Dear Sri Hari,
Welcome to our Forum and all the best to you.
I give my suggestion, not to go for green house farming, as you are an employee and an abscent farmer. In green house farming, more investments incurs and also, plantings will be in high density and cost of the plants will be more. Since the farming is in close circuit, possibility of diseases and Insects will be more, if broke. The Greenhouse farming to be better with close supervision of the owner or a responsible manager.
I appreciate your interest and here I am informing the expendituresinvolved in construction of Greenhouse in one acre(4,000 sq mtrs ), (for Naturally Ventilated Greenhouse). Approximately Rs 26,00,000/- to rs 30,00,000/- is required for construction of Greenhouse in one acre and rs 1,00,000/- minimum to any amount , basing on the crop and plants cost. In your land of 30 cents, (1,200 sq mtrs area), hardly you can go for 15 cents covering area, ie; around 560 sq mtrs.
Think twice before investing on greenhouse and take opinions from few farmers also.
If you are having interest of Organic farming, better go for open cropping of Fruit plants and/or Vegetables farming, on pendal system, for which your presence , once or twice in a week is sufficient. On pendals, I suggest you to go for Dondakaya ( Thondekai ,in kannada ), for which crop, your visit of once in a week is sufficient and the crop will remain for around 4 years, once you plant.
cost of pendal in 30 cents will cost you around rs 50,000/- for pendal and rs 20,000/- for fertilisers, drip and planting material( approximately ) , provided you have a water source. More over your area is super for Dondakaya farming and very demand for Organic produce,from not only from hoteliers, also from families.
you can grow any fruit plants in Organic way of farming, even with your weekends attendance.
with best wishes, g.p.rao, farmer