ARUNACHAl. PRADESH PUBLIC SERVICE COMMISSION
SOIL SCIENCE PAPER -II
Time: 3 (Three) hours Full marks: 100
(Group is compulsory. Attempt any FOUR questionsfrom Group
GROUP-A.
(This Group is COMPULSORy)
Q.l. Answer any 10 ofthe following questions. 2x10=20 What is 'Organic Farming? Write in short. Draw a distinction between 'Weather Climate'? What are the different types of cloud precipitation? What do you mean by the term' conservation irrigation'? Explain. State the causes of soil erosion. Write the characteristics of sodic soils. What do you mean by consumption? State in brief. What are the major functions of green manuring crops? Describe what do you mean by 'Farm mechanization'. What is water conservation? State in your own words..
What is soil tilth? List the different types of soil tillage implements.
What do you mean by 'nutrient antagonism'?

GROUP-B
(Answer any Four.) Q.,2. Attempt any 8 [eight] 2.5x8=20 Define marketing margin and marketing cost. State the control measures of weeds that commonly found in oilseed crops. Conservation agriculture vis-a vissustainability of production system. What is insecticide? How it is classified? Briefly discuss w]:lat you mean by 'Nematodes'? Distinguish between the terms 'Farm and Firm. Write down the different cost concepts used in farm Management? State what do you understand by nitrogen fixation? What is Soil-Plant-Water relationship? Write a note on Drainage engineering.
Q.3 Write short notes on any 4 (four) ofthe following 5x4=20
Farm Record Books
Role ofAVaids in extension education
Plant protection equipments
Soil pollution

Integrated Pest Management
Agro forestry system

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Q.4. Attempt any 5(five) 4x5=20
Describe the different types of bulky organic manures.
What practices will you suggest for preventing spread of weeds?
What do you mean by winds-break? Describe why it is important.
Describe the mechanism of mineral absorption?
What are the climatic factors which effect fruit production? Briefly discuss.
Name two common pests of Banana and describe the methods of their control.
What is storage? State the different system of storage used in Arunachal Pradesh.


Q.5. Attempt any 2 10x2=20
Define marketing? Give a classification of markets prevailing in your state. What do you mean by farm labour? Explain how farm labour efficiency can be increased? What is IC engine? Describe the working mode of an IC engine.
Q. 6. Explain any 4(four) ofthe following 5x4=20
Cost of production Regulated market Inter cropping and relay cropping Role of micro organisms in fertility build up in soil Farm Planning in relation to resource availability. Criteria for organic farming and its scope in relation to increasing population.
Q. 7 Attempt any 2(two) 10x2=20
Define biological control in relation to plant diseases. Describe the control measures of early blight of potato with biological approach. What is shifting cultivation? How would you like to suggest for a remedial and alternative to shifting cultivation for sustainable utilization of resources. What is Agricultural marketing cooperation? State the role of government in promoting the agricultural marketing in Arunachal Pradesh.
Q. S. What are the plant growth regulators? State at least 10 of them and narrate about
their use in horticulture. Write the importance of photoperiodism in flowering.
Q. No.9. State the important characteristics of weed plants. What are crop bound, crop associated and season bound weeds? Discuss the biological methods of weed control.
Q. No. 10. Define essential plant nutrients. Describe the deficiency symptoms and functions
of plant nutrients.


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