Rice is a herbaceous genus Oryza, as a grain of crops, the most important one and the oldest, and also known as the Asian type of cultivated rice. The life cycle of crop is generally one year. It belongs to grass, with monocots and is suitable for warm and humid environment. The mature rice is about 1 to 1.8 meters tall, slender leaves, about 50-100 cm long and a width of 2 to 2.5 cm. Rice flower is very small. The shape of flowers in upper part is like the arch. The flowers in the branches down between 30-50 cm are most self-pollination and seed, called rice. The size of rice generally 5-12 mm long, 2-3 mm thickness.
At present, half the world's population eat rice, mainly in Asia, southern Europe and parts of tropical America and Africa. The total production of the world's rice crop yield in third place, just below the corn and wheat, but able to maintain more of the population lives, so the 2004 United Nations as the "International Year of Rice.
Pepper is native to India, a vine, climbing trees or piles born in the rack. Also known as Ku, Kurokawa, Shirakawa. It can only grow in 2500 mm annual precipitation in tropical regions, growing middle still need some time between hot and dry. Indonesia, India, Malaysia, Sri Lanka and Brazil are the major exporters of pepper. Its seeds contain volatile oil, piperine, crude fat, crude protein, etc., is a favorite condiment. Pepper has fragrance and strong spicy. The tasting of black pepper is more heavy. It is not suitable to be cooked in long time. Pepper cultivation has a long history, not just a condiment or blindly herbs. Now commonly used spice pepper in history has had a very important position.
Corn also known as maize, is a large grain plant domesticated by indigenous people in Mesoamerica. After European contact with the Americans in the late 15th and early 16th centuries, traders and explorers carried maize back to Europe and introduced it to their countries. Corn spread around the world because of its characteristics to grow in diverse climates. China is one of the countries that has the highest production of corn. Corn is the highest production crop in the world.
Corn's stem has the appearance of a bamboo cane and its leaf grows from each node. Elongated stigmas called silks emerge from the whorl of husk leaves at the end of the ear. Generally, corn is 2.5m in height, though some natural strains can grow 12m. Corn breeding in prehistory resulted in large plants producing large ears. Modern breeding then began with individuals who selected highly productive varieties in their fields and then solo seed to other farmers.