Papaya plants absolutely need to be fertilized; fertilization will ensure good growth and fruit production.
Even when the plant is 0 – 4 months old, it is a critical period for the plant.
This means that if the 0 – 4-month-old plant does not receive proper fertilizing treatment, then most of the next plant growth cannot be repaired, even though after that, the plant is given excessive fertilizer.
High and low fertilization will determine the high and low production or profits to be obtained.
Only a few doses of fertilizer should be applied depending on the soil’s fertility, the plant’s age, and the fruit’s economics.
In Queensland, a papaya growing area in Australia and Hawaiian islands in the Pacific Ocean (producing papaya fruit for mainland America and Japan), this plant is fertilized quite high.
In Queensland, at the tillage time, 1250 kg of NPK fertilizer 12 – 34 – 12 was spread for each hectare of soil.
After that, every two months, given another 40 kg of Nitrogen for each hectare of land. If there is still some manure every year, it is given again.
In the Hawaiian islands, fertilizer application varies depending on soil type and climate.
Each farmer has their own dose of fertilization.
Generally, for mountain soils of latosol soil type, 28 grams of NPK fertilizer 2 – 24 – 2 per plant are given at the time of planting.
Fertilizer is applied around the seeds or plants.
After that, each plant is given more fertilizer as follows:
- Two months old 32 grams of NPK 2-24-2 per plant.
- Age 3-5 months 60 grams of NPK 2-24-2 per plant per month.
- Age six months and over 250 grams of NPK 2-24-2 per plant per month.
The high level of fertilizer application in these two places may be because the market demands high-quality fruit and is more likely to guarantee high fruit prices.