GAJWANI SCHOOLS & COLLEGES Fertility of the soil Q1 Write short note on channel irrigation method. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil 2 Write short note on drip irrigation method GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Ans. This is one method of irrigation in which there is less wastage of water. A pipe is arranged in such a way that the hole of the pipe GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Pipe comes near each plant in entire field . Each plant get water drop by drop through the hole of pipe. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil 3 Write short note on earthen pot irrigation method. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Ans. This method is used in the orchards. A pit of pot size measure is made near the plant in soil. An old earthen pot with holes GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Is fixed in the pit. Pot is filled with water . A lid is kept on pot to prevent the evaporation. The pot is filled with water when GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil It gets empty. The roots of plant absorb water according to the need. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil 4 Which methods should be used to control the soil erosion. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Ans. Following should be adopted to control soil erosion. 1 Level the soil by ploughing. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil 2 grow trees surrounding the farm. 3 Steps in sequence should be made in sloppy land. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil 4 Grass should be grown at the edge of steps. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil 5 Give two points of difference between drip irrigation method and channel irrigation method GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

S6S1SCCH5-Identifying the plants-Day-4 Lesson PLan Give difference between Drip irrigation Channel irrigation Wastage of water does not occur. Huge wastage of water occur. S6S1SCCH5-Identifying the plants-Day-4 Gajwani schools and colleges Gajwani schools and colleges

S6S1SCCH5-Identifying the plants-Day-4 Lesson PLan Give difference between Drip irrigation Channel irrigation It is used in arid region. It is used in region where abundance water occur S6S1SCCH5-Identifying the plants-Day-4 Gajwani schools and colleges Gajwani schools and colleges

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Classify the following in to chemical fertilizers and natural fertilizers. (Composite manure , urea , dung manure , oilseed cake , green manure , GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4

GAJWANI SCHOOLS & COLLEGES Fertility of the soil Ammonium sulphate , diammonium sulphate. GAJWANI SCHOOLS & COLLEGES CH 5 STD 7 SCIENCE SEM 1 WEEK 2 DAY 4