Preventive and Control Measures for Crop
Preventive and Control Measures for Crop
Protection of Crops: pests are those organisms which damage crops and make them unfit for human consumption. The most common pests are insects, rats, rabbits and birds. Microbes like bacteria, fungi and viruses also cause diseases to crop plants. Some chemicals called ‘pesticides’ are sprayed on crops to destroy pests. Birds can be scared away from the filed by installing scare crows.
Which of the following statements are correct? (i) Cochineal insect is used to eliminate Opuntia. (ii) Water logging decreases the amount of salts in the soil that increases soil fertility. (iii) Fertilisers are not readily soluble in water, so they are absorbed by the plants slowly. (iv) Rust of wheat is a fungal disease. (v) The practice of growing two or more dissimilar crops in the same field one after the other is called mixed cropping. | |||
| Right Option : B | |||
| View Explanation |
_______________________food such as cereals, pulses, flour, sugar, spices and nuts can be stored at room temperature in suitable containers or bags after proper drying in the sun followed by drying in shade. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Dry or nonperishable food such as cereals, pulses, flour, sugar, spices and nuts can be stored at room temperature in suitable containers or bags after proper drying of it. (b) Perishable food, i.e., those that are likely to be spoiled at room temperature very soon, should be stored at a low temperature. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
One 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.
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Eshan Arora
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
Yatharthi Sharma
10thAbhyas 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
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Cheshta
10thA 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.
