NBSE Class 11 Question Paper 2022 Agriculture

Total number of printed pages : 2 NB-XI/AG(V)/1 2022 Agriculture (Vocational) Total marks : 50 Time : 2 hours General instructions : i) Approximately 15 minutes is allotted to read the question paper and revise the answers. ii) All questions are compulsory except Q. nos.18 to 23 where general option is given. iii) The question paper consists of 23 questions. iv) Marks allocated to every question are indicated against it. N.B: Check to ensure that all pages of the question paper are complete as indicated on the top left side. 1. Choose the correct answer from the given alternatives: 10x1=10 i. The soil for a nursery should preferably be (a) clayey (b) sandy (c) sandy loam (d) black ii. Sphagnum moss is commercially used as a rooting medium in (a) air layering (b) budding (c) grafting (d) cutting iii. A practice to support plants to grow straight and saving them from bending or lodging is called (a) watering (b) weeding (c) staking (d) shading iv. Bryophyllum is propagated by (a) root cutting (b) stem (c) leaf cutting (d) seeds v. Inferior or older plants are rejuvenated into superior or new ones by which of the following methods? (a) hardwood cutting (b) approach grafting (c) veneer grafting (d) top working vi. Which of the following is a technique, for growing plant tissues isolated from a parent plant in an artificial medium and controlled environment? (a) protected culture (b) soiless culture (c) tissue culture (d) hydroponic vii. Soil is injurious to most crops, if EC (milli mohs/cm) is (a) > 2.0 (b) > 3.0 (c) > 4.0 (d) > 5.0 viii. Pinching in a plant promotes (a) plant height (b) flower size (c) bushy growth (d) root growth ix. The word ‘communication’ comes from a Latin word which means (a) to try (b) to give (c) to take (d) to share

-2- NB-XI/AG(V)/1 x. Which short cut key is used to create a new document? (a) ctrl+c (b) ctrl+n (c) ctrl+m (d) ctrl+d Answer the following questions in one word or one sentence: 2. Define soil solarisation. 1 3. What is a growing medium? 1 4. List any two ingredients required to prepare compost. 1 5. Name a plant which is propagated through tuberous root. 1 6. What are prime natural components in selection of site? 1 7. Define weeding. 1 8. Mention one importance of grooming. 1 9. What is green economy? 1 Answer the following questions in 20-50 words: 10. What is floriculture? 2 11. Differentiate between temporary and permanent nursery. 2 12. What are plant bio regulators? Name one plant bio regulators. 1+1=2 13. Differentiate between sexual and asexual methods of plant propagation. 2 14. Write any two advantages of grafting. 2 15. Differentiate between de-shooting and disbudding. 2 16. What is budding? 2 17. List two tips for practicing the four steps of effective time management. 2 Answer any four from the following questions in 60-100 words: 18. List any four precautionary steps taken during seed sowing and planting. 4 19. Explain briefly the procedure of air layering. 4 20. Explain in brief any four garden tools. 4 21. What is soil? Write any three importance of soil. 1+3=4 22. Explain in brief the four importance of planning or preparing a business plan. 4 23. What is a nursery? Write any three importance of nursery. 1+3=4 ***********************************