Use of Chemical fertilizers in Cotton (Gossypium sp.)

Recommended dose of Nitrogen, phosphorous and potash per acre for different regions of Karnataka are as follows:

Zones/ Varieties/Hybrids	Recommended quantity of nutrients (kg/ac)
I. Rainfed (varieties)	Nitrogen	Phosphorus	Potash
1. Low rainfall area	10	10	4.8
2. Northern dry tract	12	6	6
3. Transitional tract	16	10	10
II. Rainfed (hybrids)
1. Malanad tract (zone 9)	40	40	40
2. Transitional tract (zone 8)	32	16	16
III. a. Irrigated (varieties)
For  all zones	32	16	16
III. a. Irrigated
Hybrids:
1. Inter specific hybrids	60	30	30
2. Intra hirsutum hybrids	48	24	24
Varieties:	32	16	16
IV. Summer cotton
1. Varieties	32	16	16
2. Intra hirsutum hybrids	48	24	24