Q)
(chatquestion)...1818.
Nitrogen is mainly absorbed in the form of
(1) nitrate
V4 all of these
(2) nitrite
1832. Assertion
Reason (E
(3) ammonium
1819.
Which form of nitrogen enters in the plants ?
(1) Bot
(2) Bot
(3) (A
(1) Free form
(4) Oxidised form
(2) Fixed form
(3) Reduced form
1820.
Which of the following is not caused by the deficiency of minerals ?
(1) Chlorosis
(4) (A
Necrosis
(2) Etiolation
(3) Shortening of internodes (4)
1833. Potas
1821. Name the technique used by researchers to explore the plant nutrient deficiencies.
I.
(1) Sun exposure
(4) Hydroponics
(1)
(2) Hyperbasic chambers
(3) Crop rotation
1822.
Premature leaffall is a disease caused due to the deficiency of
(1) phosphorus
1834. Fill
I.
(4) potassium
(2) nitrogen
(3) calcium
II
Which ofthe following is not considered as a trace element (micronutirent) in the plant ?
1823.
(1) MoO,
(4) K*
(3) Mn*2
(2) Cu2
Name the minerals responsible for maintaining cation-anion balance in the plant cells.
(2) Ch and K
1824.
(3) Ca2 and Mg?
(4) Ch and Mg2
(1) K and Fe
fthe following is considered as partial mineral element in plants ?
horus
(3) Nitrogen
(4) Iron
183-
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