Rice (Oryza sativa)

Rice can be cultivated under a variety of climatic and soil conditions. Rice cultivation is conditioned by temperature parameters at the different phases of growth. The critical mean temperature for flowering and fertilization ranges from 16 to 20⁰C, whereas, during ripening, the range is from 18 to 32oC. Temperature beyond 35⁰C affects grain filling. Rice comes up well in different soil types. For normal growth, a pH range of 5.0-8.0 is suitable. In general, rice can be grown as transplanted or direct sown crop during three seasons as shown below depending on the agroclimatic situations