The nutrient requirement of sapota is high, as
it is an evergreen tree in continuous state of
growth and fruiting. The fertilizer requirement
of sapota varies from the age of the tree and
soil nutrient status. The recommended fertilizer
schedule is as follows -
Age
of Tree
Fertilizer Dose/Tree (Grams)
FYM
N
P
K
1
20
300
150
100
2
30
450
225
200
3
40
600
300
300
4
50
750
375
300
5
60
900
450
400
6 year onwards
70
100
500
500
(Source : Dept. of Agriculture, Govt. of Maharashtra)
Under rainfed conditions, nutrient application should be done on the onset
of monsoon. However, under irrigated conditions
it should be applied in two splits. Total quantity
of organic manure and half the dose of chemical
fertilisers should be applied at the beginning
of monsoon and remaining half in post-monsoon
period (September-October). Since most of the
active roots are distributed within the depth
of 30cm, nutrients should be applied under tree
canopy and mixed thoroughly in the soil.