introduction well drained upland field with sandy loam soil near irrigation source is selected for...
DESCRIPTION
Land Preparation Dry Nursery: Summer ploughing reduces the water requirement for initial land preparation. Flood the field 1 or 2 days before ploughing Wet Nursery: Add organic manures as needed. Irrigate, plow, puddle and level the field SRI Nursery: Seedlings raised in egg boxes filled with medium is advantageous but conventional wet beds can be used. The addition of organic manure is advisable.TRANSCRIPT
Introduction
• Well drained upland field with sandy loam soil near irrigation
source is selected for bed preparation.
• 500m2 nursery produces seedling sufficient for 1 ha field. Beds 1-
1.5 m wide and length depending upon the slope and structure of
soil are made. Raised beds are ideal if the soil is clayey.
• Wet bed, dry bed and SRI Nursery are the three major methods
of raising rice seedlings in a nursery.
Nursery Site Selection:
Nursery should be located away from electric light as they attract
insects at night.
Location: Near irrigation source, leveled, and convenient for
cultural operations and free from stubbles, stones, etc.
Soil Characters: Fertile, rich in organic matter, free from soil
borne pathogens, nematodes, pests and weed seeds.
Land Preparation
Dry Nursery: Summer ploughing reduces the water requirement for
initial land preparation. Flood the field 1 or 2 days before ploughing
Wet Nursery: Add organic manures as needed. Irrigate, plow,
puddle and level the field
SRI Nursery: Seedlings raised in egg boxes filled with medium is
advantageous but conventional wet beds can be used. The addition
of organic manure is advisable.
Puddling for wet nursery
Land preparation for dry rice nursery
Land Preparation
Seed Bed Preparation for Dry nursery
• Raised beds of 120 cm wide, 15 cm high and any convenient
length should be prepared with a channel half a meter wide all
round them to facilitate drainage.
• 30kg FYM must be added in 15 m2 nursery bed.
Fig. Seed bed for dry rice nursery
Seed Bed Preparation for Wet Nursery
Leveling of seed bed surface
• Seedbeds are 2.5m wide and 8-10m
long depending on soil and slope.
• 30cm wide drainage channels are dug
around seedbeds.
• Collect the puddled soil from channel
and spread it on the seedbeds so as
to raise them.
• Level surface of seedbeds so that
water drains into the channels.
Seed Bed Preparation for SRI Nursery
• Raising seedlings in egg boxes filled with vermicompost or
organic manure is also advantageous.
• Conventional wet beds are commonly used for raising seedlings
by SRI method.
• Addition of organic manure before sowing is advisable.