NCERT Solutions for Class 9 Science Chapter 15
Important NCERT Questions
Improvements in Food Resources
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Exercises Questions
Page No-214
Questions No-2
Why are manure and fertilizers used in fields?
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Manure:
1. Nutrient-Rich Composition: Comprising animal waste and bedding materials, manure contains essential nutrients like nitrogen (N), phosphorus (P), potassium (K), and micronutrients crucial for plant growth.
2. Soil Enhancement: Improves soil structure, moisture retention, and microbial activity, thereby enhancing soil fertility and supporting healthy plant growth.
3. Organic Matter Enrichment: Adds organic matter to the soil, gradually releasing nutrients and improving long-term soil health, making it more resilient and sustainable.
Fertilizers:
1. Targeted Nutrient Supply: Tailored formulations deliver specific nutrients lacking in the soil, ensuring plants receive the necessary elements for optimal growth.
2. Immediate Nutrient Availability: Quickly provides plants with required nutrients in an easily absorbable form, addressing deficiencies and supporting vigorous growth.
3. Customized Application: Can be precisely formulated to suit different crop requirements and growth stages, optimizing nutrient uptake and plant development.
Significance in Agriculture:
1. Nutrient Replenishment: Corrects soil nutrient deficiencies, ensuring that crops have access to essential elements critical for robust growth.
2. Enhanced Crop Yield: Promotes healthier plants and better growth, resulting in increased agricultural productivity and higher crop yields.
3. Soil Fertility Maintenance: Regular use enriches the soil, maintaining its fertility for sustained crop cultivation and improved agricultural output.
4. Sustainable Farming Practices: Facilitates efficient nutrient use and contributes to sustainable farming by supporting soil health and minimizing environmental impact.
Overall, manure and fertilizers are indispensable tools in modern agriculture, supplying vital nutrients to plants, maintaining soil fertility, and supporting high crop yields, thereby contributing significantly to global food production and sustainable agricultural practices.