Precision farming in french bean
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1.
Precision Farming in French
Beans and
Pole beans |
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Variety |
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Arka Anoop, Arka Suvidha, Arka Komal and popular
commercial varieties. |
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Soil type |
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Well drained fertile soils
with a pH range of 6.0 to 70. |
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Season |
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July-Aug, Oct- Nov |
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See requirement |
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15-20 kg depending on seed size. For pole bean
4kg/acre. |
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Land preparation
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Raised bed method: 10-15cm height,60 cm width, convenient length,45cm inter-bed spacing.
For Pole
bean: 105cm width,
45cm inter-bed spacing. |
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FYM application |
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Apply 10 tonnes of enriched FYM. |
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Neem cake application |
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Apply neem cake @ 250kg. |
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Fertilizer Dose |
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20:30:20 kg. For pole bean:30-40-30 kg N:P:K. |
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Basal fertilizer application |
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Apply 5-8-5 kg N:P:K (25 kg Ammonium sulphate + 50
kg Mono ammonium phosphate + 10 kg Muriate of
potash). Mix well and level the beds properly. |
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Laying of drip line |
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Place one
in-line drip lateral at the center of the bed
for which 3800 meter length of lateral pipe is
required. For pole bean 2660m is sufficient. |
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Polyethylene mulching |
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3800 meter length of mulch film of 1.0m width and
30micron thickness is required (105kg). For pole
bean 2660m is sufficient (90kg). |
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Spacing,
plant population |
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Two rows per bed. Make holes of 5cm diameter at a distance of 40cm between rows and 15 cm within the crop row. The plant density is 50800 one acre. Dibble seeds exactly at the centre of the hole to avoid the emerging seedlings touching the mulch film.
Pole bean: 75cm between rows and
30cm between seeds in a row. The plant density is
18000/acre. |
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Irrigation
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Run the drip irrigation daily for a duration of 20
to 40 minutes depending on the crop stage, season
and emitter discharge. |
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Fertigation |
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Schedule fertigation once in 3 days starting from 15
days and ending at 66 days after sowing for a 2½
month duration crop, thus requiring 18
fertigations.
Pole bean:
continue up to 87 days after sowing for a 3½
month crop, thus requiring 25 fertigations. |
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Water soluble Fertilizers for fertigation |
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0-14 days:
No fertigation.
15-30 days:
2.0kg 19-19-19 /fertigation (6 fertigations)
33-45 days:
3.0 kg 19-19-19 +1.0 kg KNO3 + 2.0 kg
Mono Ammonium Phospate/fertigations (5
fertigations)
48-66 days:
4.0 kg 19-19-19 + 1.0 kg KNO3+ 1.5 kg
Mono Ammonium Phosphate/fertigation
(7 fertigations)
(55 kg 19-all+12 kg KNO3+ 20 kg MAP for
bush bean).
Pole bean:
continue fertigation upto 87 days after sowing (14
fertigations) (83 kg 19-all+19 kg KNO3+
31 kg MAP). |
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Foliar nutrition |
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Give foliar sprays @5g/litre using foliar spray
grade fertilizers containing Ca,Mg, Fe, Mn, B, Cu,
Zn three times at 45, 60 and 75 days days after
sowing.
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Neem cake application |
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Apply neem cake @ 250kg/acre to the beds treated
with bio-agents. Note: This may affect germination |
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Insect
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Stem fly |
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Avoid planting in May-June when the incidence is generally high. If
stem fly adults are observed on the plants
immediately after germination, spray PNSPE (40 g/l)
or Neem soap/ pongamia
soap (10 g/l)
at 7, 10 and 15 days after sowing. Otherwise
give only two sprays at 10 and 15 days after sowing.
If there is any good rain fall during this period
then these botanicals will be washed off. Hence,
spray
Quinalphos 25 EC (1.5 ml/l) for the management of
stem fly in beans at 10 and 15 days after sowing..
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Thrips |
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Spray PNSPE (4%) o r neem/ pongamia soap ( 8-10g/l)
after flowering, if required give sprays at 10 days
interval |
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Leaf hopper |
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This pest is serious during North East
monsoon period. Hence, during this period sprays of
PNSPE (40 g/l) or Neem soap (10 g/l) at 7-10
days interval according to pest infestation. |
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Disease management
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Root rot complex |
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Seed treatment with Carbendazim (2.0 g/kg) |
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Rust |
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Rust resistant varieties like Arka Anoop |
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Spray Triademefan (1.0g/l) or Propiconazole
(0.5 ml/l) or Bitertinol (1.0 g/l) |
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Powdery Mildew |
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Spray Triademefan (1.0g/l) or Propiconazole (0.5
ml/l) or Bitertinol (1.0 g/l). |
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Angular leaf spot |
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Spray Carbendazim (1.0 g/l) or Tricyclozole (0.6g/l) |
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Common blight of bean |
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Bordeaux
mixture
or Copper Hydroxide or
Copper oxychloride (0.3 g/l) |
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Bean golden mosaic |
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Vector Management |
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Spray Imidacloprid 200S L (0.3ml/l) or Thiomethoxom 25 WP (0.3g/l) in
nursery after 15 days of sowing and after 15 days of
planting in main field
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Bean common Mosaic |
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Spray Imidacloprid 200S L (0.3 ml/l) or Thiomethoxom
25 WP (0.3 g/l) in nursery after 15 days of sowing
and after 15 days of planting in main field
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Staking |
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For pole beans: Plants have to be supported with wooden
poles (Inverted ‘V’ shape, GI/plastic wire and gunny
twine. |
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Harvesting and yield |
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Harvesting starts
after 45 DAS. Yield: About 10 tonnes in bush
beans and 15 tonnes in pole beans. |