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Hydroponic Gardening
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Growing fruit and vegetables hydroponically
Practical daily questions or queries of hydroponics lovers
Current Hydroponics and Indoor Gardening Market Growth as well as Trends

21.

Reclamation disease due to copper dificiency occurs in plants grown on newly reclaimed acid soil:

A.	Histosols	B.	Alfisols
C.	Aridosols	D.	Ultisols

22.

Trap crops refer to:

A.	Crops grown around the main crop, which is more susceptible to insect pest and diseases than the main crop	B.	Crops which are resistant to pest and diseases
C.	Crops efficient in trapping solar radiation	D.	Crops efficient in trapping rainfall

23.

2, 4-D is a herbicide:

A.	Selective	B.	Non-selective
C.	Contact	D.	Selective and systemic

24.

What is the effect of potassic fertilizers?

A.	It makes the plants more resistant to disease	B.	It improve the grain quality
C.	It makes the plants susceptible to disease	D.	All of the above

25.

2, 4-D is an important herbicide of:

A.	Pulses	B.	Oilseed crop
C.	Small grain crop	D.	Millet

26.

2, 4-D is the :

A.	Translocated herbicicide	B.	Contact herbicide
C.	Contact herbicide as well as translocated herbicide	D.	All of above

27.

The most sensitive stages of sunflower to water stress lie between:

A.	Germination and seedling	B.	Germination and flowering
C.	Seedling and flowering	D.	Flowering and grain filling

28.

A basal dose of phosphorus at ______ g/m2 to tobacco nursery area has been recommended:

A.	5.5 - 6.5	B.	7.5 - 8.0
C.	9.0 - 9.5	D.	10.0 - 10.5

29.

A cloud type that occurs in low height in the atmosphere is:

A.	Stratus	B.	Cumulus
C.	Nimbus	D.	Cumulo-nimbus

30.

A farmer is to select suitable crops for a drought prone un-irrigated area. Which one of the following groups of crops should be chosen for mixed cropping?

A.	Sesame, maize, oats	B.	Sorghum, whet
C.	Sesame sorghum/pearl millet, niger	D.	Maize, upland rice, berseem