Onion Fertilization Plan & Schedule

Onion Fertigation Plan & Schedule

Purely Nitrogen, Phosphorus & Potassium Requirement with Furrow Irrigation 
 (Kgs for complete Crop)

Crop Stage	Macro Nutrients Required in Kgs for Complete Crop
	Nitrogen	Phosphorus	Potassium
Recommendations for traditional Patterns of Irrigation	36.5	34.5	25
In-Terms of Urea, DAP & SOP	1	1.5	1

 

Purely Nitrogen, Phosphorus & Potassium Requirement with Drip Irrigation
(Kgs for complete Crop)

Crop Stage	Macro Nutrients Required in Kgs for Complete Crop
	Nitrogen	Phosphorus	Potassium
Recommendations for Irrigation with Drip Irrigation	26	25.3	18
In-Terms of Urea, DAP & SOP	0.7	1.1	0.72

 

Purely Nitrogen, Phosphorus & Potassium Requirement

(Kgs/Acre/Day)

 

Crop Stage	Macro Nutrients Required in Kgs/Acre/Day
	No. of Days	Nitrogen	Phosphorus	Potassium
Setting up plant after Transplanting	20	0.277	0.102	0.065
Vegetative Growth	30	0.185	0.102	0.065
Flowering and bulb development	70	0.185	0.204	0.130
Bulb maturity and harvesting	30	0.092	0.204	0.194
Total	150	26.800	25.500	18.170

  

Required Macro-Nutrients in terms of Fertilizers for Drip Irrigation

(Kgs/Acre/Day)

 

Crop Stage	Macro Nutrients Required in Kgs/Acre/Day
	No. of Days	Urea	DAP	SOP
Setting up plant after Transplanting	20	0.36	0.22	0.13
Vegetative Growth	30	0.24	0.22	0.13
Flowering and bulb development	70	0.24	0.44	0.26
Bulb maturity and harvesting	30	0.12	0.44	0.39
Total	150	34.96	55.43	36.34

 

Required Macro-Nutrients in terms of Fertilizers for Drip Irrigation

(Kgs/Crop-stage)

 

Crop Stage	Macro Nutrients Required in Kgs/Acre/Crop Stage
	No. of Days	Urea	DAP	SOP
Setting up plant after Transplanting	20	7.23	4.43	2.6
Vegetative Growth	30	7.24	6.65	3.9
Flowering and bulb development	70	16.89	31.04	18.2
Bulb maturity and harvesting	30	3.6	13.30	11.64
Total	150	34.957	55.435	36.340

 

Required Macro-Nutrients in terms of Fertilizers for Ridge, Bed & Furrow Irrigation (Kgs/Crop-stage)

 

Crop Stage	Macro Nutrients Required in Kgs/Acre/Crop Stage
	No. of Days	Urea	DAP	SOP
Setting up plant after Transplanting	20	10.33	6.34	3.72
Vegetative Growth	30	10.35	9.51	5.58
Flowering and bulb development	70	24.15	44.39	26.03
Bulb maturity and harvesting	30	5.15	19.03	16.65
Total	150	49.99	79.27	51.97