C. Very Short Answer Type Questions
1. Name the two steps involved in the preparation of soil before plantation.
2. Name some oilseed and plantation crops.
3. What is the use of cultivator?
4. What is the benefit of transplantation?
5. Why is drip irrigation the best method of watering plants?
6. What are silos?
Answers
Explanation:
National Council of Educational Research and Training (NCERT) Book for Class VIII
Subject: Science
Chapter: Chapter 1 – Crop Production and Management
Class VIII NCERT Science Text Book Chapter 1 Crop Production and Management is given below.
Paheli and Boojho went to their uncle’s house during the summer vacation. Their uncle is a farmer. One day they saw some tools like khurpi, sickle, shovel, plough, etc., in the field.
NCERT Class VIII Science Chapter 1 Crop Production and Management
You have learnt that all living organisms require food. Plants can make their food themselves. Can you recall how green plants synthesise their own food? Animals including humans can not make their own food. So, where do animals get their food from?
But, first of all why do we have to eat food?
You already know that the energy from food is utilised by organisms for carrying out their various body functions, such as digestion, respira and excretion. We get our food from plants, or animals, or both.
NCERT Class VIII Science Chapter 1 Crop Production and Management
NCERT Class VIII Science Chapter 1 Crop Production and Management
In order to provide food for a large population— regular production, proper management and distribution of food is necessary.
1.1 Agricultural Practices
Till 10,000 B.C. people were nomadic. They were wandering in groups from place to place in search of food and shelter. They ate raw fruits and vegetables and started hunting for animals for food. Later, they could cultivate land and produce rice, wheat and other food crops. Thus, was born ‘Agriculture’.
When plants of the same kind are grown and cultivated at one place on a large scale, it is called a crop. For example, crop of wheat means that all the plants grown in a field are that of wheat.
You already know that crops are of different types like cereals, vegetables and fruits. These can be classified on the basis of the season in which they grow.