(V) study the map shown , identify and explain.
I The estates in western India where rice is cultivated and
why.
2. The land form which supports the rice cultivation.
3. The soil, rainfall and temperature in such a landform
4. The conditions which have made rice cultivation possible
in northern India.
Answers
Answer:
1.)Based on climatic conditions, India is broadly divided in to five major rice growing regions viz. north-eastern, eastern, northern, western and southern regions. The eastern region comprises of Assam and North eastern states and rice is grown in this region in the basin of Brahmaputra river.
2.)Paddy is grown in wide range of soil, from the podzolic alluvium of China to the impermeable heavy clay of central Thailand. Fertile riverine alluvial soil is best for rice cultivation.Clayey loam soil in monsoon land is considered to be the best for rice cultivation as water retention capacity of the soil is very high. rice is also grown in saline areas of deltic region.
3.) TEMPERATURE-Rice is a tropical crop and grown where the average temperature during the growing season is between 20°C and 27°C.
RAINFALL-Rice cultivation is possible only in areas with good rainfall, as the crop requires standing water for growth. A monthly rainfall of 100-200 mm is a must and about 125 cm is during vegetative season. And there should be no water at ripening stage.
4.)Rice grows best in areas of warm, humid climate; rice requires temperatures between 20°C and 35°C and a well-distributed rainfall of about 100 cm or irrigation facilities. Fertile soil. Delta and valley soils are the most suitable.