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Clays are complex alumino silicates which are constituted of plate like units and therefore possess considerable amount of surface area, both external and internal. Considerable amount of internal surface occurs between the plate like units especially of smectites and vermiculites. The minute (size 1 micron or less) are known as micelle (microcell).
Rusts are among the most important fungal diseases of wheat worldwide. Black rust of wheat is caused by
Basin lister is a tillage implement used for
Tobacco plant grows and matures rapidly when average temperature is about:
A food contains 5 grams of carbohydrate, 10 grams of fat and 5 grams of protein. How many Calories (kcal) does this food provide?
Which one the following sets shows the correct soil order in sequence of increasing age?
______ open its stomata during night and closes during day time
A weed with short-lived blue coloured flowers is
Some plants are able to excrete the absorbed salts through specialised structures
A. Stomata
B. Hydathodes
C. Guard cells
D....
Blue colour tag for which category of seed under seed production/generation system?
Match List I with list II