CSS :: Soil Science

@ : Home > Agriculture > Soil Science

For students in search of

231.

Montmorillinite, illite and kaolinite are:

A.	Kinds of soil	B.	Clay minerals
C.	Kinds of protozoa present in soil	D.	Kinds of soil in U.S.A.

232.

More than 2.3 value of nutrient index indicates:

A.	Average productivity of soil	B.	Adequate fertility of soil
C.	Adequate productivity of soil	D.	None of them

233.

Most of the plants are likely to suffer if the soil volume occupied by air is less than ______ per cent.

A.	20-25	B.	15-20
C.	12?15	D.	10?11

234.

Most resistant mineral present in soil is:

A.	Mica	B.	Hornblende
C.	Quartz	D.	None of above

235.

Muratt of potash contains:

A.	40%K2O	B.	36%K2O
C.	50%K2O	D.	None of the above

236.

Mycorrhiza-infected plants show better ability of absorption of the nutreients, especially:

A.	Iron	B.	Manganese
C.	Potassium	D.	Phosphorus

237.

Mycorrihiza-infected plants show better growth than uninfected plants, especially on:

A.	Low fertility soils	B.	High fertility soils
C.	Marshy soils	D.	Desert soils

238.

N, P, K percent in cotton seed cake is:

A.	4, 1.9, 2	B.	1.9, 2, 4
C.	4, 1.9, 1.7	D.	1.7, 4, 1

239.

Na Ai Si2O8 is the formula of:

A.	Anorthite	B.	Albite
C.	Mica	D.	Illite

240.

Which one of the following pairs is not correctly matched?

A.	Expanding type clay minerals - Higher water holding capacity	B.	Hight calcium content in soil - Iron chloride
C.	Water inundated soils - High nitrogen mineralization	D.	Sandy soils - Split application of fertilizers