Drainage is very important for cultivation of cluster bean as there might be developmental damage due to water logging. Although the productivity of the crop is enhanced by irrigation immediately after sowing, with improvement of the seed protein content. If it is grown in areas of high rainfall, irrigation might not be required. Drip irrigation can be used for maximising the productivity of cluster bean cultivation.
- Although it doesn’t require much supplemented nitrogen but a small dose of 20kg/ha helps in early growth stimulation.
- Phosphoric fertilizer enables effective nodulation, greater seed size and improved variety. Generally 40kg of P2O5/ha increases the seed and stalk yield, enhances crop growth and other characteristics like number of pods per cluster, number of pods per plant and seed yield per plant.
- ZnSO4 application of 25kg to 30 kg/ha is found to be positive for the plant growth. Zn increased the gum content and also provides resistance against BLB disease.
- Inoculation of the seeds with Rhizobia helps in increasing nodulation as well nitrogen fixation. Plants which were grown from seeds inoculated were slightly taller with more nodes on main stem.
Weed ManagementAs Cluster beans is a Kharif crop, due to various factors many weeds grow around it which compete for nutrients, moisture and space and thus is very important to remove them for better yield of the plant. It is very important to clear the field within 20 days of sowing seeds, followed by another clearing session within 35 to 40 days. Proper control of weeds may increase the seed yield by 60%.
Pests and ManagementThe plants are also highly susceptible to various kind of pest manifestation. Most common are Leaf hopper, Ash weevils, Pod borer. There are various ways by which we can control pest manifestations:
- Leaf Hopper: spray Dimethoate 30 EC 1ml/l of water or Methyl Demeton 1ml/l of water.
- Ash Weevils: spray Phospholane 1.5 to 2.0ml/l of water .
- Pod Borer: spray Quinalphos 2ml/l of water or Carbaryl 50 WP 2gm/l of water.
Diseases and Management
- Alternaria Leaf spot: seed borne disease, indicated by dark brown, round to irregular spots on leaf blades. In case of high infection many spots merge covering majority of the leaf. The plants may not flower if infected during early phase. If there is high rainfall and humidity, the occurrence of the disease might increase. Activities of polyphenol oxidase and perioxidase enzyme increase the intensity of the disease but catalase enzyme decreases it.