Series OSS Code No. 70
AGRICULTURE (Theory)
Time allowed : 3 hours Max. Marks: 70
General Instructions :
(i) All questions are compulsory.
(ii) Marks for questions are indicated against each of them.
1. Mention five major classes of field crops of India with one crop as example from each group. Also give one important characteristic Of each group. 5+5
2. (a) Match the following:
(i) Azolla (1) Fungicide
(ii) Boron (2) Biofertilizer
(iii) 2, 4-D (3) Insecticide
(iv) Endosulphan (4) Micronutrient
(v) Thiram (5) Herbicide
(b) What do you understand by the following ? Explain in brief. 5
(i) Soil fertility
(ii) Natural resources
(iii) Puddling
(iv) Interculturing
(v) Minimum tillage
Fill In The Blanks:
(i) Soluble Sodium percentage in sodic soils is >____________ %.
(ii) Crop’s over growth is called ____________
(iii) Acidic soils are amended by ____________
(iv) Late Blight is a disease of ____________
(v) Rhizobium is a ____________
(vi) Rice takes up nitrogen mostly in the form of ____________ion.
(vii) Atmospheric air contains ____________% nitrogen.
(viii) C/N ratio of normal soil is 10:1 to 12: ____________.
(ix) Arrangement of soil particles is called soil ____________.
(x) Ergot is a disease of ____________
4. Give the following informations on the two crops, Pigeon-pea and
wheat : 2x5
Pigeon pea
(i) Family name
(ii) Botanical name
(iii) Seed rate/ha.
(iv) Nutrient (N, P2O5) needs
(v) Name one major insect
Wheat
(i) Family name
(ii) Botanical name
(iii) Seed rate/ha.
(iv) Most critical stage for irrigation
(v) Name two varieties of Green Revolution
5. Describe in brief five factors to be considered while laying out a fruit or a vegetable nursery. 10
6. Fill in the blanks :
(i) ____________is a plant growth promoting substance.
(ii) Ideal pH of juice extract of fruits for jelly preparation is____________
(iii) ____________is the botanical name of mango.
(iv) Hybrid polyanthas are also called____________
(v) ____________Mandarin is widely grown in North-East provinces of India.
(vi) Allahabad Safeda is a variety of ____________
(vii) Lye peeling is related to fruit ____________
(viii) Banana belongs to family ____________
(ix) Lemon and lime are commonly propagated by budding ____________.
(x) The science of production of vegetables is called ____________
7. Give the specific information asked for, for the following two crops 2x5
Potato
(i) Family name
(ii) Botanical name
(iii) An important variety
(iv) Method of propagation
(v) Breaking dormancy of seed potato
Gladiolus
(i) Place of origin
(ii) Family name
(iii) Processing of flowers and spikes for market
(iv) An improved variety
(v) Method of propagation