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Questions and Answers

What are the major agricultural practices discussed in chapter 1 of Science NCERT Grade 8?

The major agricultural practices discussed in chapter 1 of Science NCERT Grade 8 are soil preparation, sowing, adding manure and fertilizers, irrigation, protection from weeds, harvesting, and storage.

What are the different examples of manures and fertilizers mentioned in the chapter?

The chapter mentions different examples of manures and fertilizers such as cow dung, urine, compost, vermicompost, and chemical fertilizers like urea, DAP, and NPK.

What is the difference between Kharif and Rabi crops as mentioned in the chapter?

According to the chapter, Kharif crops are grown during the monsoon season, i.e., from June to September, whereas Rabi crops are grown in winter, i.e., from October to March. Kharif crops have a longer crop cycle and require more water, while Rabi crops have a shorter crop cycle and can tolerate lower temperatures.

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Study Notes

Science NCERT Grade 8 Chapter 1 is about crop production and management.
Crops are classified as Kharif and Rabi.
The chapter discusses important agricultural practices such as soil preparation, sowing, adding manure and fertilizers, irrigation, protection from weeds, harvesting, and storage.
The chapter also provides information on animals as sources of food.
The process of tilling and ploughing is covered in soil preparation.
Selection of seeds is discussed in sowing.
Different examples of manures and fertilizers used are given.
Various sources of irrigation are mentioned along with traditional and modern methods of irrigation.
Protection of crops from weeds is discussed.
Harvesting, threshing, and winnowing are covered in the chapter.