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Blackgram :: Systems of Cultivation :: Irrigated |
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Weed management
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- Pre‐emergence application of pendimethalin or pendimethalin + imazethapyr(Ready mix) at 1.0litre /ha on 3 days after sowing followed by one hand weeding or mechanical weeding on 20‐25 DAS.
(OR)
- Pre‐emergence application of pendimethalin at1.0litre /ha on 3 days after sowing followed by tank mix application of quizalofop ethyl @ 500 ml /ha and imazethapyr @ 1 litre/ ha on 15 ‐ 20 DAS.
Note :Herbicides should be applied using Knapsack sprayer fitted with flat fan nozzle using 500 litres of water for spraying one hectare.
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Irrigation management
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- Irrigate immediately after sowing followed by life irrigation on the third day
- Irrigate at interval of 7 to 10days depending on soil moisture conditions
- Flowering and pod formation stages are critical periods of irrigation.
- Avoid water stagnation at all stages of crop growth
- Drip fertigation is also recommended
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Drip Fertigation schedule
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Crop stage
(DAS) |
Duration
in days |
Number of fertigation/ stage (3 days interval) |
Fertilizer grade |
Total Fertilizer (kg/ha) |
| 0-20 |
20 |
6 |
MAP (12:61:0)
Urea(46%N)
SOP(50 % K) |
66.00
15.36
10.00 |
| 21-40 |
20 |
6 |
19:19:19
Urea(46%N)
SOP(50 % K) |
26.00
11.00
10.00 |
| 41-55 |
15 |
5 |
0:52:34 (MKP)
SOP(50 % K) |
9.66
14.24 |
| Total |
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17 |
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MAP-Mono Ammonium Phosphate, SOP- Sulphate of Potash & MKP- Mono Potassium phosphate |
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Blackgram raised under drip system |
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Blackgram raised under drip system
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- Apply TNAU Pulse wonder @ 5 kg/ha as foliar spray during peak flowering stage.
- Spray should be given during early morning or late evening using Knapsack sprayer with 500 litres of water for one hectare.
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Harvesting
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To avoid loss because of the shattering of pods, the crop is harvested, when 80% pods are matured or at physiological maturity ie., Grain colour changing from green to black and leaves turn yellow colour and starts shedding of leaves. Pods are dried on the threshing-floor for a week or ten days and threshed by beating with stick or by multi crop thresher or trampling with tractor.
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Harvest maturity
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