Why are manure and fertilizers used in fields?
Solution and Explanation
The essential nutrients of the soil are full filled by manures and fertilizers supply. Therefore, they help in good vegetative growth, giving rise to healthy plants that rise in high crap production.
Top Questions on Improvement in Crop Yields
- What is genetic manipulation? How is it useful in agricultural practices?
- CBSE Class IX
- Science
- Improvement in Crop Yields
- What are the advantages of inter-cropping and crop rotation?
- CBSE Class IX
- Science
- Improvement in Crop Yields
- How do storage grain losses occur?
- CBSE Class IX
- Science
- Improvement in Crop Yields
- Explain any one method of crop production which ensures high yield.
- CBSE Class IX
- Science
- Improvement in Crop Yields
Questions Asked in CBSE Class IX exam
1. ______the firefighters finally put out the fire. (They worked round the clock.)
2. She watched the sunset above the mountain,_____ (She noticed the colours blending softly into one another.)
3. The excited horse pawed the ground rapidly, _____(While it neighed continually.)
4. _____, I found myself in Bangalore, instead of Benaras. (I had taken the wrong train.)
5. _____, I was desperate to get to the bathroom. (I had not bathed for two days)
6. The stone steps,______ needed to be replaced. (They were worn down).
7. The actor received hundreds of letters from his fans, _______(They asked him to send them his photograph.)
- CBSE Class IX
- A truly beautiful mind
- What are the precious things mentioned in the story? Why are they precious?
- CBSE Class IX
- The happy prince
- What do you think his words mean? Why do you think he spoke those words?
- CBSE Class IX
- My childhood
- How does the author describe: (i) his father, (ii) his mother, (iii) himself?
- CBSE Class IX
- My childhood
(i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)- CBSE Class IX
- The snake and the mirror
Concepts Used:
Strategies For Enhancement in Food Production
Animal Husbandry
The raising and breeding of livestock are known as animal husbandry. Dairy farm management and fisheries are also included under animal husbandry and responsible for the selection of good breeds for better yield, maintaining a well-ventilated house and proper cleanliness and hygiene, and regulating proper disposal of waste.
Read More: Strategies for Enhancement in Food Production
Animal Breeding
The practice of raising a group of animals belonging to a common species. Inbreeding and outbreeding are the two types of animal breeding.
- Animals of superior male and female breed are made to mate for 4 to 6 generations. According to Mendel's experiment, true-breeding species or pure lines are created by Inbreeding which results in homozygosity.
- The breeding involving animals that are not related is known as outbreeding.
- Bee-keeping: The rearing of bees for the production of honey and beeswax is known as apiculture. One of the most common species of the honey bee is Apis indica. Beeswax is used to prepare polish, cosmetics, etc.
- Fisheries: Cultivation or breeding of aquatic flora and fauna for a commercial purpose is known as aquaculture. Fish and fish products for consumption are known as pisciculture.
Plant Breeding
In order to get rid of nutrient deficiency diseases, crops need to have a specific nutrient value besides disease resistance, pest resistance, and high yield capacity. There are many strategies for enhancing food production through plant breeding.
- Somatic Hybrids
- Totipotency
- Biofortification
Plant Breeding for Disease Resistance
Plant Breeding for Pest Resistance
Plant Breeding for Improved Food Quality
Single-Cell Protein
One of the ways to meet the growing demand of nutrients in plants and animals is a single-cell protein which is biomass that is rich in protein. microbes are produced on an industrial scale to get single-cell protein.