Q.1 Rice plants prefer absorption of fertilizer nitrogen in the form of_______.
NO3 - NH4+ Amino acid
Q.2 Excessive N supply to plants promotes______________.
Mildew and rusts Root-rot Bacterial blight
Q.3 Good “Indicator plant” for N deficiency is__________.
Rice Wheat Maize
Q.4 The phosphorus in cell membranes is mainly present as_________.
Phospholipids ATP NADP
Q.5 Phosphorus supply to plants promotes growth of____________.
Fibres roots Lateral roots Fibre as well as lateral roots
Q.6 With an ample phosphorus supply to crops______.
Maturity period is delayed Maturity period is early Maturity period is unchanged
Q.7 Phosphorus supply to crops influences the fungal disease incidences by__________.
Increase disease incidence Decreasing disease incidence No change in disease incidence
Q.8 The optimum soil pH range for phosphorus availability to crops is_______.
5.0 - 6.0 6.0 - 7.0 7.0 - 8.0
Q.9 Phosphorus deficiency in plant appears at first in___________.
Older leaves Younger leaves Both
Q.10 Indicator plant for P deficiency indication is_______.
Maize Tomato Both
Q.11 Potassium supply to plants has a favourable effect on_____.
Protein synthesis Respiration Both
Q.12 Plants utilize potassium in the form of______.
K2 K+ Both
Q.13 Potassium deficiency symptoms in plants appear at first form________.
Lower most leaves Upper most leaves Middle leaves
Q.14 Potassium deficiency in plants in characterised by _________.
Leaf scorch Tip burn Both
Q.15 Indicator plant for monitoring K is_______.
Mustard Pea Potato
Q.16 Minerals are absorbed by the plants through_______.
Pressure flow Diffusion Active transport
Q.17 Potassium is employed in________.
Chlorophyll synthesis Protein synthesis Opening and closing of stomata
Q.18 Absorbed minerals are transported to other parts of the plants by________.
Imbibition Ion exchange Water stream
Q.19 Down word passage of mineral, from upper soil layers to lower soil strata is called______.
Percolation Leaching Weathering
Q.20 Soil nitrate is more likely to leach than ammonium due to its__________.
Small size Negative charge Being useless to flora
Q.21 Hydroponics is growing plants in__________.
Laboratory Phytotron Liquid culture medium
Q.22 Which one of the following essential elements normally obtain directly from the air.
Hydrogen Carbon Nitrogen
Q.23 Most of the plants obtain nitrogen from the soil in the form of_________.
Free nitrogen gas Nitric acid Nitrites
Q.24 Major nitrogen fixation is carried out by_______.
Chemical industries Lighting Symbiotic bacteria
Q.25 Which one does not contribute to nitrogen availability in the soil?
Decay of organic matter Electric storms Azotobactor
Number of score out of 25 = Score in percentage =
QuiZ: 1 2 3 4 6 8
Note: Having difficulties in attempting quiz or any misleading answer? please email us or comment below with indicating Test name, Thank You. Good Luck
Join Us
