Class 9

Question 1 What is weed? How weeds affects growth of crop plant? Question 2 What are the features of weeds? Question 3 How can we control weeds? Question 4 What is a pest?Enlist various pests of crop plant? Question 5 How do insect pest attack crop plant? Question 6 Name few weeds of Kharif and Rabi season? Question 7 How are diseases transmitted to crop … [Read more...] about Crop Protection Management

Question 1 What is genetic manipulation? Question 2 What is plant breeding? Question 3 What is DNA recombination technology? Question 4 What are the various steps of genetic improvement? Question 5 How can hybridisation produce an improved variety of a crop? Question 6 Define the term acclimatization?  Question 7 What are the objectives of crop … [Read more...] about Genetic Manipulation And Crop Improvement

Question 1 What is irrigation? Question 2 Why irrigation of crops is necessary? Question 3 What are the various irrigation systems adopted in India? Question 4 What is mixed cropping? Question 5 State few advantages of mixed cropping? Question 6 Define intercropping with example? Question 7 Write few differences between mixed and intercropping? Question 8 … [Read more...] about Irrigation, Mixed Cropping, Intercropping and Crop Rotation

Question 1 What are macro and micro nutrients in plants? Give examples? Question 2 Name the three most important nutrients needed for the growth of plant? Question 3 From do the plants get carbon, oxygen and hydrogen? Question 4 How do plants get nutrients? Question 5 Differentiate between manures and fertilizers? Question 6 What are the advantages and … [Read more...] about Nutrient management , Manures and Fertilisers

Question 1 What do we get from cereals, pulses, fruits and oil seed crops? Question 2  On what factors does successful crop production depends? Question 3 Why is it necessary to increase production of both, plants and animals? Question 4 Name 2 crop season in northern India?Give example of each? Food is required for growth, development and body repair. It also … [Read more...] about Crop Production