Package of

Practices

Hy Bt Cotton

Dr. Prakash MaliInstitute for Potential Harvest.

Hurdles

• Rain fed Cultivation area• Selection of Hybrid • Improper Crop management• Imbalance Fertilizer Doses• No judicious use Chemicals• Lack of life saving Irrigation• Less area under Drip System• Heavy infestation of Sucking Pest • Non acceptance for new Ideas• Economy of Farmer• Change in Environment

Change over

• Planting Geometry

• Refugee Plantation

• Integrated Nutrient Management

• Integrated Pest Management

• Timely control of sucking pest

• Use of Drip System

Soil Preparation

Why ?

Rain water percolation

Soil sterilization

Root Efficiency

Organic matter

Soil reclamation

How ?

Deep Ploughing

Open to Sunlight

Soil aeration

Mixing compost & other

Gypsum

Seed Selection

Uniform Germination Deep root system Internodes distance Big boll size Strong branches Hairy leaves Greener canopy Yield Potential Easy picking

Planting Geometry

Conventional Fuli System

Light Soil : 3.5’ x 3.5’Heavy Soil : 4 ‘x 4’

Long Row SystemLight Soil :5 ‘x I’

Medium Soil : 5’ x I.5’Heavy Soil : 5 ‘x 2’

Paired Row PlantingLight Soil : 4 x 2 X I

Heavy Soil : 5 x 2.5 x I

Mechanical sowingPneumatic pressure

High Density Planting8-I0000 plants /acre

Plant Population

Soil Type

Planting Distance( feet )

Area per

plant

Bt Cotton( 80 % )

Non-BtCotton( 20 % )

Total Plants

Per acre

Heavy 4 X 4 I6 2I78 544 2722

Medium 4 X 3 I2 2904 726 3630

Medium 3.5 X 2 7 4977 244 6222

Medium 4 X 2 8 4356 089 5445

Light 3 X 2 6 5808 452 7260

Drip Heavy 5 X I.5 7.5 4646 II62 5808

Drip Light 5 X I 5 6970 742 87I2

Refugee Plantation

Cotton takes 6 -7 month in field.,during this period bollworm completes 8-I0 generations.

If we don’t plant refugee seeds ,this generation become resistant Bt gene .

Bollworm attacks on cotton

Fertilizer Management

Organic

CompostsCow Dung Manure

Poultry ManureEarthworm Manure

@ I trolly /acre

GreenManures

GlyricidiaTag/Dhencha

Neem cakeAs per availability

Bio Fertilizers

NFBPSBKMB

@ I liter / acre

Inorganic

Fertilizer Use Efficiency

Where ? Means ? What ? When ?

Bulk Soil TotalCultivable Land

Manures & Soil Conditioners

Land Preparation

Rhizosphere TotalRoot depth

BulkFertilizers

Basal / Top dressing

Rhizoplane White Root zone

Water soluble & Bio Fertilizers

Growthstages

Lyposphere Leaf Surface

Water soluble & Micronutrients

Flowering / Development

Fertilizer Doses Per Acre

I8:46:00 - 50 kg I0:26:26 -75 kg 20:20:00 -75 kg I8:I8:I0 – I00 Kg I5:I5:I5 – I00 Kg

Potash - 50 kg Urea - 25 kg Potash - 40 kg Potash - 25 kg Potash - 25 kg

Boracol - I0 kg Boracol - I0 kg Boracol - I0 kg Boracol - I0 kg Boracol - I0 kg

I8:46:00 - 50 kg I0:26:26 -75 kg 20:20:00 -75 kg I8:I8:I0 – I00 Kg I5:I5:I5 – I00 Kg

Urea - 25 kg Urea - 25 kg Urea - 25 kg Urea - 25 kg Urea - 25 kg

Magnesium Sulphate - 25 kg

Magnesium Sulphate - 25 kg

Magnesium Sulphate - 25 kg

Magnesium Sulphate - 25 kg

Magnesium Sulphate - 25 kg

Basal Dose : Apply round the plant At the time of sowing

Top Dressing : Apply within the plant rows with Dufan /Vakhar

Fertigation of WSF per acre

Why ? What ? When ?

Grand Growth I9:9:I9 – 2 Kg + Urea I kg Every 5 days

Flowering I3:40:I3 – 2 Kg + Kiecite DF 500 ml Every 8 Days

Boll Development Potassium Schoenite – 3 kg Every I0 Days

Strong Branches Calcium Nitrate – 3 kg Every 30 days

Spraying per I00 litre

Fertigation of Bio Fertilizers per acre

Why ? What ? When ?

Phosphorous solubilization Biophosal – I litre Pre flowering

Potash Mobilization KrishiBact – I litre Boll Maturity

DAS ? What ? How much ?

40-45 00:52:34 + Kiecite G I kg + 500 Ml

60-65 I9:I9:I9 + Magnesium Sulphate 500 gm + 500 gm

80-85 I3:00:45 + Micnelf I6 500 gm + 500 gm

I00-I05 P Schoenite + Micnelf I6 I kg + 500 gm

Growth Stages

Yield contributing growth stages

Growth Stage Care to be taken

Germination Uniform depth of sowing /dibbling

Emergence Avoid physical damage

New sprouting Watering if required

Square formation Spray micronutrients Kiecite G @ 0.5 %

Flowering Spray 00:52:34/I3:40:I3/I2:6I:00 @ I %

Fertilization Spray micronutrients Micnelf I6 @ 0.5 %

Boll setting Spray calcium nitrate @ I %

Canopy Spray I9:I9:I9 @ I %

Boll Development Spray potassium schoenite @ I %

Harvesting Timely picking

Pest Management

Refugee Plantation

20 % area should be covered

Voids bollworm infestation

Bird Stands

Provide I0 – I5 bird stand

Collects egg & larva of bollworm

Trap Crops

Corn ,Marigold,Okra, Cow pea,Moog,

Pigeon pea

Traps Sucking Pest

Sticky Traps

I0 Yellow Trap for White FlyI0 Blue Trap for Thrips

Traps major sucking pest

Diseases

Wilt :

Avoid Planting in high temperature.

Use Gypsum at the time of land preparation.

Drench Trichoderma I liter per acre.

Spot application of Roko 30 gm in I0 liter Water.

Grey Mildew :

Proper crop canopy management.

Ensure aeration and sunlight to canopy.

Spray Sulphur 30 gm in I0 liter water

Alternaria :

Use of micronutrient in basal fertilizer dose

Spray Blue Copper 30 gm in I0 liter water

InsectsSpray for I5 Liter water Thrips :Karate I0 ml or Regent I5 ml

Aphids :

Confidor 7 ml or Pride 3 gm

Jassids :

Admire 4 gm or Acephate 30 gm

White Fly :

Actara 5 gm or Ulala 8 gm

Red Mites :

Ethion 30 ml or Oberon 20 ml

Physiological disorder

Reddening :

Imbalance in fertilizer.

Ensure balance in doses

Apply magnesium sulphate

Square drop :

Timely fertilizer doses

Drip fertigation of WSF

Spray micronutrients

Spray Boron