Sunflower Crop Schedule | Nacro Biotech Limited

Stage 1: Land preparation — before sowing

Products to use

Plough the field thoroughly and make the soil loose and well-aerated.
Remove weeds and previous-crop residues.
Incorporate well-decomposed organic manure/vermicompost into the soil.
Vermicompost: 100–150 kg/acre as soil application.
Nacro win :- soil application - 50 kg /acre
Nacro 02 :- 1 kg / per acre
Organic Carbon: 2–4 kg/acre as soil application.
Mr. Soil:- 1litre / per acre
it as a soil-health enhancer intended to improve microbial activity and soil fertility.

Stage 2: Seed treatment — before sowing

Products to use

TSB 99 – Trichoderma viride 100 grm /per acre
TSB 99 for seed treatment and soil application against soil-borne diseases including damping-off
wilt
root rot and related problems. The manufacturer listing gives 120 g/100 L water for its spray application; because that is not explicitly a sunflower seed-treatment rate
use the seed-treatment dosage printed on your current TSB 99 label rather than converting this spray rate.

Stage 3: Sowing — Day 0

Products to use

Use good-quality
healthy sunflower seed.
Maintain proper row-to-row and plant-to-plant spacing according to the sunflower variety and local recommendation.
Ensure adequate soil moisture at sowing.
Avoid waterlogging.

Stage 4: Early root establishment

approximately 10–15 DAS

Products to use

Once seedlings establish
concentrate on root development and nutrient uptake.
Nacro Gold :- 1litre / 100 litres of water for spraying
Nacro Gold as a herbal-based plant nutrient supporting stronger roots and plant health. Apply according to the current label dosage for sunflower.
Mr. Crop :- 1 litre /100 litres of water /acre
Mr. Crop is as an NPK biofertilizer enriched with beneficial microbes to support nutrient uptake. Apply according to the current label dosage.

Stage 5: Vegetative growth

approximately 20–25 DAS

Products to use

At this stage
the objective is vigorous leaf development
strong roots and good plant establishment.
Groster :-1Lit /100 litres of water for spraying
Use Groster as a growth promoter according to the product label. Nacro describes Groster as supporting balanced vegetative and reproductive growth.
Fulvic - 2 - 3 kgs /acre for soil application
Shakthi :- 1 litre/acre for spraying

Stage 6: Weed and field management

approximately 20–35 DAS

Products to use

Keep the field free from weeds
especially during early crop growth.
Do intercultivation/earthing-up where appropriate.
Maintain uniform moisture.
Avoid excessive irrigation because sunflower is sensitive to prolonged waterlogging.

Stage 7: Pest monitoring — throughout vegetative growth

Products to use

Nacro-07 Neem Oil :- 1litre /acre
Nacro-07 as neem oil for agricultural use. Use it according to the current product label and the pest being targeted.
Nacro Raksha :- 1litre /acre 100 litres of water for spraying
Nacro Raksha as a neem-leaf-extract product intended to protect crops from pests such as thrips and mites.

Stage 8: Bud initiation / pre-flowering

approximately 35–45 DAS

Products to use

This is one of the most important stages in sunflower because healthy plants need sufficient nutrition before flowering.
Groster — 1 litre /100 litres of water
Nacro Gold — 1 litres/100 litres of water
Fulvic — 2-3 kgs /acre

Stage 9: Flower initiation

approximately 45–55 DAS.

Products to use

Flowering Stimulant / Mr. Nacro :- 100 litres of water / acre
Shakthi :- 1litre / 100 litres of water /acre

Stage 10: Flowering and seed setting

approximately 55–65 DAS

Products to use

Maintain adequate moisture during flowering and seed development.
Seaweed gel :- 1-2 kgs / acre
Seaweed Gel Extract as supporting photosynthesis
flower development
microbial activity
stress tolerance and productivity

Stage 11: Seed filling / head development

approximately 65–80 DAS

Products to use

At this stage:
Maintain adequate soil moisture.
Avoid excessive nitrogen application.
Monitor the crop for sucking pests and diseases.
Protect the sunflower head from pest damage.
Avoid unnecessary foliar mixtures.
Fulvic — 2-3 kgs /acre for soil application
Seaweed- 2-3 kgs /acre for soil application

Stage 12: Disease management — whenever symptoms appear

Products to use

Regularly inspect leaves
stem and head for disease symptoms.
TSB 99 – Trichoderma viride 100 grms /acre
TSB 99 is listed by Nacro for soil-borne disease management
including root rot
wilt
damping-off and related diseases. Do not automatically spray a disease-control product on a healthy crop. Correct identification of the disease is important.

Stage 13: Crop maturity

approximately 80–100+ DAS

Products to use

Sunflower maturity depends strongly on variety
season and growing conditions.
At maturity:
Leaves gradually turn yellow/brown.
The back of the sunflower head changes colour.
Seeds become well developed and firm.
Reduce irrigation as the crop approaches physiological maturity
while avoiding unnecessary stress.

Stage 14: Harvesting

Products to use

Harvest when the sunflower heads and seeds have reached appropriate maturity and seed moisture is suitable for harvesting/storage.
Cut mature heads carefully.
Dry the heads/seeds properly.
Clean the harvested seed.
Store only well-dried seed in a clean
dry place.

Sunflower

What to use, stage by stage

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