Rice

Rice accounts for 80% of the calories eaten in Asia, or one-fifth of the calories eaten worldwide by humans. It is the agricultural commodity with the third-highest worldwide production (rice, 741.5 million tonnes in 2014), after sugarcane. Alluvial loamy and clayey soil is ideal for growing rice. The rice crop needs about 24°C or above with minor variations during sowing, growing and harvesting seasons. It grows well in the areas where rainfall is above 100cm. Deltas, river valleys, coastal plains and terraced fields in mountainous regions are ideal for its cultivation.
Asian rice (Oryza sativa) is most widely known and most widely grown, with two major subspecies and over 40,000 varieties.[5] Also notable are varieties of African rice (Oryza glaberrima) and wild rice (genus Zizania). Rice may vary in genetics, grain length, color, thickness, stickiness, aroma, growing method, and other characteristics.