Flashcards
Class 8, Chapter 1 - Crop Production and Management | NCERT
Which of those are rabi crops?
maize
wheat
cotton
mustard
soyabean
gram
pea
paddy
Which are winter crops?
Kharif
Rabi
Put in order steps of plant production cycle.
sowingweedingadding manures and fertilizersthreshingharvestingpreparation of soilstorageirrigation
preparation of soilsowingadding manures and fertilizersirrigationweedingharvestingthreshingstorage
Exposing inner layers of soil to air is called:
ploughing
What is tilling?
leveling soil surface
adding moisture to the soil
making soil surface compacted
removing rodents from the soil
Seed drill and funnel are used for:
sowing
weeding
fretilization of soil
ploughing
True or false?
Manure is natural and organic substance.
True or false?
There are only synthetic fertilizers.
True or false?
Fertilizers are substances providing only praticular nutrients.
Which of those are traditional irigation methods?
Dhekli
Drip system
Sprinkler system
Moat
Rahat
Chain pump
Dhekli
Moat
Rahat
Chain pump
Crop rotation is a method used for:
replenish soil nutrition
aerate soil
manage optimal moisture level of soil
How do we call undesirable plants that grow around crops?
weeds
Which fertilization method is considered better?
Fertiliser
Manure
True or false?
Manure is relatively less rich in plant nutrients.
True or false?
Fertiliser is made in process of decomposition of plants and cattle dung.
True or false?
Most expensive and most efficient irrigation method is a drip system.
What is the best time to remove weeds from field?
right after they germinate
before they produce flowers and seeds
week before crops harvest
before they produce flowers and seeds
How do we call chemicals used to get rid of weeds?
weedicides
True or false?
Chemicals used to get rid of weeds may be harmful for person spraying them over the field.
True or false?
Grains can be stored in granaries or siloses.
True or false?
Kharif Crops in India are grown from June to September.
True or false?
Damaged seeds do not float on the water.
True or false?
Pulses and vegetables are grown during winter season.
Process of separating seeds from the chaff is called:
threshing
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