Which of the following plants are used as green manure in crop fields and in sandy soils?
- ADicanthium annulatum and Azolla pinnata
- BCrotalaria juncea and Alhagi camelorum
- CCalotropis procera and Phyllanthus niruri
- DSaccharum munja and Lantana camara
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Similar Questions
Select the correct option for the following matches:
$(1)$ For healthy growth of plants $(a)$ Nitrogen $(2)$ As a part of vitamins $(b)$ Manganese $(3)$ In enzymes associated with fat metabolism $(c)$ Cobalt $(4)$ For the activity of phosphatase enzyme $(d)$ Magnesium
| $(1)$ For healthy growth of plants | $(a)$ Nitrogen |
| $(2)$ As a part of vitamins | $(b)$ Manganese |
| $(3)$ In enzymes associated with fat metabolism | $(c)$ Cobalt |
| $(4)$ For the activity of phosphatase enzyme | $(d)$ Magnesium |
Medium
View Solution$A$: Plants absorb nitrogen from the soil in the form of salts.
$R$: Nitrogen is essential for the synthesis of proteins and nucleic acids.
$R$: Nitrogen is essential for the synthesis of proteins and nucleic acids.
Medium
View SolutionMatch the following and choose the correct combination from the options given.
Column $I$ Column $II$ $a.$ Potassium $(i)$ Germination of pollen grains $b.$ Molybdenum $(ii)$ Involved in synthesis of auxin $c.$ Boron $(iii)$ Involved in stomatal movement $d.$ Zinc $(iv)$ Constituent of ferredoxin $e.$ Sulphur $(v)$ Component of nitrate reductase
| Column $I$ | Column $II$ |
| $a.$ Potassium | $(i)$ Germination of pollen grains |
| $b.$ Molybdenum | $(ii)$ Involved in synthesis of auxin |
| $c.$ Boron | $(iii)$ Involved in stomatal movement |
| $d.$ Zinc | $(iv)$ Constituent of ferredoxin |
| $e.$ Sulphur | $(v)$ Component of nitrate reductase |
Medium
View SolutionIdentify the correct pair:
Column-$I$ Column-$II$ $P$. Phosphorus $I$. Splitting of water to liberate oxygen during photosynthesis $Q$. Potassium $II$. Constituent of cell membranes and all nucleotides $R$. Magnesium $III$. In more abundant quantities in the meristematic tissue,buds,leaves,and root tips $S$. Manganese $IV$. Constituent of the ring structure of chlorophyll and helps to maintain the ribosome structure
$P - Q - R - S$
| Column-$I$ | Column-$II$ |
| $P$. Phosphorus | $I$. Splitting of water to liberate oxygen during photosynthesis |
| $Q$. Potassium | $II$. Constituent of cell membranes and all nucleotides |
| $R$. Magnesium | $III$. In more abundant quantities in the meristematic tissue,buds,leaves,and root tips |
| $S$. Manganese | $IV$. Constituent of the ring structure of chlorophyll and helps to maintain the ribosome structure |
$P - Q - R - S$
Medium
View SolutionAmmonia provided to crop plants in the form of urea is industrially fixed by . . . . . . .
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