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GAJWANI SCHOOLS & COLLEGES

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Presentation on theme: "GAJWANI SCHOOLS & COLLEGES"— Presentation transcript:

1 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil New words 1 Ploughing 2 Equipments GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 1

2 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil HW 1Which type of equipments used for ploughing? 2 What are the benefits of ploughing? GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 1

3 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Crop rotation Instead of cultivating same type of crop every year , pulse or other crops are cultivated alternately. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

4 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

5 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Alternative crop The raising of two or more crops on the same land in alternative rows. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

6 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

7 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil What are the benefits of alternative crops? GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

8 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Fertilizers To increase and maintain the fertility of the soil a farmer adds fertilizers in the soil. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

9 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Generally natural fertilizers are used by a farmer. Chemical fertilizers are used if required. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

10 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

11 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

12 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil To protect the crop from insect insecticide should be used GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

13 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Soil erosion Removal of soil particles of upper layer of the soil. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

14 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil There are three natural factors that causes soil erosion. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

15 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil 1 Wind 2 heavy rain fall 3 flowing water. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

16 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Soil fertility reduced due to soil erosion. So soil erosion must be preveted. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

17 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil To control the soil erosion 1 Level the soil by ploughing. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

18 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Grow trees surrounding the farm GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

19 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil Grass should be grown at the edge f the step GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

20 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil New words 1 Edge 2 Alternative GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

21 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil HW 1 What is the difference between crop rotation and alternative rotation? GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2

22 GAJWANI SCHOOLS & COLLEGES
Fertility of the soil 2 Which steps should be taken to stop the soil erosion? GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 1 DAY 2


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