Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for Competitive -paper35

MULTIPLE ques. FOR COMPETITIVE examination
(B.Sc. Agriculture)
The C/N ratio in the organic matter of furrow slice (upper 15 cm) of arable soils commonly ranges from _________ .
a 3:1 to 4:1 b 6:1 to 7:1
c 18:1 to 19:1 d 8:1 to 15:1

Which of the subsequent rotations is likely to leave soil richer in organic matter?
a Continuous sorghum b Continuous maize
c Continuous oats d Maize – Oats - Clovers

The maximum phosphorus availability in most of the soils is in the pH range;-
a 4.0 to 4.5 b 5.0 to 5.5
c 6.0 to 6.5 d 7.0 to 7.5

The deficiency symptoms are 1st observed on apical buds in case of ;-
a Zn deficiency b Mo deficiency
c N deficiency d B deficiency

The legal regulations of diminishing return was proposed by ________ .
a Mitscherlich b Wilcox
c Black man d Van Liebig

Which of the subsequent plant species produced nodules on its stem?
a Sesbania aculeata b Sesbania rostrata
c Crotolaria juncea d Sesbania acuminata

The volume of DAP and urea needed to fertilized the crop @ 120 – 60 kg N P2O5 will be;-
a 130 kg DAP and 210 kg Urea b 130 kg DAP and 260 kg Urea
c 210 kg DAP and 130 kg Urea d 260 kg DAP and 130 kg Urea

VAM belongs to the group of;-
a Bacteria b Fungi
c Algae d Actinomycetes

DRIS approach for recommending fertilizer schedule is based on ____ analysis.
a Soil sample b Water sample
c Plant sample d None of these

Which of the subsequent crops are susceptible to potassium chloride application?
a Rice and wheat b Sugarcane
c Tea and coffee d Tobacco and potato

Who is the 1st scientist attempted to classify the climate?
a Koppen b Decandole
c Troll d Hargreaves

PMA and atrazine at low concentration act as a _____ kind of antitranspirants.
a Reflectant b Film forming
c Stomatal closing d Growth retardant

Which of the subsequent 1 is more dangerous situation in dryland condition?
a Early withdrawal of rainfall b Long dry spell
c Late onset of rainfall d None of these

Areas receiving avg. annual rain fall > 1150 mm are categories as ______ .
a Dry farming b Dry land farming
c Dry land agriculture d Rainfed farming

In flat topography land _____ kind of ponds are highly suitable.
a Excavated b Excavated cum embankment
c Embankment d None of these


Few showers of rain during December and January are beneficial to the rabi crop because they;-
a Cause fall in temperature b Make the plant strong
c Protect the crops from frost d Ensure moisture for seed germination

Which of the subsequent crops is more tolerant against draught?
a Cowpea b Green gram
c Blackgram d Pigeon pea

Photothermal unit is related to
a Average monthly temperature b Day degrees
c Refelcted solar radiation d Daily sunshine hours

Long range weather forecast will help in planning of ;-
a Irrigation b Land preparation
c Cropping pattern d Pesticide application

Pyranometer is used to measure;-
a Light duration b Solar radiation
c Evaporation rate d Wind speed

Earning:   Approval pending.