<%if Instr(1,Request.ServerVariables("Script_name"),"home.asp")=0 then %> <%else%> <%end if%>
   
General
Soils
Seed Material
Cultivation Practices
Nutrients
Irrigation
Pests
Post Harvest
Growth Regulators
Crop Specific
  Nutrient Management

Introduction > Nitrogen > Phosphorus > Potassium > Micronutrients > Magnesium >


Ikisan - Nutrient management in banana

Introduction

  • Banana root system spreads in the top 60 cm soil. Being an exhaustive crop, proper manuring and fertilizer application has to be resorted to in obtaining good yields.
  • The choice of fertilizers, the dosage of nutrients, time of application etc. varies widely with respect to agroclimatic regions and varieties.

The effects of proper fertilization of banana are

  • increase of the crop yield by the improvement of grading, or of weight of bunch,
  • reduction in crop duration
  • increasing the number of marketable good quality bunches per hectare, and
  • Improvement in quality, with physical and chemical characters leading to high return to farmers.

 
Top  


Ikisan - Nitrogen in banana

Nitrogen

  • Nitrogen is the chief promoter of growth. It induces the vegetative growth of pseudostem and leaves giving them desired healthy green colour.
  • A healthy robust vegetative frame is an essential pre-requisite for high yields and nitrogen is mainly responsible for such a vegetative frame. Banana plants which have not received N produce only seven leaves against 17 leaves produced by banana plants supplied with adequate N.
  • If N is deficient in bananas the leaves take 23 days for unfolding against 10 days for the leaves of banana supplied with N.
  • It was observed that greater the number of healthy and large leaves produced during the first 4-6 months, larger will be the size of fruit bunch, N influences the longitudinal growth of petioles.
  • Nitrogen increases the bunch grade, and sucker production. Nitrogen deficiency causes slow growth and paler leaves with reduced leaf area and rate of leaf production.
  • Leaf petioles short, thin and compressed, thin profuse roots and lesser number of suckers are produced due to lack of N. Phosphorus uptake is higher due to N deficiency.

Nitrogen fertilization

Statewise fertilizer recommendations for banana

State

Spacing (m)

N (g)

P2O5 (g)

K2O (g)

FYM (Kg/pl)

(per plant)

Andaman & Nicobar

2 x 2

160

160

280

 

Andhra Pradesh

2 x 2

200

0

200

 

Arunachal Pradesh

2 x 2

180

100

225

20

Assam

1.8 x 2.4

110

35

330

12

Bihar

2 x 2

125

80

225

9

Goa

 

75

75

240

 

Gujarat

1.8 x 1.8 or 1.2 x 1.2

180

90

180

10-15

Karnataka (DC)
(Robusta)
Others

1.8 x 1.8

2.2 x 2.2

2 x 2

540

405

400

325

245

240

675

507

500

40 t/ha

40 t/ha

40 t/ha

Kerala Nendran(irrg.)

Palayankonda (Rain)

Others

2 x 2

2.2 x 1.8

2.2 x 2.2

190

100

160

115

200

160

300

400

320

10

10

10

Maharashtra

1.5 x 2.5

600

720

600

100 cart-load/ha

Mizoram

2 x 2

100

50

300

10-20 kg

Orissa

1.8 x 2.0

80

32

90

 

Tamil Nadu

1.8 x 1.8 (garden land) 1.5 x 1.5 (wet land)

110

110

35

35

330

330

10 kg

10 kg

Uttar Pradesh

2-3 m

200

100

250

 

West Bengal Robusta

Cavendish

Champa

2.4 x 2.4

1.8 x 1.8

3 x 3

140

90

140

35

35

50

90

90

120

10-15 kg

10-15 kg

20

Mode of application of nitrogen

  • Nitrogen should be applied in five split doses. Nitrogen is to be applied in five split doses one at the time of planting
    • 2nd 45 days after planting (DAP)
    • 3rd - 90 DAP
    • 4th - 135 DAP
    • 5th - 180 DAP
  • For banana if 25 % nitrogen is applied in organic farm and remaining amount is applied through inorganic fertilizers that increases the yield.
  • Application of 1 kilo neem cake as a inorganic nitrogen source for banana not only icreases the yield andd quality but also reduces the nematode problem considerably.
  • Application of nitrogen at flowering and fruiting stage not only stops the leaf dropping but also increases the weigtht of the bunch.

 
Top  


Ikisan - Phosphorus in banana

Phosphorous

  • Phosphorus helps to produce healthy rhizome and a strong root system. It also influences flower setting and general vegetative growth.
  • The deficiency of P causes complete cessation of elongation, at a height of about two feet rosetting of leaves with older leaves becoming increasingly irregularly necrotic, leaf production is reduced, and marginal chlorosis and premature death are caused.

Dose :

40-60 g/plant

  • Entire quantity of phosphorus fertiliser should be applied at the time of last ploughing or applied at the time of filling the pits.

 
Top  


Ikisan - Potassium in banana

Potassium

  • Stimulates early shooting and significantly shortens the time required for fruit maturity. It improves bunch grade, and size of fingers. The quality of the fruits is also improved by potassium.
  • Deficiency of potassium causes marked reduction in growth, interval between the production of new leaves become longer and leaves are profusely smaller, premature yellowing of plant.
  • Once the potassium contained in the storage organs is exhausted, deficiency symptoms appear suddenly starting with a yellowing of the tips and distal margins of older leaves, closely followed by necrosis and dessication.
  • The yellowing and necrosis spread rapidly in a proximal direction until the whole leaf has withered standing in a normal position.

  • Fruits are badly shaped, poorly filled and unsuitable for marketing.
  • Splits develop parallel to the secondary veins and the lamina folds downwards, while the midrib bends and fractures, leaving the distal half of the leaf hanging.
  • Purplish brown patches appear at the base of the petioles and in severe cases the centre of the corm may show areas of brown, water soaked disintegrated cell structures.

Dose :

  • 200-300 g/plant

Mode of application of potassium

  • Potassium should be applied in split doses. Potassium is to be applied in five split doses one at the time of planting
    • 2nd 45 days after planting (DAP)
    • 3rd - 90 DAP
    • 4th - 135 DAP
    • 5th - 180 DAP

 
Top  


Ikisan - Micronutrients for banana plant

Micronutrients

Zinc

  • Zinc deficiency is found in banana when it grows in zinc deficient soils. Narrow pointed and chlorite young leaves,Bunch top crowns are the symptoms of zinc deficiency
  • Application of 50 g/plant zinc sulphate at the time of planting is recommended or foliar application of zinc sulphate at 3 g/litre + urea (5g per litre) + 10 ml non ionic sticker in 20 litres of water. The above prepared solution is sprayed at 45 and 60 days after planting.
  • For ratoon crop 45 days after cutting the mother plant.

Boron

  • Deficincy of boron may results in reduction in weight and size of the bunch and it will effects the proper filling of the bunch.
  • For boran deficiency apply 20 g borax per litre at the time of planting of spray boric acid at 0.2 % in 4th of 5th month after planting.

Iron

  • Iron deficiency has been recorded in alkaline soils and is identified by interveinal chlorosis of young leaves.
  • Application of iron sulphate will correct the iron deficiency.

 
Top  


Ikisan - Magnesium for banana

Magnesium

  • Magnesium deficiency symptoms show green banding around the margin and next to the midrib.
  • Spraying magnesium sulphate 2 g/l of water effectively corrects the deficiency.

 
Top  



Site Powered By
  ©Copyright ikisan.com 2000. All Rights Reserved.