How many sunline each vegetable plant require per day and in which season which vegetables plant should grow?

Can I use the soil from the farm or near my locality where there r tress growing around or where there is grass Or I hv no choice but to buy the garden soil or the vermicompost and cow dung compost.

Can anyone recommend any air pumps and water pumps for the aquaponics? Thanks heaps from india

Does aquaponics allow for a more distributed food production system and thus greater food security?

Can i reuse the soil when plants are harvested, like carrots, radishes or cabbage? or do i have to throw it and use new soil for new plants?

How to plant cabbages during the Summer months as well, or wait for cooler weather.?

I want 0.5 lph dripper. How I can purchase. Whether it is available in India

Wanted to know which method is best if i want to use least amount water and resources? can boom in the coming years?

How long does rhubarb last before it actually dies off? as in, how many times can it keep coming back after winter? Also how long does it take to flower?

I am looking to purchase best of the water level sensor which is good for human health without any salts provided. I have heard electricity can cause salts in water and does not good for us.