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Competition success review hindi Competition success review hindi   published this article page no 19 about one-fourth of the total cropped area in the country is under rice cultivation. west bengal punjab and uttar pradesh were the leading rice producing states in the country in 2009-10. the yield level of rice is high in punjab tamil nadu haryana andhra pradesh telangana west bengal and kerala. in the first four of these states almost the entire land under rice cultivation is irrigated. punjab and haryana are not traditional rice growing areas. rice cultivation in the irrigated areas of punjab and haryana was introduced in 1970s following the green revolution. genetically improved varieties of seed relatively high usage of fertilisers and pesticides and lower levels of susceptibility of the crop to pests due   competition success review hindi latest edition . Competition success review hindi

Biology today magazine Biology today magazine   published this article page no 18 account of important cereals has been given in the following paragraphs    rice is a staple food for the overwhelming majority of population in india. though it is considered to be a crop of tropical humid areas it has about 3000 varieties which are grown in different agro-climatic regions. these are successfully grown from sea level to about 2000 m altitude and from humid areas in eastern india to dry but irrigated areas of punjab haryana western u.p. and northern rajasthan. in southern states and west bengal the climatic conditions allow the cultivation of two or three crops of rice in an agricultural year. in west bengal farmers grow three crops of rice called aus aman and boro. but in himalayas and northwestern parts of the country it is grown as a kharif crop during southwest monsoon season. india contributes 21.6 per cent of rice production in the world and ranked second after china in...