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WHEAT
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For normal wheat crop under optimum growing conditions 4 – 5 irrigation are sufficient.
First irrigation should be given 3 – 4 weeks after sowing.
Out of all stages, crown root initiation (CRI) is the most important stage for irrigation in view of nutrient availability and root development.
Other critical stages are tillering, heading, , milky and dough. |
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RICE
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For rice crop depth of standing water must be regulated according to the requirements.
The critical stages are immediately after sowing, tillering and grain filling. |
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COTTON
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Over all 7 – 8 irrigation are sufficient.
The first is to be given 35 – 40 days after sowing and subsequent irrigation are applied at 15 days interval.
The most critical stage of irrigation is early flowering to first boll opening and maturity.
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SUGARCANE
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| The crop requires 30 - 33 irrigations at 15 days interval during the winter and weekly in summer. |
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SUNGLOWER
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| Three to four irrigations are required. |
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BAJRA
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| In all 3 – 4 irrigations are required which may be scheduled at 30, 50 and 70 days after sowing. |
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MAIZE
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Maize requires 6 – 8 irrigation .
Ist. Irrigation should be given after 3 -4 weeks of sowing.
The crop should not be allowed to pass through moisture stress at milky and grain development particularly when N is applied at a rate greater than 100 Kg/ha. |
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JOWAR
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| Three – four irrigations are sufficient. |
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BARLEY
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Barley requires 3 – 4 irrigations.
First irrigation at 35 DAS is to be given.
The irrigation at actively tillering increases the yield. |
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GRAM
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Heavy pre-sowing irrigation is better than light pre-sowing irrigation.
The crop requires one post-sowing irrigation at pre-flowering in slightly heavier soils and two irrigation in lights soils. |
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LENTIL
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| One irrigation at pre-flowering is adequate but in light soils the crop requires two irrigations. |
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MUNG
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Mung crop requires 3 – 4 irrigations.
Irrigation at pod filling is necessary. |
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GUAR
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| Guar is comparatively drought resistant crop. However, if irrigation water is available then 2 – 3 irrigations increase the yield. |
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SAFFLOWER
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Five to seven irrigations are required from sowing to maturity.
The crop should be irrigated at intervals. |
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SOYBEAN
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The soybean requires four to six irrigations.
The irrigation at pod filling stage is critical. |
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RAPE & MUSTARD
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| Three to four irrigations may be given to “ toria” and sarsoon 1 – 2 irrigation to Jamgho at 25 - 30 days intervals. |
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GROUND NUT
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| Ground nut requires 5 -7 irrigations. First irrigation 25 – 30 days after sowing and subsequent irrigations at 15 – 20 days intervals. |
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| LINSEED |
| 4 – 5 irrigations are enough. First irrigation 30 days after sowing and subsequent at 20- 25 days |
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| SESAMUM |
| The crop requires 3 – 4 irrigations at 30 days interval. |
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