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Triangular planting to boost banana yields



Triangular planting method is best suited for tissue culture banana suckers.

BANANA IS cultivated mostly by square system of planting adopting 1.8m x 1.8m espacement. This method accommodates 3,025 plants a hectare.

To improve productivity by accommodating more number of plants per unit area, triangular method of planting was tested at Akepadu village in Cuddapah district of Andhra Pradesh using Grandnaine tissue culture banana suckers under drip irrigation supporting nutrients through fertigation.

In the triangular method of planting spacing in between rows was 1.5m and plant to plant was 1.8m in the row.

The planting was done in such away that the plants in odd rows were opposite, while the plants in even rows were in between at the centre.

In this way the distance between two plants in the row remained 1.8m while in between rows the distance stretched to 1.75m due to diagonal planting.

This method accommodated 3,630 plants per hectare i.e. 605 plants more than in square system of planting with 1.8m x 1.8m spacement. Pits of 45 cubic cm were dug at planting place and filled with soil mixed with 5 kg of farm yard manure and 300g of single super phosphate.

The banana suckers were planted keeping the rhizome 10 cm below ground level.

Fertigation was done on 15, 30, 60, 90, 120, 150, 180, 210 days after planting with urea and muriate of potash at 50 and 40g each time respectively.

Combined micro-nutrients sprays were given thrice on 60th, 120th & 180th day. Multi-K (Potassium nitrate) was sprayed on bunches twice during finger development.

To control sigatoka leaf spot three sprays with tile at 1 ml, bavistin at 1 gm, Dithane M-45 at 2.5g per litre along with sticker were given at monthly intervals commencing from primordial initiation.

The bunches can be harvested by the 11th month.

M. Ramasubba Reddy & B. Srinivasulu
M. Ramasubba Reddy
& B. Srinivasulu

A.N.G. Ranga
Agricultural University
DAATTC, Kadapa 516 001

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