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461.

The optimum cardinal temperature points for germination of rice seeds are:

A.	18 - 20?C	B.	20 - 22?C
C.	30 - 32?C	D.	37 - 39?C

462.

Which of following stages of a crop are more prone to weed competition?

A.	Germination to seedling	B.	Vegetative
C.	Reproductive	D.	Maturity

463.

Which grain is said to be poor man's food?

A.	Ragi	B.	Bajra
C.	Maize	D.	Jowar

464.

The optimum pH range for sunflower is:

A.	5.5-7.5	B.	6.5-8.5
C.	7.5-9.5	D.	7.0-9.0

465.

The optimum plant population for cotton has been estimated at _____ plants/ha:

A.	25,000 - 50,000	B.	30,000 - 60,000
C.	50,000 - 80,000	D.	80,000 - 1,00,000

466.

The optimum plant population for mustard is around:

A.	One lacs	B.	Two lacs
C.	Three lacs	D.	Four lacs

467.

The optimum population of hybrid cotton varieties is around ______ plants/ha:

A.	10,000	B.	20,000
C.	30,000	D.	40,000

468.

Machete is effective against:

A.	Annual grass	B.	Broad-leaved weed
C.	Both (a) & (b)	D.	Narrow-leaved weed

469.

The optimum seed rate of soyabean for normal planting is ______ kg/ha.

A.	50-60	B.	60-70
C.	70-80	D.	80-90

470.

Which fertilizer is cheaper?

A.	Urea	B.	SSP
C.	Groundnut cake	D.	Murrate of potash