Soil Science

Soil Science
The nutrient particularly influencing root growth is _______?
Nitrogen
Zinc
Organic
Phosphorus
Author: rikazzz Comment
Soil Science
Boron concentration is irrigation water is considered safe only upto _______?
0.7 ppm
2 ppm
1.5 ppm
3 ppm
Author: rikazzz Comment
Soil Science
Which bacteria convert nitrite to nitrate _______?
Pseudomonas
Nitrobacter
Frankia
None of these
Author: rikazzz Comment
Soil Science
Which compound decay slowly _______?
fats
Lignin
Amino acid
Cellulose
Author: rikazzz Comment
Soil Science
The reaction of Na2 CO3 salt is _______?
Alkaline
Acidic
Neutral
None of these
Author: rikazzz Comment
Soil Science
Material deposited by the wind is called _______?
Colluvial
Regolith
Alluvium
Eolian
Author: rikazzz Comment

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