Dear Sri Gokul.s.vir,
In A.P, Tamilnadu, Pondichery states, In paddy fields, farmers are growing Coconut plants, as a mixed crop in paddy fields, with little modification.
some farmers converting 1/3 rd of the land as fish pond by digging the soil and keeping it in another 1/3 rd land in which they grow coconut and rest 1/3 rd land they are growing paddy.
some farmers, in theirtheir paddy fields, at intervals of 30 ft x 30 ft, they keep 4 ft height x 6 ft w x 6 ft w heaps by digging the soil. On the heaps, they are planting coconut plants and growing, and in the rest of the field they are growing paddy.
some farmers make a bund all around their paddy fields to a height of 4 ft above, and to a width of 6 ft above, and planting coconut plants on the bunds.
All the above are doing well and farmers are gaining. In the paddy fields, we can not grow coconut plants with out raising soil heaps or bunds, at least to a height of 4 ft and above.
with best wishes, g.p.rao, farmer