Page No 207: - Chapter 15 - Improvement In Food Resources - Ncert Solutions class 9 - Science
Updated On 26-08-2025 By Lithanya
You can Download the Page No 207: - Chapter 15 - Improvement In Food Resources - Ncert Solutions class 9 - Science with expert answers for all chapters. Perfect for Tamil & English Medium students to revise the syllabus and score more marks in board exams. Download and share it with your friends
Share this to Friend on WhatsApp
Question 1:
Compare the use of manure and fertilizers in maintaining soil fertility.
Answer:
Manures increase soil fertility by enriching the soil with organic matter and nutrients as it is prepared by the decomposition of animal excreta and plant wastes. On the other hand, fertilizers are mostly inorganic compounds whose excessive use is harmful to the symbiotic micro-organisms living in soil. Their excessive use also reduces soil fertility. Hence, fertilizers are considered good for only short term use.
