Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for Competitive -paper34

MULTIPLE ques. FOR COMPETITIVE examination
(B.Sc. Agriculture)
In a waterlogged soil the concentration of _______ is high.
a Ethane b Methane
c Carbon dioxide d Carbon monoxide

Ammonia current in the soil can be lost in significant volumes from _____ .
a Acid soils b Alkaline soils
c Both of these d None of these

Barley, rape and cotton are ______ salt tolerant.
a High b Low
c Medium d None of these

The option of chemical amendments may be influenced by the _____ needed for reaction in soil.
a Cost b Quantity
c Quality d Time

Gypsum, an amendment applied to alkali soils belongs to _____ kind.
a Acid former b Low solubility
c Soluble Ca-salt d None of these

Total area under salt affected soil in India is approximately;-
a 7.0 M ha b 1.0 M ha
c 14.0 M ha d 65 M ha

Drip irrigation is moist suitable for ;-
a Acid soil b Alkaline soil
c Saline soil d All the above

Ridge sowing is recommended on salt affected soil, which is the safest site for seed sowing?
a Crown of the ridge b Mid way on slope of ridge
c Bottom of ridge d All of these

According to USDA classification, the soil is categories as moderately alkaline when ESP value is ______ .
a 25 - 30 b 30 - 50
c 15 - 25 d > 50

Poor soil physical properties of sodic soil associated with;-
a High concentration of Ex. K+ b High concentration of Ex. Na+
c High concentration of Ex.Ca++ d High pH

The flour corn is also known as ________ .
a Zea mays amylacea b Zea mays indurate
c Zea mays everta d Zea mays tunicata

Hybrid rice for commercial production was 1st evolved in;-
a India b China
c Japan d USA

The optimum temperature range for sowing of wheat crop is;-
a 10 to 15 0C b 15 to 20 0C
c 20 to 25 0C d 25 to 30 0C

The optimum plant population of sorghum can be found by using seed rate;-
a 9 to 10 kg/ha b 12 to 15 kg/ha
c 15 to 18 kg/ha d 18 to 20 kg/ha

Which 1 of followings is incorrect pair?
a Wheat : Picking b Jute : Retting
c Groundnut : Pegging d Maize : Tasselling

All the grain legumes have a high rate of respiration because of;-
a Carbon mechanism b More vegetative growth
c Indeterminate d Pod position

Interculture operation in groundnut crop should be avoided at;-
a Flowering stage b Seedling stage
c Pegging stage d Branching

Castor belongs to the family;-
a Euphorbiaceae b Leguminosae
c Cruciferae d Compositae

Adsali sugarcane crop planted during the months;-
a February – May b December - January
c January - April d July – August

Chipson is a variety of;-
a Tapioca b Potato
c Elephant foot d Sweet potato

Earning:   Approval pending.