Crop Production and Management – 8th Grade Science Notes

Summary:

This passage provides short notes on crop production and management, including the definition of a crop and the difference between Kharif and Rabi crops. It also discusses the importance of soil preparation and the tools used for tilling and ploughing. Fertilizers and irrigation methods are also mentioned, including examples of each. The difference between fertilizers and manure is explained. Finally, there are fill-in-the-blank questions on crop production, including the importance of sunlight and nutrients for growing crops.

Excerpt:

Crop Production and Management – 8th Grade Science Notes

8th Class Short Notes
STD 8th Science

Crop Production and Management

1. What is a crop?
Answer: When plants of the same kind are grown and cultivated in one place on a large scale, it is called a crop.

2. what is the difference between Kharif and Rabi crops?
Answer: Kharif-The crops which are sown in the rainy season are called Kharif crops. Rabi-The crops which are sown in the winter season are called Rabin crops.

3. What crops are grown in the summer season?
Answer: Pulses and vegetables are grown in the summer season.

4. Why is the preparation of soil important?
Answer: The preparation of the soil is the most important task in agriculture to turn the soil and lose it, and it allows roots to breathe easily and roots to penetrate deep into the soil.

5. Name the process of loosening and turning off the soil
Answer: Tilling and Ploughing.

6. What are crumbs?
Answer: The ploughed field may have big pieces of soil called crumbs.

7. Name the tools used to break the soil.
Answer: The tools are a plough, hoe and cultivator.

8. What is the use of Cultivator?
Answer: Cultivators are used to prepare the soil for farming which saves labour and time.

9. What are fertilizers?
Answer: Fertilizers are chemical substances that are rich in a particular nutrient

10. Name some examples of fertilizers.
Answer: Urea, ammonium sulphate, NPK(nitrogen, phosphorus and potassium).