Plants will take nitrogen in the form of ammonium ion and nitrate ion with equal ease
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36%
True
64%
False
Lattice hole theory was given by (IARI Ph.D)
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67%
Page and Baver
19%
Bray R.H.
13%
Marshall
2%
Balue
ENR for saline soils is
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50%
Less than 1
40%
More than 1
8%
Equal to 1
2%
None of the above
Khaira disease in rice first reported by
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84%
Y. L. Nene
6%
Phogot
6%
Bijay Singh
5%
Leather
Usar and Kallar related to
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43%
Sodic soils
26%
Saline soils
25%
Saline-Sodic soils
6%
Calcareous soils
Dominant mineral in Salt affected soils of Indo-Gangetic plains
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27%
Kaolinite
19%
Vermiculite
38%
Illite
16%
Saponite
Many students are asking about ENR (It's Electro neutrality ratio) Earlier salt affected soils categorised into saline and sodic based on electro neutrality ratio / If the pH of the soil is less than 8.2 and ENR is less than which is Saline soil and similarly if the ENR is more than one and pH of the soil is more than 8.2 that soil considered as Sodic soil..
Blue vitriol
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80%
Copper sulphate
10%
Zinc sulphate
6%
Iron sulphte
5%
Manganese sulphate
Salt concentration in saline soils is
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26%
More than 0.2 percent
13%
More than 0.3 percent
27%
More than 0.4 percent
34%
More than 0.1 percent