Crop Production and Management is a chapter in Class 8 Science book. It talks about the methods of crop production and how you can increase your crop production. Below I am sharing with you Crop production and management NCERT solutions. If you have any queries, you can ask me through the comments section below. Don’t forget to follow our Facebook page to get free NCERT Solutions PDF and ebooks.
Crop Production and Management NCERT Solutions
Question 1: Select the correct word from the following list and fill in the blanks.
float, water, crop, nutrients, preparation
(a) The same kind of plants grown and cultivated on a large scale at a place is called__crop___.
(b) The first step before growing crops is__preparation_of the soil.
(c) Damaged seeds would____float__ on top of water.
(d) For growing a crop, sufficient sunlight,__water___and ___nutrients___from the soil are essential.
Question 2: Match the items in column A with those of column B
| Column A | Column B |
| (i) Kharif crops | (a) Food for cattle |
| (ii) Rabi crops | (b) Urea and superphosphate |
| (iii)Chemical fertilizers | (c) Animal excreta, cow dung, urine and plant wastes |
| (iv) Organic manure | (d) Wheat, gram, peas |
| (e) Paddy and maize |
Ans 2: (i) >> e
(ii) >> d
(iii) >> b
(iv) >> c
Question 3: Give two examples of each: Kharif Crops and Rabi Crops
Kharif Crops: Maize & Paddy
Rabi crops: Wheat, barley, and mustard
Question 4: Write para on each of the following:
(a) Preparation of Soil: Soil is prepared before seeds are sown. Loosening of the soil is essential so that the soil can easily absorb the water and manure. A tractor or bulls may be used for loosening of the soil. The tractor is run on the soil so that it becomes loosened. This also helps the nutrients to get completely mixed with the soil.
(b) Sowing: In sowing, the seeds are placed at the right position and soil is put on them. This helps the seeds to grow properly.
(c) Weeding: The unnecessary that starts growing along with the crops are known as weeds. Weeds take up nutrients from the main crops. So, these weeds should be removed timely. These weeds can be removed manually or by using machines. Different chemicals are also used by farmers to remove these weeds.
(d) Threshing: In the process of threshing we remove the grains (edible part) from the chaff. It may be done manually by striking it on the ground or by using a flail.
Crop Production and Management Explanation video by Deepak Kumar Sir
Question 5: Explain how fertilizers are different from manures.
Ans.
(i) Manures provide humus to the soil while fertilizers does not provide humus to the soil
(ii) Fertilizers may contain only few nutrients but manure is rich in nutrients
(iii) Fertilizers are made by artificial process whereas manure are prepared from the wastes.
Question 6: What is irrigation? Describe two methods of irrigation which conserve water
Ans 6: Crops need water for their growth. Providing water to the crops is known as irrigation. There are different method of irrigation. Let us check them:
Sprinklers: Sprinklers are used to irrigate crops and lawns. Water is supplied in a controlled manner. The sprinklers move in a circular pattern to spread water in all parts of the crop
Drip irrigation system: In this method, water is released in a slow manner and in way that water reachers the roots directly so that extra water does not get evaporated. This is considred an efficient method of irrigation.
Question 7: What would happen if wheat is sown in the Kharif season? Discuss
Ans 7: Wheat needs a warm climate and if it is grown in the kharif season then the seeds may get destroyed due to the presence of excess water in the field. So, it is better to grow wheat in the rabi season only.
Question 8: Explain how soil gets affected by the continuous plantation of crops in a field.
Ans 8: Continuous plantation of crops may lead the soil to lose its fertility. Soil needs a time gap after growing a particular crop. If we keep planting the crops without any break the field may become infertile.
Question 9: What are weeds and how can we control them?
Ans 9: Weeds are unwanted plants that grow with the crops. If allowed to grow they keep on taking nutrients from the soil and causes a problem for the main crops. So, these weeds are removed by hands or by using a mechanical process. Chemicals may also be used to destroy the weeds present in the crops.
So, these were Crop Production and Management NCERT Solutions for Class 8 Science NCERT Book. Stay connected to Careeradvice4u for more such study materials and NCERT Solutions for Maths, science and English. This was Deepak Kumar here. Don’t forget to follow us on Facebook for free study materials.
Deepak Kumar is the founder of careeradvice4u.com. He is a Professional Blogger, web designer, and a highly experienced teacher too. He has done Bsc. IT computer Science from Himalyan Garhwal University and has 13 years of teaching experience. He teaches various subjects upto XII class and above that also. He has helped thousands of students to excel in academics. He had in his mind from a very long time to use his blogging passion for the help of School, college students, and other job seekers. Careeradvice4u will bring to you all the information and stuff that you need to shape up your career. He is also the founder of successfully growing tech blog: techadvises.com and also runs his own digital marketing agency, xPress Web Solutions, which deals in all types of web solutions
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