Sir,
This is all depends upon the total investment (in one time or in different intervals within one year) If the investment is big, you can purchase more land for more profit. If you are planing commercial farming, you have to purchase more land (30 to 50 + acres ) for unlimited period, which will benefit for next generations. Commercial farming is just like a manufacturing factory which will not provide dividend for first two years and slowly improving their market share and makes profits forever. This system will benefit your family forever for next 3 or 10 generations. Because your productions are essential commodity for human consumer forever up to end of the world.
According to the above status, I had prepared a masterplan and finance budget for Organic farming with ZBNF system. This is 7 lair plantation with 7 different crops which will provide 7 different products in 7 different periods in a year. If one or two products are under-valued in open market, you can compensate with other products.
I am from Kerala and watching the organic farming sector since last 17 years. All my products have buyers whom they will sign an agreement for 100% buy-back for lang terms. before the planting time.
If you are serious, kindly send your profile to get more details