Methods of Weed Control
Methods of Weed Control
Management of Crop Protection: Crop fields may have a large number of undesirable plants (weeds), insect pests and diseases. Various methods are:
Control of Weeds: Many undesirable plants grow along with cultivated crops. These unwanted plants are called weeds. The growth of weeds in the field is very harmful as they compete with the useful plants for minerals, water, light and space. They thus decrease the crop yield and lower the quality of foodgrains. Another disadvantage is that weeds spread crop pests and diseases by acting as alternative hosts to insects and microorganisms. Weeds some times produce poisonous substances which may affect crop growth or may poison crop produce. It is, therefore, essential to remove these weeds from time to time. Common weeds are: Amaranthus (chaulai), Chenopodium (bathua), Convolvulus (khuri), doob grass.
Methods of weed control: The process of removing weeds from a crop field is called weeding. Mechanical, biological and chemical means are adopted to control weeds.
Mechanical method: Weeds are removed manually by hand or with the help of a harrow (khurpi), hoe or rake. It is a costly affair and takes a lot of time. Weeds are also removed by tilling, mowing (cutting with a machine), burning and flooding.
Biological method: some insects or organisms are deliberately put into the crop field to destroy the weeds but do not harm the crop.
Chemical control: Chemicals used to kill weeds are called weedicides. The use of weedicides is easy, cheap and less time-consuming. Weedicides may be used as sprays or powders. Since weedicides are poisonous substances, the grains must be washed before use. Weedicides are also called herbicides
All the plants other than crop plants are called ______________ | |||
| Right Option : A | |||
| View Explanation | |||
All the plants other than crop plants are called _____________ | |||
| Right Option : A | |||
| View Explanation | |||
The removel of weeds is called __________________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
Being 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
8thIt 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
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
8thA 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
7thI 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
10thIt 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.
