There is increase in the yield from our roof top vegetable garden. For the last few months I have been trying out methods to enhance the yield. Finally, it look...s like success. Now we are a getting a steady supply of green beans, bitter gourd, ladies finger, brinjal, tomato, chilly and curry leaves from our 25 feet x 30 feet terrace garden. Fertilizers have been all natural - cow dung, neem cake, vegetable and food waste. I have now started experimenting with cauliflower and cabbage. It will take a few attempts to get it right. This is turning out to be one of the high points of my retired life.