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WorksheetsDay 52-Nov 13-worksheet-Diploma-Soil,plant ,water relation 1
Total questions: 15
Worksheet time: 11mins
Crop period refers to the time between:
First watering and last watering
Sowing and harvesting
Seed preparation and field preparation
Nutrient application and harvesting
Kharif crops are sown with:
Northeast monsoon
Southwest monsoon
Winter rainfall
Artificial irrigation only
Zaid crops are grown during:
October to March
April to September
March to June
June to November
The most suitable irrigation water class is:
C2S2
C1S1
C3S3
C4S1
Medium salinity water (C2) has EC between:
0 to 250
250 to 750
750 to 2250
Above 2250
Permanent wilting occurs when:
Plant regains strength after irrigation
Plant cannot regain strength even after watering
Soil is saturated
Soil reaches field capacity
Kharif crops require 2 to 3 times more water than rabi crops.
True
False
Assertion–Reason. Assertion (A): Field capacity is lower for clay than for gravel. Reason (R): Clay soils have smaller pores that retain more water. Choose the correct option.
A and R true; R explains A
A and R true; R does not explain A
A true; R false
A false; R true
Crops grown only using rainfall are called (a) crops.
Soil rich in calcium carbonate is known as (a) soil.
The upper limit of capillary water is the (a) capacity.
The depth of soil in which roots spread is called (a)
Rabi area = 1200 ha and Kharif area = 800 ha. Crop ratio = Rabi area / Kharif area. What is the crop ratio?
(a)
Numerical converted to MCQ. Measured EC = 600 micromhos per cm. 600 lies between 250 and 750, giving the irrigation water salinity class. What is the EC classification?
(a)
dw (depth between FC and OMC) = 4 cm; Cu (consumptive use) = 8 mm/day = 0.8 cm/day. What is the frequency of irrigation?
(a)
