23 December 2024
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മലയാളം
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Agriculture >
Plantation Crops > Tea (Camellia sinensis)
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Crop Management
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Production of palnting materials
Propagation
The seed viability extends up to 6 months. Before sowing, seeds are put in water
and only the sinkers will be used and floaters rejected. Seeds germinate in 4-6
weeks and the cracked seeds are transplanted in polythene sleeves.
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Polythene sleeves of 150 g may be used in the nursery. It is recommended to use
a 10 cm lay-flat polythene tube of 30 cm length. The lower three-fourths of the
sleeves may be filled with jungle top soil with appropriate proportions of sand
to make it a sandy loam. The top one-fourth portion of the sleeve should be filled
with the rooting medium. Both the soils should have a pH of 4.5 to 4.8 and EC below
0.05 dsm-1. Single nodal cuttings and the grafted plants are prone to
pestalotia attack for the first to six weeks after planting. Contact fungicides
like mancozeb at the rate of 30 g in 10 litres of water may be applied for protecting
the rooting cuttings from pestalotia attack. Planted cuttings should be kept inside
the nursery 'Pandal' for six to eight months and then transferred to the open space
for hardening. The plants will be ready for planting in the main field in 9 months.
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Nutrient management
in nursery
Composition of tea nursery mixture is as follows:
Ammonium phosphate (20:20)
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60 parts
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Potassium sulphate
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24 parts
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(or) Muriate of potash
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20 parts
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Magnesium sulphate
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16 parts
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Stock solution
Dissolve 30 g of the mixture in 10 litres of water. This can be sprayed over 2 m2
(450 plants) at weekly interval.
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