Varieties of Maize:

Three distinct groups i.e. Pish, Valencia and Virginia are popular varieties. A seed rate of 110 to 150 kg/ha is required. The spacing of the groundnut is 30 x10 cm or 30x15cm.

1. Composite varieties: include Amber, Jawahar, Kissan, Vikaram, Protina, etc.
2. Hybrid varieties: include Ganga hybrid-1, Ganga safed -2 Ganga3 Ganga4, Deccan hybrid
3. A seed rate of 15-25 kg/ha is normally used. Planting density of 75000 plants/ha is essential to get high yields (spacing 60 x 22.5cm)

Growth period and water requirement :

Stage of Growth
Parameter	Initial Stage	Crop Development	Mid-Season	Late Season	Growth Period
Duration Days	20	35	40	30	125
ETm (mm)	10%	30%	50%	10%	500-800
Kc	0.3-0.5	0.7-0.85	1.05-1.2	0.80-0.90	-

Sprinkler Irrigation recommendation from the Premier Range:

As the crop is a closely spaced crop, sprinkler irrigation is ideal for irrigating maize. The recommended models of sprinklers are M110ST & RAYN^TM normally spaced at 12m x 12m or M150ST sprinklers spaced at 18m x 18m.
The sprinkler application rates should not exceed the safe intake rate of the soil to avoid run-off and wastage of water. Refer to the table below for basic intake rates of soils:

S No.	Soil Type	Good Soils with High Organic Content	Poor Soils with Low Organic Content
1.	Coarse sand	20 - 25 mm/hr	12.5 mm/hr
2.	Fine sand	12.5 - 20 mm/hr	9.00 mm/hr
3.	Fine sandy loams	12.50 mm/hr	7.50 mm/h
4.	Silt loams	10.00 mm/hr	6.85 mm/hr
5.	Clay loams	7.50 mm/hr	6.35 mm/hr

Fertilizer Recommendation :

The fertilizer requirement for maize in kg/ha is as under:

S No.	Variety	N	P	K
1.	Desi/Local	60	30	30
2.	Hybrid/& composite	80	40	40

Glossary

Kc = Crop co-efficient.
ETo = Reference evapo-transpiration (mm)
ETm = Maximum evapo-transpiration = Kc x ETo (mm)
ETa = Evapo-transpiration actual (mm)
Ya = Actual yield
Ym = Maximum yield

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Note: The advice and descriptions given herein are for general information only. Premier Irrigation cannot be held responsible for its use or application