Replenishment of Nutrients in Soil
Replenishment of Nutrients in Soil
Nutrient Replenishment in Soil: There are two types of nutrition in plants. Green plants are autotrophs which prepare their own food. They take raw materials from the soil and air and sun’s energy to synthesise food. The balance of carbon dioxide and oxygen is steadily maintained by plants and animals on the earth. Plants release oxygen gas during photosynthesis and they utilize carbon dioxide gas released by animals. But, do you know that plants continuously utilize nutrients from the soil absorbed with water. Due to this continuous utilization, the soil gets depleted of vital nutrients. Therefore, the soil needs addition of these nutrients from time to time to maintain its fertility.
Addition of Manures: Manures are decomposed matter of animal and plant wastes. They are rich in essential nutrients and humus. Manures are added to enrich the soil with vital nutrients that plants require. Cattle dung is mostly used by farmers as manure.
Addition of Fertilizers: Farmers and gardeners add chemical fertilisers to their fields and gardens. Chemical fertiliser are rich in particular nutrients like nitrogen, phosphorus and potassium. The benefit of adding chemical fertiliser is that the soil deficient of any nutrient gets replenished with that nutrient. Examples of some chemical fertilizers are urea, superphosphate and potassium sulphate.
Addition of Compost: We know that making of compost and its benefits. Compost can be made by utilizing biodegradable waste generated in our homes. It is cheap, safe and enriches the soil with valuable nutrients.
Which of the following is correct ? (a) Plants release oxygen gas during photosynthesis and they utilize carbon dioxide gas released by animals. (b) The soil needs addition of these nutrients from time to time to maintain its fertility. (c) They are rich in essential nutrients and humus. | |||
| Right Option : D | |||
| View Explanation | |||
Chemical fertilizer are rich in particular nutrients like_______________ . | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) Plants continuously utilize nutrients from the soil absorbed with water. (b) Manures are decomposed matter of animal and plant wastes. (c) Cattle dung is mostly used by farmers as manure. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
