Loading PDF...
Chapter Analysis
Intermediate12 pages • EnglishQuick Summary
The chapter 'Improvement in Food Resources' in Class 9 Science explores enhancement methods in agriculture to meet the increasing food demand of a growing population. It covers crop variety improvements through breeding and genetic methods, crop production management including nutrient and water management, and protection management against pests and diseases. Additionally, it delves into animal husbandry, discussing the importance of scientific practices in poultry, fish, and cattle farming to boost productivity and economic gain while maintaining ecological sustainability.
Key Topics
- •Crop Variety Improvement
- •Nutrient Management
- •Water Management in Agriculture
- •Crop Protection Management
- •Animal Husbandry Practices
- •Fish and Poultry Farming
- •Organic versus Conventional Farming
- •Sustainable Agricultural Practices
Learning Objectives
- ✓Understand the methods for improving crop yields through variety improvement.
- ✓Explore nutrient and water management strategies in crop production.
- ✓Evaluate the importance of pest and disease management for crops.
- ✓Analyze the methods of animal husbandry for improving productivity.
- ✓Examine the benefits and challenges of organic farming.
- ✓Recognize sustainable practices necessary for long-term agricultural productivity.
Questions in Chapter
Explain any one method of crop production which ensures high yield.
Page 151
Why are manure and fertilizers used in fields?
Answer: Manure and fertilizers are used to provide essential nutrients to the soil, enhancing its fertility and thereby improving crop yield.
Page 151
What are the advantages of inter-cropping and crop rotation?
Page 151
What is genetic manipulation? How is it useful in agricultural practices?
Page 151
How do storage grain losses occur?
Page 151
How do good animal husbandry practices benefit farmers?
Page 151
What are the benefits of cattle farming?
Page 151
For increasing production, what is common in poultry, fisheries and bee-keeping?
Page 151
How do you differentiate between capture fishing, mariculture and aquaculture?
Page 151
Additional Practice Questions
What role does irrigation play in crop production?
mediumAnswer: Irrigation provides water to crops at crucial stages of growth, enhancing yield even in areas with insufficient rainfall.
Discuss the benefits of using organic farming methods.
mediumAnswer: Organic farming minimizes the use of chemical fertilizers and pesticides, promoting soil health and environmental sustainability, while producing safer food products.
How can livestock integration into crop farming benefit agricultural productivity?
hardAnswer: Integrating livestock provides manure for crops, reduces the dependency on chemical fertilizers, and allows for diversified farming income with the production of milk, meat, and wool.
Why is crop variety improvement important for future food security?
easyAnswer: Crop variety improvement ensures high yield, resilience to climate variations, and resistance to pests and diseases, which is critical for stable food supply amidst changing environmental conditions.
Evaluate the impact of the Green Revolution on Indian agriculture.
hardAnswer: The Green Revolution led to a significant increase in food grain production through the use of high-yielding crop varieties, chemical fertilizers, and improved irrigation but also caused environmental issues and increased the disparity between rich and poor farmers.
NCERT Exemplar
AvailablePractice with NCERT Exemplar problems and solutions for this chapter. Exemplar problems are designed to help you master the concepts with advanced-level questions.
View Exemplar