Lecture 5: PLANTING METHODS Flashcards
GENERAL METHODS OF PLANTING
- direct seedling/planting
a. broadcasting
b. hill method
c. drill method
d. dibble - transplanting method
GENERAL METHODS OF PLANTING
seeds/or other planting materials are directly planted in the field
direct seedling/planting
GENERAL METHODS OF PLANTING
applicable to seeds that readily germinate
direct seedling/planting
GENERAL METHODS OF PLANTING
applicable to plants sensitive to root disturbances
direct seedling/planting
GENERAL METHODS OF PLANTING
applicable to big-seeded crops
direct seedling/planting
GENERAL METHODS OF PLANTING
applicable to stem cuttings
direct seedling/planting
GENERAL METHODS OF PLANTING
applicable to seeds that are difficult to germinate
transplanting method
GENERAL METHODS OF PLANTING
seedlings are initially raised in the nursery and later planted in the field or in greenhouses
transplanting method
GENERAL METHODS OF PLANTING
applicable to small-seeded plants
transplanting method
GENERAL METHODS OF PLANTING
applicable to rooted cuttings and grafted plants
transplanting method
FORMS OF DIRECT SEEDLING
seeds are uniformly distributed on the field e.g. rice, pechay, radish, leguminous cover crops
broadcasting
FORMS OF DIRECT SEEDLING
seeds are sown at specified distance between hills and between rows of specified distances
hill method
FORMS OF DIRECT SEEDLING
specified number of seeds are sown within rows of specified distances
drill method
FORMS OF DIRECT SEEDLING
holes with no definite spacing are dug; large enough to accommodate the seeds
dibble
FORMS OF DIRECT SEEDLING
seeds are put into the holes and covered with thin layer of soil
dibble
refers to the number of plants per unit area
population density
important to know for planning purposes; e.g. how much or how many planting materials will be needed
population density
BENEFITS OF OPTIMUM POPULATION DENSITY
- Early build up of sufficient leaf area index for optimum use of solar energy
- Early and better control of weeds
- Increase efficiency in use of land, light and water
PLANTING DENSITY DEPENDS ON:
- crop species
- soil fertility and soil mgt practices
- season (availability of water and solar radiation)
- method of propagation used
- mechanization to be employed
- cropping system to be adopted
optimum population density therefore varies with plant height, canopy shape and size, growth habit, horizontal spread of root system
TRUE OR FALSE
TRUE
adopt lower population density in _____ soils and during _____ season
fertile; rainy
adopt higher planting density for ______ plants
grafted or direct seeded
grafted
POPULATION DENSITY COMPUTATION
hill method
PD= area (m^2) x no. of plants per hill
__________________________________
S1 x S2
POPULATION DENSITY COMPUTATION
drill method
PD= area x no. of plant per linear meter
__________________________________
distance between rows