{"id":3643,"date":"2022-12-30T05:37:29","date_gmt":"2022-12-30T05:37:29","guid":{"rendered":"https:\/\/theexampillar.com\/ncert\/?p=3643"},"modified":"2023-01-31T07:02:07","modified_gmt":"2023-01-31T07:02:07","slug":"ncert-solutions-class-8-science-chapter-1-crop-production-and-management","status":"publish","type":"post","link":"https:\/\/theexampillar.com\/ncert\/ncert-solutions-class-8-science-chapter-1-crop-production-and-management\/","title":{"rendered":"NCERT Solutions Class 8 Science Chapter 1 Crop Production and Management"},"content":{"rendered":"

NCERT Solutions Class 8 Science\u00a0<\/span><\/h2>\n

The NCERT Solutions in English Language for Class 8 Science Chapter – 1 (Crop Production and Management) <\/strong>has been provided here to help the students in solving the questions from this exercise.<\/span><\/p>\n

Chapter – 1 (Crop Production and Management)<\/span><\/h2>\n

1.\u00a0Select the correct word from the following list and fill in the blanks.
\n<\/strong><\/span><\/p>\n\n\n\n
float, water, crop, nutrients, preparation<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(a)<\/strong> The same kind of plants grown and cultivated on a large scale at a place is called _____________.
\n(b)<\/strong> The first step before growing crops is _____________ of the soil.
\n(c)<\/strong> Damaged seeds would _____________ on top of water.
\n(d)<\/strong> For growing a crop, sufficient sunlight and _____________ and _____________ from the soil are essential.<\/span><\/p>\n

Answer – <\/strong><\/span><\/p>\n

(a)<\/strong> The same kind of plants grown and cultivated on a large scale at a place is called the\u00a0crop<\/strong><\/span>.
\n(b)<\/strong> The first step before growing crops is the\u00a0preparation<\/strong><\/span>\u00a0of the soil.
\n(c)<\/strong> Damaged seeds would\u00a0float<\/strong><\/span>\u00a0on top of the water.
\n(d)<\/strong> For growing a crop, sufficient sunlight and\u00a0water<\/strong><\/span>\u00a0and\u00a0nutrients<\/strong><\/span>\u00a0from the soil are essential.<\/span><\/p>\n

2. Match items in column A with those in column B.<\/strong><\/span><\/p>\n

\n\n\n\n\n\n\n\n\n
A<\/strong><\/span><\/td>\nB<\/strong><\/span><\/td>\n<\/tr>\n
(i) Kharif crops<\/span><\/td>\n(a) Food for cattle<\/span><\/td>\n<\/tr>\n
(ii) Rabi crops<\/span><\/td>\n(b) Urea and superphosphate<\/span><\/td>\n<\/tr>\n
(iii) Chemical fertilisers<\/span><\/td>\n(c) Animal excreta, cow dung urine and plant wastes\u00a0<\/span><\/td>\n<\/tr>\n
(iv) Organic manure<\/span><\/td>\n(d) Wheat, gram, pea<\/span><\/td>\n<\/tr>\n
<\/td>\n(e) Paddy and maize<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Answer – <\/strong><\/span><\/p>\n

\n\n\n\n\n\n\n\n
A<\/strong><\/span><\/td>\nB<\/strong><\/span><\/td>\n<\/tr>\n
(i) Kharif crops<\/span><\/td>\n(e) Paddy and maize<\/span><\/td>\n<\/tr>\n
(ii) Rabi crops<\/span><\/td>\n(d) Wheat, gram, pea<\/span><\/td>\n<\/tr>\n
(iii) Chemical fertilisers<\/span><\/td>\n(b) Urea and superphosphate<\/span><\/td>\n<\/tr>\n
(iv) Organic manure<\/span><\/td>\n(c) Animal excreta, cow dung urine and plant wastes<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

3. Give two examples of each.
\n<\/strong>(a)<\/strong> Kharif crop
\n(b)<\/strong> Rabi crop<\/span><\/p>\n

Answer –
\n<\/strong>Kharif crops \u2013<\/strong> Paddy and maize
\nRabi crops \u2013<\/strong> Wheat and pea<\/span><\/p>\n

4. Write a paragraph in your own words on each of the following.
\n<\/strong>(a)<\/strong> Preparation of soil
\n(b)<\/strong> Sowing
\n(c)<\/strong> Weeding
\n(d)<\/strong> Threshing<\/span><\/p>\n

Answer – <\/strong><\/span><\/p>\n

(a) Preparation of soil –\u00a0<\/strong>There are three major steps that are involved in the preparation of soil. These three steps are namely, ploughing, levelling as well as manuring. Ploughing aids in bringing the nutrients present in the deep soil arrive above the soil. Levelling is responsible for maintaining the uniform level of the soil. Manuring helps in yielding a better product to the farmers.<\/span><\/p>\n

(b) Sowing –\u00a0<\/strong>Sowing is known to be the process through which seeds get buried within the soil. The seeds germinate into the soil after the Sowing process has been completed. Further, the seeds develop into a whole plant.<\/span><\/p>\n

(c) Weeding –\u00a0<\/strong>The process of weeding means the act of eliminating wild plants from a place where they are not desired. Weeding helps in removing the unwanted plants.<\/span><\/p>\n

(d) Threshing –\u00a0<\/strong>Threshing is considered as a process in which the edible part of grain from the straw is loosened. Threshing is done after reaping as a process of grain preparation.<\/span><\/p>\n

5. Explain how fertilisers are different from manure.<\/strong><\/span><\/p>\n

Answer –<\/strong><\/span><\/p>\n\n\n\n\n\n\n\n
Fertilizers<\/span><\/th>\nManure<\/span><\/th>\n<\/tr>\n<\/thead>\n
Fertilizer is an inorganic salt.<\/span><\/td>\nManure is a natural substance obtained by decomposition of cattle dung, human waste and plant residues.<\/span><\/td>\n<\/tr>\n
Fertilizers are prepared in factories.<\/span><\/td>\nManures can be prepared in fields.<\/span><\/td>\n<\/tr>\n
Fertilizers are rich in plant nutrients such as nitrogen, phosphorus and potassium.<\/span><\/td>\nManure is relatively less in plant nutrients.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n

6. What is irrigation? Describe two methods of irrigation which conserve water.<\/strong><\/span><\/p>\n

Answer –\u00a0<\/strong>The supply of water to crops at regular intervals is called irrigation. Methods of irrigation which conserve water are.<\/span><\/p>\n