1. What is botanical name of sugarcane?
 Answer: Saccharin officinarum (Tropical cane) and Saccharum barberi (Indian cane)
2.Which chemical is commonly used for the treatment of seed borne diseases in sugarcane?
Answer: Carbendazim @ 1g/lit. of water
3. What is botanical name of wild cane of sugarcane?
Answer: Saccharum spontaneum  & Saccharum robustum
4. Which plant part is commonly used for propogation of sugarcane?
Answer: Setts
5.Name common Insecticides recommended for the control of top borer pest of sugarcane.
Answer: Chlorantraniliprole 18.5 SC @375ml/ha
6. Name common chemical used for weed control in sugarcane.
Answer: Pre-emergence application of atrazine @ 1.5-2.0 kg/ha or metribuzine @ 1.0 kg/ha followed by 2, 4-D @ 0.75-1.0 kg/ha as post emergence.
7. What is average sucrose percent range in sugarcane?
Answer: 15– 24 %
8. Which stage is most critical for irrigation of sugarcane?
Answer: Formative stage
9. Mention the duration required for the germination of sugarcane under subtropical climatic condition.
Answer: 30 – 60 Days
10. Mention duration for maturity of sugarcane in subtropical climatic condition.
Answer: 270 – 365 Days
11. Formative stage of sugarcane comes after how many days of planting.
Answer: 60 – 130 Days after sugarcane planting
12. Why Brix is used for measuring sugarcane juice.
Answer: Total soluble solid (TSS) for maturity of Sugarcane
13. What is sowing time of sugarcane in Bihar?
Answer: sugarcane is planted twice a year in October – November (autumn) and February – March (Spring).
14. What is duration of sugarcane maturity in Bihar?
Answer: 10 – 12 months
15. What is appropriate value soil pH required for sugarcane cultivation.
Answer: pH range 6.5 – 7.5
16. Mention optimum temperature requirement for sugarcane production.
Answer: 28 - 32°C
17. What is percentage average sugar recovery of sugarcane?
Answer: 11 %
18. What are major by-products of Sugarcane?
Answer Bagasse & Mollases
19. What is brix reading ranges for sugarcane maturity?
Answer: 18 – 20 %
20. Why propping & wrapping in sugarcane is done after grand growth stage?
Answer:  To prevent lodging of sugarcane.
21. What is best time for Earthing up in sugarcane?
Answer: June
22. Name the hormone used for sugarcane growth.
Answer:  Ethephon / Glyphosate
23. Name best suitable month for propping of sugarcane.
Answer: August
24. Row to Row spacing in sugarcane.
Answer: General recommendation for Row to Row distance is 90 cm. The Row to Row distance recommended 120cm for mechanization.
25. Which chemical is commonly recommended to control flowering in sugarcane?
Answer: Ethrel
26 What is Seed / Sett rate for sugarcane?
Answer approx 50 – 60 q/ha
 27. Which disease known as cancer of sugarcane?
 Answer: Red rot disease
28. Which sugarcane variety is suitable under water logged condition?
Answer: Rajendra Ganna-2 (Mid-late)
29. When to use micronutrient in soil?
 Answer: Soil Testing is recommended to know the status of soil for balance use of fertilizer and micronutrient.
30. Which micronutrient is commonly deficient in calcareous soils of Bihar?
 Answer: Zinc
31. Which micronutrient is emerging with fast rate after Zinc in calcareous soils of Bihar?
 Answer: Boron
32. Which secondary nutrient element is found deficient in sugarcane plant-ratoon system in Bihar?
Answer: Sulphur
33. What is a best technique to improve fertility status of soil?
Answer: Integrated Nutrient Management
34. How to improve nutrient use efficiency in soil?
Answer: Use of Farm Yard Manure @ 20t/ha or Vermicompost @ 5 t/ha or Biocompost @ 10 t/ha along with bio-fertilizer @ 5kg/ha. In addition use of green manure crop is recommended to improve fertility status of soil.
35. What is recommended dose of fertilizer for sugarcane plant?
Answer:  150 kg Nitrogen: 85Kg Phosphorus: 60 kg Potassium /ha for plant crop.
35. What is recommended dose of fertilizer for sugarcane ratoon crop?
Answer: 170 kg Nitrogen: 60Kg Phosphorus: 60 kg Potassium /ha for plant crop.