Ribbed Gourd(Luffa acutangula Roxb.); Cucurbitaceae

CO 1, CO 2 and PKM 1.
Ridge gourd COH1
Sandy loam rich in organic matter with good drainage and a pH range from 6.5-7.5.
July and January.
Variety: 2 kg/ha and hybrids -1kg/ha. Sow the seeds (3 seeds/pit) treated with Trichoderma viride @ 4 g or Pseudomonas fluorescens @ 10g/kg of seeds and thin the seedlings to two per pit after 15 days.
Plough the field to fine tilth. Dig pits of 30 cm x 30 cm x 30 cm size at 2.5 x 2 m spacing and form basins.
Irrigate the basins before dibbling the seeds and thereafter once a week
Apply 10 kg of FYM, 100 g of NPK 6:12:12 mixture as basal per pit and N @ 10 g per pit 30 days after sowing. Apply Azospirillum and Phosphobacteria @2 kg/ha and Pseudomonas 2.5 kg/ha along with FYM 50 kg/ha and neem cake @ 100 kg/ha before last ploughing.
Install drip system with main and sub-main pipes and place the inline lateral tubes at an interval of 1.5 m. Place the drippers in lateral tubes at an interval of 60 cm and 50 cm spacing with 4 LPH and 3.5 LPH capacities respectively.
Dig pits of size 45 x 45 x 45 cm at spacing of 1.5 m between row 2 m between plant. Sow three seeds in each pit. After germination, thin to 2 healthy seedlings. Instead of direct sowing, the seeds can be sown in poly bags @ 2 seeds / bag and 15 days after germination, they can be planted @ 2 seedlings per pit.
Apply a dose of 250:100:100 kg NPK/ha throughout the cropping period through split application.

Ribbed gourd (Hybrid)
Recommended dose: 250:100:100 Kg/ha
Crop Stage Duration
in Days
Fertilizer
Grade
Total
Fertilizer
(Kg/ha)
Nutrient Supplied % Requirement
N P K N P K
Crop
establishment
10 12-61-0
13-0-45
Urea
32.79
22.00
39.49
3.93
2.87
18.20
5.00



10.00

10.00 5.00 10.00
Subtotal 25.00 5.00 10.00
Vegetative 30 19:19:19
+ MN
Urea
157.89
97.67
29.99
45.00

7.50



29.99

30.00 7.50 30.00
Subtotal 74.99 7.50 29.99
Flower
initiation to
first picking
20 12-61-0
13-0-45
Urea
49.17
44.00
137.52
5.91
5.72
63.84
7.50



20.00

30.00 7.50 20.00
Subtotal 75.47 7.50 20.00
Harvesting 60 12-16-0
13-0-45
Urea
32.79
88.00
129.39
3.93
11.44
59.63
5.00



40.00

30.00 5.00 40.00
Total
duration
120
days
Subtotal 75.00 5.00 40.00
Total 250.46
(or)
250.00
25.00 99.99
(or)
100.00
100 25 100
*75% RD of Phosphorus applied as superphosphate = 469 Kg/ha.
1. 19:19:19 = 158 kg/ha
2. 13:0:45 = 154 kg/ha
3. 12:61:0 = 115 kg/ha
4. Urea = 405 kg/ha

Hoe and weed thrice and provide support for the plants to reach the pandal erected at a height of 2 m. Spray Ethrel 250 ppm (2.5 ml/10 lit. of water) four times commencing from 15th day of sowing at weekly interval to increase yield.

Pest
For Leaf miner – Liriomyza trifolii,
Red pumpkin beetle – Aulacophora foveicollis,
Aphids– Aphis gossypii,
Thrips– Thrips palmi,
White fly – Bemesia tabaci,
Pumpkin caterpillar – Diaphania indica and
Fruit fly– Bactrocera cucurbitae,
Spray cyantraniliprole 10.26 OD @1.8ml/lit. or Azadirachtin 0.03%


Aphids and jassids
Imidacloprid 70 WG                                             1.0g/10lit.


Fruit borers & Caterpillars
Chlorantraniliprole 18.5 SC                                  2.0ml/10lit.


Red Spider mite
Dicofol 18.5 EC                                                        2.0ml/lit.


Fruit fly
1. Collect the affected fruits and destroy.
2. The fly population is low in hot day conditions and it is peak in rainy season.
Hence adjust the sowing time accordingly.
3. Expose the pupae by ploughing.
4. Install cucurbit fruit fly trap @ 4/ acre
5. Neem oil @ 3.0 %
Do not use copper and sulphur dust, as these are phytotoxic

Powdery mildew
 Spray dinocap @ 1 ml/l or carbendazim @ 0.5 g/l
Downy mildew
 Spray mancozeb or chlorothalonil @ 2 g/l twice at 10 days interval
CIB recommendation
 Spray ametoctradin + dimethomorph 20.27% w/w SC @ 0.04%

Variety: 14 – 15 t/ha in 125 days.
Hybrid: 35-40 t/ha in 135 – 175 days

Crop Growing districts                           Erode, Coimbatore, Tiruppur
Major markets in Tamil Nadu               Periyar Vegetable Market Koyambedu, Chennai, Gandhi Market, Oddanchathiram, Natchipalayam                                                                                vegetable market, Coimbatore

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