

 

Thanks,

Srikanth

Hello Srikanth,

                   I have purchased all these macro and micro chemicals instead of chelated  Iron from Laboratory Chemicals Shop. After reading other articles about hydroponic nutrition I got confused that these chemicals are suitable for hydroponic nutrient or not. Fertilizer grade chemicals are cheaper then laboratory chemicals. but i buy from laboratory chemicals shop, at the cost approx 3000/- . what should I do please tell me.    

But I am confused that

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Srikanth
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December 17, 2012 - 1:35 pm
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The basic difference between lab chemicals and fertilizer grade is the purity. Generally lab grade is 99.99% pure while fertilizer grade is around 90% to 99% pure. You can adjust the weights according to the purity for macro nutrients. For micro nutrients however, I suggest you go for the lab grade if it is not too expensive. You do not need huge quantities anyway as far micro nutrients are concerned.

 

Iron has to be given in chelated form only. Otherwise it cannot be absorbed by the plants. If you cannot get chelated iron then try foliar application.

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bali4u
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January 6, 2013 - 8:41 pm

Hi GG,

     I am started hydroponic tomato growing with this nutrient recipe. I was started in two liters jar with one month older tomato plant. I had changed water 2 times in last 15 days. I faced problem that pH level goes higher regularly after 3-4 days. To down the pH level I was added vinegar but I added in morning, the pH goes down to 5.5 and in evening this goes upto 6.5.

   Now I changed the solution in 6 leters jar today with fresh water. My tab water ppm is 160 and pH level is 7.5. Add Solution A and B with 200:200ml and ready solution's ppm is 1000.

   Can you solve this problem and give me right suggestion.

Thanks

Mohan Goswami

Haridwar   

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Srikanth
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January 8, 2013 - 12:32 pm
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Hi Mohan,

 

What is it that you are growing? Most plants such as Tomatoes grow well in the pH range of 5.5 to 6.5. Please do not be too stuck up with the achieving the exact pH. At various levels of pH the ability of the plant to absorb certain nutrients vary. I would suggest that you bring down the pH to 5 that way it will stay b/w 5 to 7 for a week or so.

You need to keep experimenting. You can also try citric acid.

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sharans
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March 23, 2013 - 3:08 pm
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Hi Srikant! 

I am a first time hydroponic gardener from Pune. I have been doing a lot of reading on the method and I found your blogsite superb! Thank you for sharing your information with newbies like myself. 

I am going to start using a very basic ebb and flow system. I have a few questions that I was hoping you would help me out with. I have acquired most of the fertilizer grade nutrients required for the recipe above. I have not been able to acquire chelated Iron and sodium molybdate. 

 

1. Can I use ferrous sulphate instead of chelated iron? If yes, in what quantity (I have fertilizer grade ferrous sulphate). Mainly, is ferrous sulphate water soluble enough to be absorbed by plants in a hydroponic setup? (The bag I have says it is for field purposes)

2. Is there a substitute I can use for sodium molybdate?

3. I have an ebb and flow system with a reservoir at the bottom and a small pump to pump solution up and into the plants. My pump is connected to timer that can be timed such that the pump turns on at regular intervals. The excess solution then drips through the grow medium (cocopeat and gravel) and back into the reservoir. If I have to water the plants this way, then how often should I set up my timer so that it pumps sufficient nutrient solution? For eg: should it be programmed to pump up water for 15 minutes each hour or is there any other particular amount? 

4. Lastly, I have been finding it near to impossible to fin netted pots. What is the harm if I get a wider netted tub (of sorts) and plant 4-5 plants in it rather than use separate netted pots?

My questions may sound silly, but its very difficult to get a strong foundation on this with so many different opinions available online.

Once again, I congratulate you on this site. Thanks for your help!

Sharan  

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Srikanth
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March 23, 2013 - 9:28 pm
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Please see below for my responses.

sharans said:

Hi Srikant! 

 
1. Can I use ferrous sulphate instead of chelated iron? If yes, in what quantity (I have fertilizer grade ferrous sulphate). Mainly, is ferrous sulphate water soluble enough to be absorbed by plants in a hydroponic setup? (The bag I have says it is for field purposes)

No. solubility is not the problem. Availability of the soluble iron is important. Hence it has to be Chelated.

2. Is there a substitute I can use for sodium molybdate?

Yes. Ammonium Molybdate. You cannot get away without molybdenum. You can get both Sodium Molybdate and the Chelated Iron in stores that sell Lab reagents used in Schools and Colleges chemistry labs.

3. I have an ebb and flow system with a reservoir at the bottom and a small pump to pump solution up and into the plants. My pump is connected to timer that can be timed such that the pump turns on at regular intervals. The excess solution then drips through the grow medium (cocopeat and gravel) and back into the reservoir. If I have to water the plants this way, then how often should I set up my timer so that it pumps sufficient nutrient solution? For eg: should it be programmed to pump up water for 15 minutes each hour or is there any other particular amount?
You would have to experiment and figure that out. It depends on how long does the water take to flow out of the system back into the reservoir. I wouldn't give more than 10 minutes gap between the off and on.

4. Lastly, I have been finding it near to impossible to fin netted pots. What is the harm if I get a wider netted tub (of sorts) and plant 4-5 plants in it rather than use separate netted pots?

No problem. You just need to ensure that there are enough holes to let the roots get out of the container. An ideal replacement would be the Plastic Beer Glasses that are around 5 inches high. You can use a soldering iron and poke holes quickly.

My questions may sound silly, but its very difficult to get a strong foundation on this with so many different opinions available online.

Once again, I congratulate you on this site. Thanks for your help!

The credit should go to GG for setting up the site.

Sharan  

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sharans
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March 24, 2013 - 5:15 pm
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Hi Srikanth! 

 

Thanks for the response - really appreciate it. 

I went into the market today and was able to procure some RexolineCXK -II

It contains: 

Nutrient Chelating Agent Typical* % Minimum %
Boron Inorganic 1.5 1.2
Copper (Cu) EDTA 0.5 0.4
Iron (Fe) EDTA 3.4 3.0
Magnesium (Mg) Inorganic 1.2 0.96
Maganese (Mn) EDTA  3.2 2.8
Molybdenu (Mo) EDTA  0.05 0.04
Zinc (Zn) EDTA  4.2 3.8

Contains approx. 10.0% Potassium (K) (12.0% as K2O)
Solubility in water approx. 800 g/l (20 °C), 1,200 g/l (80 °C)

1. Do you think I could use it to provide the necessary Iron and Molybdenum content? 

2. If not for the iron content, can I use it for its molybdenum content only? In this case how would it affect the amounts of the other chemicals I will be putting in? Should I reduce the amounts? 

Three cheers to GG for the site.

Sharan 

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samee
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July 31, 2013 - 4:49 am

please let me know how to create Nutrient solution for tomato plants.

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Srikanth
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You can use the formula in the first post for tomatoes.

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ttumitt
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April 24, 2014 - 4:11 pm
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hello
what foods should we use for bulb flowers? (saffron, tulips, daffodils, hyacinths)

Thank you for your help.

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scyther
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April 25, 2014 - 2:11 am
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Hey Srikanth,

I am also a newbie here, and you clearly seem to know your stuff, i got introduced to hydroponics through the window farm . org website and am really interested in persueing it,

My only problem nutrients, I can get the system figured out but chemistry is sort of beyond me, is there a way i can get these solutions ready made anywhere around hyderabad ? is that feasible in terms of cost ? also whats my best bet to obtain these chemicals in hyderabad ? ( i am dedicating this questions to you as i see you're a fellow hydi :-p )

Once again thank you for your contribution here
Cheers
Arjun

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Srikanth
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April 25, 2014 - 8:57 am
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Hi Arjun,

Hydroponics isn't all that difficult as it might seem. All you need is some patience (as with all types of gardening) and some basic math skills.

You can get most of the nutrients/salts in Hyderguda (Srikanth Reddy Fertilizers & Pesticides). As for some of the chelated micro nutrients your best bet is Ramkote.

I do not think you will get ready made stuff in Hyd. If you are dead serious about hydroponcs I can make some nutrient solutions for you (and probably show you how to make them yourself) one of these days. I am really hard pressed for time these days due to other agri ventures.

Good Luck.
Srikanth

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G S Khobrekar
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May 5, 2014 - 6:00 pm
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Hi,
I am new entrant to this site. I have been regularly reading it for the past several months. Your site inspired me read about soilless farming extensively. In fact i picked up hydroponic general recipe from this site. After reading extensively about both hydroponics and aeroponics, i decided to try my luck with an aeroponic tower. I fabricated one recently. It is working well, barring a few leakages. I planted a sampling of cucumber on trial basis. It is growing really well. I have other samplings ready to transplant. Your recipe was very useful. I diluted it to 200 ppm for tender saplings and it worked well with my trial run.

The only problem i am facing is that everyday there is tremendous rise in PH of the nutrient solution. I have been adding water to make up for the evaporation loss, that may have contributed to it. I have therefore prepared about 100 liters of the nutrient solution of desired PPM level and decided to make up with the loss of water.

Will it help or can you suggest something to get over the problem?
Does hydroponic recipe work with aeroponic tower?

I am from Navi Mumbai and lucky to have about 2000 sq ft terrace. I would be very grateful for your advice.
Regards
G S Khobrekar

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Srikanth
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May 6, 2014 - 12:09 pm
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Hi,

Nice to hear that your setup is working well. Please post images of it on picassa or other image hosting sites and share the link for others to take inspiration from. These nutrient recipes should work for aeroponics as well. Controlling pH is the biggest challenge we face. Try to find the the pH range that your plants tolerate. If your problem is the pH is going too low then you need to increase the pH and vice versa. To increase the pH you can you cooking soda in small quantities. To bring down the pH you can you either add citric acid or Phosphoric acid (preferred but then it has to be of good quality to avoid introducing impurities).

Citric Acid and cooking soda only help you manage the pH for a day or two. There are commercial pH buffer solutions that are available but they are expensive and I not sure if they are available in India.

-Srikanth

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G S Khobrekar
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May 9, 2014 - 10:58 am
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Srikanth said

Hi,

Nice to hear that your setup is working well. Please post images of it on picassa or other image hosting sites and share the link for others to take inspiration from. These nutrient recipes should work for aeroponics as well. Controlling pH is the biggest challenge we face. Try to find the the pH range that your plants tolerate. If your problem is the pH is going too low then you need to increase the pH and vice versa. To increase the pH you can you cooking soda in small quantities. To bring down the pH you can you either add citric acid or Phosphoric acid (preferred but then it has to be of good quality to avoid introducing impurities).

Citric Acid and cooking soda only help you manage the pH for a day or two. There are commercial pH buffer solutions that are available but they are expensive and I not sure if they are available in India.

-Srikanth

Hello Shrikanth,
Thanks for your advice. I have been using 0.1 N suphuric acid for reduction of PH. I will try phosphoric acid this time.
Here is a link to some of the photographs of the tower.
https://plus.google.com/photos/105520275774973466679/albums/6011286470933353985?authkey=CIi5sqOqvavdTA
One thing that helped controlling PH is that i started adding dilute nutrient solution to make up for the evaporation and spillage loss instead of plain water.
Thanks again
Regards
G S Khobrekar

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Pramod
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July 23, 2014 - 2:41 pm
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Hi GG / Srikanth,

I'm practicing hydroponics for the past 6 months. I use the cocopeat as medium. I've made my own nutrient solution after getting all the chemicals. I've made different solutions for vegetation, flowering and fruiting stages. And the plants are growing wonderfully well as compared to soil medium till the flowering stage. Then, the problem starts for me.

During fruiting, I'm finding that the vegetables don't grow big in size and even the quantity is less. Can you please let me know what could be the possible reason for this? I've faced this with tomato, water melon, green chillies plant. FYI...I was using the same nutrient solution for all the plants.

I've another query. Can we use the same nutrient solution for all types of plants? If not, how do we manage to maintain the nutrient concentrates for different types as I feel there would be lot of containers to maintain?

- Pramod

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