Skip to main content

Foliar Spraying of Micronutrients in Banana

 

 FOLIAR SPRAYING OF MICONUTRIENTS IN BANANA

Dr.S.Haripriya

Assistant Professor (Horticulture), ICAR-Krishi Vigyan Kendra, Tamil Nadu Agricultural University, Vriddhachalam

Banana (Musa spp.) is one of the earliest crops cultivat­ed by man which still remains to be one of the world's most important fruit crop. At present, it is grown in more than 120 countries throughout tropical and subtropical regions of the world and staple food for more than 400 million people.

Table 1. Standard micronutrients recommendations for foliar spraying in Banana

 Recommendation

Dose

Foliar Spraying

Months after planting

Attention

3

4

5

6

7

TNAU

Zinc Sulphate

Ferrous Sulphate

Copper Sulphate

Borax

 

(0.5%)

(0.2 %)

(0.2 %)

( 0.1%)

 

5 mg/ l of water

2 mg/l of water

2 mg/l of water

1 mg/l of water

 

3

 

-

 

5

 

-

 

7

Care should be taken, while using copper sulphate and mix the mineral salts separately using wooden planks.

NRCB Banana Sakthi

Contains  4.8% iron, 5.3% zinc, 2.8% boron, 2.4% copper and 4.6% manganese

 

2 %

 

20 mg/l of water

 

-

 

4

 

5

 

6

 

-

Soak the mixture over night and use the supernatant for spraying, discarding the sediments.

IIHR /Arka Banana Special

micronutrients such as zinc, iron, boron, copper, manganese, molybdenum and secondary nutrients such as calcium, magnesium and sulphur

 

0.5 %

 

75 g/15l of water

 

-

 

-

 

5

 

6

 

7

Add juice of 2 lemon fruits+ 2 ml soap /shampoo packet and mix the contents and spray

The prefix "micro" is well-understood from its use in terms such as "microscope". The micronutrients are boron, copper, iron, manganese, molybdenum and zinc. These plant elements are need for plants in very small amounts, as they are important for plant development. They act as activators of many plant functions and major functions of micronutrients used in banana are listed here,

Micronutrient

Role of the micronutrient in Banana

Boron (B)

Necessary for sugar translocation and promotes fruit maturity

Copper (Cu)

Catalyzes several plant processes like photosynthesis, development of reproductive stage, indirect role in chlorophyll production , increases sugar content , intensifies colour  and improves flavour of the fruits on ripening

Iron (Fe)

Promotes formation of chlorophyll pigments, acts as an oxygen carrier and  reactions involving cell division and growth

Zinc (Zn)

Aids in regulating plant growth hormones and enzyme system, necessary for chlorophyll production, carbohydrate and starch formation.

Manganese (Mn)

Functions as a part of certain enzyme systems and aids in chlorophyll synthesis.

Molybdenum (Mo)

Required to form the enzyme "nitrate reductase" which reduces nitrates to ammonium and needed for converting inorganic phosphates to organic forms in plants.

The sulphate (salt) form of micronutrients such as Cu, Zn, Fe and Mn represents a water-soluble form that is available to plants. As micronutrients such as Cu, Fe, Mn and Zn are held within ring-type compounds, chelated micronutrients of Zn and Fe can also be used for foliar spraying in Banana, as they remain in plant-available form for longer period.

Micronutrient mixtures should be sprayed early in the morning or late evening for better results. It's advisable to use wetting agents or surfactant or Khadi soap solution at the rate of 1-2 ml/l of the solution along with the micronutrients for effective spraying. Make sure that the spray solution should cover the whole plant including leaves and pseudo stem as specified during its growth and development stage in Banana.

0
Your rating: None Average: 4.5 (2 votes)

Please note that this is the opinion of the author and is Not Certified by ICAR or any of its authorised agents.