RICEBEAN

Ricebean is known as Vigna umbellata as botanical name. It is a perennial legume having an average height of 30-100cm and can be grown up to 200cm. The leaves are trifoliate having leaflets 6-9cm long. The flowers are bright yellow in color which bears fruits. Fruits are cylindrical which bears the seed of 6-8mm in size. It is found in Indo-China, Southern China, Nepal, Bangladesh and India. Himachal Pradesh, Uttaranchal, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, Tripura, Madhya Pradesh and Chhattisgarh are major ricebean growing states in India.

It is grown in the variety of soil ranging from loamy to sandy loam soil having a good drainage system. It grows moderately on poor or light fertile soil. Avoid cultivation in the saline-alkaline soil, sandy or having waterlogged soils. Do not grow ricebean in light soils as it causes root-knot nematode problem to the crop. 

PRR2: Normal duration, high yielding variety developed by GBPUA&T. It gives average yield of 6qtl/acre.
 
BRS 1: High yielding variety, developed by NBPGR, Bhowali. It is suitable for hilly region. This variety seeds are having black color. It gives average yield of 7qtl/acre.

For ricebean plantation, it requires fine seedbed which is well prepared by the farmer. For good plant standing it requires prepared seedbed. Seed germination is done on fine seedbed and transplanting is done on prepared nursery beds.

Time of sowing
As it is a kharif season crop, sowing is done mainly in the first – third week of July month.

Spacing
Depending on plant growth habit, use row spacing of 30 cm and plant spacing of 10-12 cm.

Sowing Depth
Seed should be sown at depth of 3-4cm. For sweet corn cultivation keep depth of sowing to 2.5cm.

Method of sowing
Sowing can be done by:
Broadcasting
Dibbling

Seed rate:
For good yield, use seed rate of 10-12 kg per acre.

Sow ricebean seeds on prepared beds having convenient length and width. Sow the seeds with the help of seed drill. For higher seed germination sowing is to be done under good water conditions.

Fertilizer Requirement (kg/acre)

Nutrients Value (kg/acre)

At the time of land preparation, apply well rotten farmyard manure @10-15 ton/acre. Apply fertilizer dose of nitrogen @6kg/acre (urea @13kg/acre) and phosphorus@8kg/acre (single superphosphate @50kg/acre).
 

Frequent weeding and hoeing are required to keep the field weed free. 1-2 hoeing are required after 30-50 days of sowing to control the weeds. Mulching is also an effective way to reduce soil temperature along with weed control.

In monsoon, there is no need for irrigation.  But when monsoon doesn’t occur on time or drought occurs then apply irrigation 2-3 times in the post-monsoon period.

• Pest and their control:
  

Lizard: It causes cuts to the leaves and bunds of the plant.
Spraying of pesticide around the plant will help to remain lizard away from the plants. Spraying must be done in evening.

Larva: It destroys the leaves and pod of the plant by feeding themselves on the leaves and bore in the pod.
 

Small larva (hairy caterpillar): The caterpillar damages the leaves and green stems by feeding themselves.
Spraying of Ekalux 25 EC@500ml in 80-100 ltr of water or Nuvan 100 @200ml in 80-100 ltr of water is used to treat hairy caterpillar.

Blister beetle: The beetle damages the flower and blocks the pod formation.
Spraying of deltamethrin 2.8 EC @200ml or indoxacarb 14.5 SC @200ml or acephate 75 SP @800gm/acre in 80-100 ltr of water is given to treat blister beetle pest.
 

Pod borer (Lepidoptera): It damages the pod by eating the young seeds or by moving on one pod to another.
Spraying of indoxacarb 14.5 SC @ 200 ml or acephate 75 SP @ 800 g or spinosad 45 SC @ 60 ml in 100 litres of water per acre is given to treat pod borer.
 

• Disease and their control:
  

Leaf stem rotten: The disease damages the stem and as a result there is low seed yield and its quality also decreases.

Yellow leaves: The disease appears firstly as a red spot and then gradually it turns into reddish brown and then yellow. It will decrease the leaves yield.
Remove the infected portion as early as possible to treat this disease.

Harvesting is mainly done when 80% of pods turn brown in color. Harvesting is done mainly in the morning to avoid upsetting of the pod. The harvesting is done in small patches because the plants are interlinked with each other.

After harvesting, grains are sun dried. After drying they are packed in gunny bags or wooden boxes for long distance transport and for sale purpose.