MARIGOLD

• Disease and their control:
  

Powdery Mildew: Patchy, White powdery growth appears on lower side of leaves. It parasitizes the plant using it as a food source. It commonly occurred on older leaves but it can develope at any stage of crop development. In severe infestation it causes defoliation.
Avoid water lodging in field. Keep field clean. If infestation is observed in field take Spray of water soluble Sulphur@ 20gm/10Ltr of water 2 times with interval of 10 days.

Damping off: Moist and poorly drained soil causes damping off disease. It is soil borne disease. Water soaking and shrivelling of stem occurs. If it appears in nursery the entire lot of seedling may get destroyed.
To control, Drench nearby soil with Copper oxychloride@25gm or Carbendazim@20gm/10Ltr of water.

Depending upon variety use, marigold will be ready to harvest in 2 to 2.5months. French Marigold ready for harvesting in 1.5 month where as two months required for African Marigold. Plucked marigold plants when they attain full size. Harvesting should be done either in morning or evening hour. Field should be Irrigated before plucking of flower, it will help to maintain quality for longer period.

Use bamboo basket or gunny bags for packing of flowers. Then trasport them to local or distant market. Fresh flower yield in rainy season about 83-93qtl/acre where as in winter 60-70q/acre.

It can be grown on wide range of soil. But it grow best on well drained fertile soil. Soil should be well drained as it cannot withstand in water logged soil. pH of soil should be in range of 6.5 to 7.5. Acidic and saline soil is not suitable for cultivation. French Marigold are grow best in light soil whereas soil with rich manured is best for African Marigold.

African Marigold: Crop of these varieties are tall up to 90cm. Flower are of big size and having color like lemon, yellow, golden yellow, orange or bright yellow color. This is long duration variety. It includes variety like, Giant Double African Orange, Crown of Gold, Giant Double African Yellow, Chrysanthemum Charm, Golden Age, Cracker Jack etc.

French Marigold: These are early maturing dwarf varieties. Its flowers are small size having colors ranges from yellow, orange, golden yellow, rusty red, mahogany etc. It includes varieties like Rusty Red, Butter Scotch, Red Brocade, Star of India, Lemon drop etc.

Pusa Basanti Gainda: It is a long duration variety. Plant height is about 58.80cm tall with dark green leaves. Flowers are of sulphur yellow colored, double and carnation type.

Pusa Narangi Gainda: It required 125-136days for flowering. Its plants are tall with height of 73.30cm and leaves are of dark green color. Flowers are of orange colored and carnation type. Flowers are compact and double layered. Gives average yield of 140q/acre of fresh flower.

Plough land and bring field to fine tilth. To increased fertility of soil, at time of last ploughing add 250q of Farm Yard Manure or well decomposed cow dung in soil.

Time of sowing
Sowing of marigold can be done round the year. In rainy season, do sowing in mid-June and Transplanting in mid-July. In winter, do sowing in mid of September and in mid-October, complete transplantation.

Spacing
Prepared nursery bed of 3mx1m size. Add well decomposed cow dung on it. Irrigated bed and keep it moist. Crushed well dried flowers and broadcast them on bed or sown in line. When seedlings attained height of 10-15cm, they are ready for transplantation. Transplant seedlings at 35 x 35cm for French marigold while 45 x 45cm for African marigold.

Sowing Depth
Broadcast seeds on nursery bed.

Method of sowing
For sowing use transplanting method. 

Seed Rate
0.6 to 0.8kg seeds are required for one acre land.
When crop is 30-45days old carry out pitching operation. It means removal of terminal portion of plant. It help to make plant bushy and compact, also more number of good quality flowers with uniform size are obtain. 

Seed Treatment
Treat seed with Azospirillum@200gm mixed it in 50ml of rice gruel before sowing.

Take weeding operation depending upon intensity of weed.

Fertilizer Requirement (kg/acre)

Nutrient Requirement (kg/acre)

Apply basal dose of N:P:K@32:16:32kg/acre in form of Urea@70kg, Single Super Phosphate@100kg and MOP@53kg/acre for good growth. Fertilizer dose changes according to soil type. To give accurate fertilizer dose, do soil testing and apply fertilizer according to it.

After plantation in field give irrigation immediately. Bud formation to harvesting is most important stage for irrigation. Water stress should not Occurred at this stage. Avoid water stagnation in field. In April to June month frequent irrigation at the interval of 4-5days is necessary.

It is a commonly grown flower of India. It is very important flower, as it extensively used on religious and social function. Also it is used as trap crop. As it is short duration crop with low investment, it become popular crop of India. Marigold flowers are attractive in shape and color. It is widely adopted because of ease of cultivation. On basis of size and color, it has two main varieties, African marigold and French marigold. Plant of French marigold variety are short while flowers are small in size compared to African marigold. Maharashtra, Karnataka, Gujarat, AP, Tamilnadu and MP are major marigold cultivator in India. Dussehra and diwali are two festival when demand for this crop is highest.

• Pest and their control

Mealy Bug: These are observed on leaves, stem and on young shoot. They secret honey dew like substance and because of it sooty mould developed on leaves and give black appearance.
If infestation is observed, take spray of Dimethoate@2ml/ltr of water.

Thrips: Discolouration of plant tissue is observed. Discoloration, rolling and defoliation of leaves is observed due to thrips infestation.
To know intensity of thrips, set up yellow sticky trap@20 for one acre. If infestation is seen, take spray of Fipronil@1.5ml/litre of water or Azardiractin@3ml/litre of water.