is done on EduRev Study Group by Class 8 Students. Sol: Crop rotation method involves growing of set of crops in a regular succession over a same piece of land (field with) in a specific period of time. Required fields are marked * Comment. The practice in which different types of crops are grown alternately in the same field or soil is called crop rotation. Force and Pressure Class 8 Science Chapter 11 as per NCERT Book used in CBSE and other Schools. Science. Answer: Weeds Question 2. Each regular polygon has as many lines of symmetry as it has sides. As with the three year crop rotations and five year crop rotations, we divide our plot up after allowing for the permanent beds of comfrey, asparagus and rhubarb etc. Examples: Paddy, maize, soyabean, groundnut, cotton etc. The Questions and Science MCQs for Class 8 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. Definition? soon. Students who are in Class 8 or preparing for any exam which is based on Class 8 Science can refer NCERT Science Book for their preparation. Maintenance. Following this rotation sequence helps prevent three main problems we see when planting only one crop year after year. You can study other questions, MCQs, videos and tests for Class 8 on EduRev and even discuss your questions like Ideally, these crops are not of the same family. As with the three year crop rotations and five year crop rotations, we divide our plot up after allowing for the permanent beds of comfrey, asparagus and rhubarb etc. For example, cereals alternating with legumes. TYPES OF CROPS Kharif Crop:- The crops which are sown in rainy season are kharif crops. | EduRev Class 8 Question is disucussed on EduRev Study Group by 178 Class 8 Students. Crop rotation is a common practice on sloping soils because of its potential for soil saving. NCERT Book for Class 8 Science Chapter 1 Crop Production and Management is available for reading or download on this page. This discussion on What is crop rotation ? Secondary School. 1)Nature of crop:Each crop need specific amount of water during the various stages of its growth and ripening.Some crops need more water whereas others require less water. This eventually leads to nutrient depletion and soil infertility. We already know that: All living organisms require food. Starting Next Year's Plan and Crop Rotation. community of Class 8. Apart from crops, agricultural fields would have weeds, small animals like rats, mites, insects, pests, disease-causing pathogens and frequently raided by birds. Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 1 Crop Production and Management. Postal Service) the class of mail consisting of merchandise weighing one pound or more, including parcel post and all first-, second-, or third-class matter weighing 8 ounces (227 grams) or more and not sealed against inspection. Monocropping reduces soil fertility and destroys the structure of the soil. Crop Rotation. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. We start the preceding winter by adding manure to the first plot, which will have potatoes planted in it. The energy from food is utilised by an organism for carrying out its various life processes such as digestion, respiration and excretion. Answers of What is crop rotation ? Crop rotation is growing two or three different crops in a year on a piece of land. Pest infestations: Many pests specialize in a certain kind of crops. Crop rotation definition One way to think about crop rotations is to change the crop in a field each year. agree to the. community of Class 8. Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 1 Crop Production and Management. Crop rotation definition, the system of varying successive crops in a definite order on the same ground, especially to avoid depleting the soil and to control weeds, diseases, and pests. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant pest and weeds. Harvesting - methods af harvesting. You can study other questions, MCQs, videos and tests for Class 8 on EduRev and even discuss your questions like Multiple ( i.e., more than one ) lines of Symmetry as has! And pressure it is done so that the corn planted the following year will not be adversely! ; Rice – Wheat ; 2 are force and types of force, fluids and fluids pressure ). 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