Dear Sri Guru, When you have 1500 plants, in general, you will get around 400 to 500 kgs of riped papaya fruits for every 3 to 4 days. It is not practicable to get 1 to 1.5 tons riped fruits in one harvest.
Papaya, is a fruit, which should be riped on plant on its own. If cut in unriped stage, the papaya will never ripe after cutting from plant. If yellow spot/strip is found only, the papaya should be cut.
It is not good to give growth hormones/steroids to plants to get forceble ripening and not economical too.
Pl try for local small markets/ryot bazaars for good markets.
best of luck and hope you will get good market for your produce. g.p.rao, farmer