in all types of plant propagation activities, maintenance of sanitation reduces the frequency and...
TRANSCRIPT
• In all types of plant propagation activities, maintenance of
sanitation reduces the frequency and severity of arising
problems like ill drainage, pest and diseases.
• Drainage help remove of excess water from the growing media
and facilitate sufficient aeration to growing plant root system.
• Pruning helps remove of excessive live or dead, diseased or
pest infested branches from nursery plants.
Introduction
Sanitation is process of formulation and application of measures
designed to protect plant health.
Sanitation Treatments:
•Sterilization of propagation media, tools and implements used for
nursery plant production. Chemicals used for sterilizations are
Chloropicrin, Formaldehyde, Methyl bromide.
•Fumigation with chemicals is most useful for destroying harmful
bacteria, fungi, insects and nematodes.
•Drenching medium with certain fungicides is useful for eliminating
pathogens from the soil and other growth medium
Sanitation in Plant Nursery
Drainage is removing excess water from growing media to facilitate
aeration to growing plant roots.
Advantages of Drainage
•Water logging in pot or seed bed can be avoided and plant roots
get proper aeration.
•After heavy rains, soil comes in tilth earlier and timely agricultural
operations can be carried out.
•Soil micro-flora and fauna which enrich organic matter, flourishes
due to aeration and warmth in the soil.
Drainage
• Desirable chemical reactions take place in growing media
and nutrient become available to the plants.
• Proper root development in plant which accelerates nutrient
absorption.
• Seeds germinate faster with healthy crop stand which resist
pest and diseases attack.
• Weed growth can be checked by timely weeding and inter
culture operations.
• Good drainage permits the removal of many toxic chemicals
and salts thereby reducing damage to the crops.
Advantages of Drainage
Pruning is removal of dead, pest and disease infested branches
from nursery plants.
Objectives of Pruning Nursery Plants:
•Nursery plants are pruned to promote and maintain healthy plant
growth, through the removal of dead and excess branches.
•Pruning of nursery plants can improve marketable quality of
nursery stock, due to uniform shape, clean and even growth.
•Plant can be made more compact for exhibition display and
transport.
Pruning of Nursery Plants
Heading Back Pruning:
•Apical shoots are pruned to facilitate balanced growth of
growing plant / tree.
•Dead, diseased and pest infested branches are pruned.
•Heading Back increases the density of branches and makes
the plant more sturdy.
Thinning Out Pruning
•Complete branch is pruned to maintain limited number of
branches. It is heavy type of pruning. Thinning will make a plant
grow taller and more open.
Types of Pruning