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vkn

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vkn last won the day on September 4 2018

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About vkn

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    Senior Member
  • Birthday 10/23/1969

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  • Website URL
    www.nardc.in

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  • Biography
    We focus on replicating right aquaponics organic farming in scale!
  • Interests
    Commercial Aquaponics

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  • Location
    Nanniode, India

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  1. Each one of us will do things a bit differently than other people. Prevention is always better/easier than cure. In addition to what is discussed, quick changes in temperature during transfer could be another reason for these fish kills. I now suspect parasitic infection that spreads fast but I could be wrong. Stressed fish are more susceptible to parasites. Improper transportation and/or unhygienic handling at nursery may at times lead to 100% mortalities. For parasitic infections, there are several chemicals that are applied by aquaculturists by bath, such as salt, formalin, H2O2 and KMnO4. If possible, first see if you can get the fish tested at a lab.
  2. It’s all good advice above and it's all true in a fish-focused aquacultural systems. However, I wouldn't do salt bath during start-up phase for several important reasons nor I would suggest water changes while your system maturation. The secret is in the microbes. We are working with a living system that regulates by itself. Microbes evolve along with the plants they sustain/interact with, meaning they too benefit from chemical levels, pH, temperature and other conditions to keep its life going. I would have started with small fish numbers or much smaller healthy fish for starters. Your starter fish looks much bigger to me. What about your plants?
  3. Hi Tam, Fish kills are a tragedy.. seen similar fish deaths in many new systems. Do not necessarily mean it is due to SiO2.. it could be the weak and stressed ones dying out. What temperature are you at? Do you have more turbidity due to the Silica dust? If it is not a lot, once essential microbes are established, the fish deaths rarely happen. What have you done to jump start the nitrification process?
  4. The youth are the future of a food-secure world. Yet around the world, few young people see a future for themselves in agriculture or rural areas. Urban and rural youth face many hurdles in trying to earn a sustainable livelihood. Attracting and retaining youth in agriculture has been a key challenge for several decades. I can now confidently assert that aquaponics sand culture (iAVs) is a concrete solution to these issues by both rural and urban adoptions. I was with these young people now taking care of the TNJFU Aquaponics Research Complex, Madavaram, Chennai. They are into doing several things under the excellent direct leadership of the VC of TNJFU and the guidance of the Dean and Professors of Dr. MGR Fisheries College & Research Institute, Ponneri; adding the second batch of fish next week, new plants coming up nicely, battling some pest issues, and most importantly gathering so much data from their direct field experience. Data + Aquaponics - what a novel concept! Hope Mark would say WOW again..
  5. We are nearing the climax of papaya yield trials in aquaponics sand culture.. here is a picture for you.
  6. With Koi Carps 2000 fingerlings, ISKCON Aquaponics and CSAF Madurai had gone live the day before yesterday. This is the first time we are trialing Koi Carps in aquaponics sand culture considering/selecting this fish primarily from a horticulture perspective based on ISKCON beliefs. To know more about what ISKCON does, their beliefs, world-wide presence, etc. here is a link. http://www.iskcon.org/ However, we have got a buy-back offer in staggered harvest from its supplier for distribution to aquarium/ornamental retail fish industry. This is only a prototype. If all goes well, we would soon be witnessing one of the largest commercial installations in several acres scale (between 100 and 1000 acres) in Madurai, Tamilnadu. Wish us luck!
  7. Sugarcane as teatime snacks.. Grown in aquaponics sand culture for kids, they are more sugary and tasty!
  8. For the pacu lovers.. Here is an image of the red-bellied pacu (nutter) seedlings that were added today at SVVU Aquaponics, Fisheries Research Station, Sree Venkateswara Veterinary University, Undi, Andhrapradesh, India.
  9. We were playing with sand again at ISKCON Aquaponics today! This is a prototype open-field partial rain-shelter protected structure build in about 200 m2 for hopefully a much larger commercial aquaponics enterprise in multiple acreage scale by NARDC's CSAF Madurai - Avyukta Aquaponics. Fish planned - Koi Carp Plants in yield trials - Coriander (Cilantro), Mint, Cucumbers, Tomatoes, Chillies, Brinjal, Snakegourd, Bittergourd, Ash gourd, Pumpkin, Paneer Rose, Marikolundhu (artemisia pallens), etc. Techniques in yield comparison trials - sand culture flood/drain, sand culture constant flow, sand bucket culture, cucumber mats, vining crops in A-frame; semi-decoupled raft culture, nutrient flow culture in A-frame and vertical frame, etc. A go-live event by ISKCON is planned on October 19, 2018. More later. Questions welcome!
  10. Another aquaponics peeragogy meeting with the fisheries scientists, professors Suguna and Veerabadra Rao, at SVVU-FRS, Undi, AP.. Commercial scale planting of tomatoes, cucumbers, spinach, okra, and a local variety of chakkarakeli bananas are in their first crop that began today. More later.
  11. New product we are now distributing..Heirloom Clove Beans Seeds. Scientific name: Ipomoea Muricata Common names: Nitya Vazhuthana (നിത്യവഴുതന), Kattuthali (Tamil), Mitchi (Hindi and Bengali), Garyo (Gujarati), Gariya (Marathi), etc. These heirloom clove beans facing almost extinction are being raised in our aquaponics sand culture nursery facility that are naturally decontaminated and controlled for diseases. This gives you a good healthy plant to start with. This is very important. It is a very easy-to-grow vining plant and can be grown throughout the year. The tender and swollen pedicel of the fruit is used as a delicious vegetable. The edible fruits are prepared into tasty curries just as brinjal, okra, or coccinia (little gourd). Leaves are used in natural pest control. It is replicated using seeds. FYI..
  12. Good leadership is about capacity building. That's what TNJFU is focusing on. A good leader is not someone who gives you the fish - he is the one who teaches you how to fish. Current agriculture technologies fail to consider the underlying problems which are destroying agriculture. NARDC has the knowledge to implement and replicate Aquaponics organic farming movement combining the RAS (recirculating aquaculture systems) and organic olericulture on scale. That's what we are happily working with TNJFU. As we complete phase 1 works today at TNJFU-ICAR-KVK Aquaponics demonstration facility at Sikkal, Nagapattinam, here is a picture for you. More later.
  13. Working with CSAF Madurai in producing tonnes of mint leaves per day.. It has given a new dimension to us growing in commercial aquaponics sand culture in acreage scale, hopefully in several acres of mint/coriander production. What do you think are the challenges ahead? Any large scale mint growers? Pictured is high quality fresh-cut mint for today's breakfast at Nanniode. 10 days mint yield data in aquaponics sand culture.. 152 grams per square feet at 8-9 inches. Expecting 300+ grams per square feet at about 12-16 inches long in 20 days. Is this good or bad? Currently looking out to compare this data with other organic growing techniques including soil culture. Can anyone point me to a study?
  14. "The fruit of your own hard work is the sweetest." - Deepika Padukone - The fruits from this papaya tree is almost there.. This is from our aquaponics sand culture yield and optimization trials at NARDC. No need for any fancy plumbing or filtration gimmicks. Your satisfaction will come only from the doing and not in the telling.
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