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31.

A good crop of potato yielding about 400 q/ha on an average removes _______ N + P2O5 + K2O kg/ha, respectively:

A.	170-180 + 100 + 250	B.	170-180 + 25 + 250
C.	170-180 + 50 + 125	D.	170-180 + 25 + 100

32.

Zero tillage system ws first used successfully in 1950 in pasture renovation in:

A.	Germany	B.	Japan
C.	United Kingdom	D.	U.S.A.

33.

A lentil crop grown with improved package of practices may record the yield upto t/ha:

A.	1.0 - 1.5	B.	3.0 - 3.5
C.	1.5 - 2.0	D.	2.0 - 2.5

34.

A main shortcoming that was observed during green revolution:

A.	Pulse crops were neglected	B.	Paddy was neglected
C.	Big farmer were neglected	D.	Use of fertilizers neglected

35.

A millet crop is:

A.	Sugarcane	B.	Bajra
C.	Barley	D.	Jute

36.

A minor portion of the phosphorus absorption capacity of soils originates from:

A.	Sodium bicarbonate	B.	Sodium carbonate
C.	Calcium oxide	D.	Calcium carbonate

37.

A screen which is used to measure the temperature of atmosphere is know as:

A.	Clark screen	B.	Symon's screen
C.	Thermocouple	D.	Stevenson's screen

38.

A short duration crop in between two main crops is termed as:

A.	Cash crop	B.	Catch crop
C.	Companion crop	D.	Ephemeral

39.

A tuber represents:

A.	Enlarged underground root	B.	Enlarged underground stem
C.	Enlarged underground nodules	D.	None of these

40.

A weed that spreads asthma is:

A.	Colotropis	B.	Parthenium
C.	Kanuch weed	D.	Common grass weed