|Height when Fully Grown||2-3 Feet|
|Spread ( Width of Trunk )||1.5 Feet|
|Temperature||below 60 degrees|
PINEAPPLE CULTIVATAION SPECIFICATION (Annanas comosus)
Pineapple (Ananas sativus) Bromeliaceae
Kew, Mauritius and Queen are the commercially cultivated pineapple varieties in Tamil Nadu.
Soil and climate
Mild tropical climate as found in the humid hill slopes is best suited for cultivation. This can also be grown in plains under shade i.e as intercropping system. Elevation from 500 m to 700 m is ideal for cultivation. A light well drained soil with pH 5.5 to 7.0 is highly preferable. Heavy soils can also be used for commercial cultivation if drainage facilities are available.
Plant in double rows either in beds or in trenches with the plants into the second rows set in the middle of the plants in the first row. The spacing between two trenches will be 90 cm. Row to row spacing in the same bed per trench will be 60 cm and plant spacing within the row is 30 cm.
Use suckers and slips of 300-350 g weight for planting. Give a slanting cut to the suckers before planting and dip in Mancozeb 0.3 % or Carbendazim 0.1%.
Method of propagation
The ideal season for planting is July – September
Manures and fertilizers
FYM 40-50 t/ha, N 16 g, P 4 g and K 12 g/plant in two equal splits at 6th and 12th month after planting. Apply as foliar spray 0.5% - 1.0 % sulphate of Zinc and Ferrous solutions at 15 days interval to overcome the deficiencies in the early crop phase.
To have uniform flowering apply NAA 10 ppm + 2 % urea (20 g in 1 lit of water) at 50 ml/plant poured into crown, or 2 % urea + 0.04 % Sodium carbonate + 20 ppm Ethephon (ethrel) at 50 ml/plant poured into the crown the when the crop attains 35 – 40 leaf stage. To increase the size of the fruit, 200 – 300 ppm NAA should be sprayed after fruit formation. To avoid calcium induced Iron chlorosis adequate shade should be given.
Mealy bugs can be controlled by spraying Methyl Demeton 2 ml/lit or Monocrotophos 36 WSC 2 ml/lit.
Fruits can be harvested from 18 to 24 months after planting. Slight colour change at the base of the fruit indicates maturity.
An average of 50 t/ha can be harvested from well maintained pineapple orchard. One plant crop and two ratoon crops are normally practiced in most of varieties and in Mauritius variety up to five crops can be taken.
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