Effects of Manure and Fertiliser on Soil
Effects of Manure and Fertiliser on Soil
Effects of Manure and Fertilizers on the Soil:
We know that soil provides the most suitable base for agriculture. By the repeated growing of plants, the essential nutrients get depleted in the soil and hence the fertility of the soil is reduced considerably. The excessive use of chemical fertilizers degrades the quality of the soil in the long run. This also leads to water pollution. For example, excessive use of nitrogenous fertilizers makes the soil and water rich in nitrates. Such water becomes unsuitable for drinking. Besides, when this water flows into rivers, lakes and ponds nearby, it encourages the prolific growth of algae and thereby reduces the amount of oxygen dissolved in water. Such water then becomes unfit for the survival of aquatic life. This process is called eutrophication.
Which of the following are correct : (a) Plants easily absorb the fertilizers as compared to the manure. (b) Fertilizers improve and increase the yield of crops like wheat, maize and rice. | |||
| Right Option : C | |||
| View Explanation | |||
When water containing nitrates flows into rivers, lakes and ponds nearby, it encourages the prolific growth of _________________. | |||
| Right Option : A | |||
| View Explanation | |||
When water containing nitrates flows into rivers nearby, it encourages the prolific growth of algae, reduces the amount of oxygen dissolved in water which becomes unfit for the survival of aquatic life, this process is called __________________. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
My 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
7thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thAbhyas 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
10thAbhyas 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
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
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Ayan Ghosh
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Hiya Gupta
8thBeing 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.
