Rice originated in China. Archaeologists found carbonized rice blocks and rice husks in Neolithic sites in the Yangtze River basin and the Yellow River basin. It has been planted for more than 4,700 years, and it is the earliest country to grow rice in the world. Note that it was planted in China and spread to India.
Morphological characteristics of rice Rice is an annual aquatic herb. Its stem grows vertically, with a height of 50- 150 cm, which is related to varieties. Its leaf sheath is loose and hairless. The ear of rice is an ear, which will bend in the countryside when it matures. The length of a single caryopsis is 5 mm and the width is 2 mm.
The cultivation technology of rice has certain requirements for soil, and it is suitable for planting in plots with deep soil layer, fertile soil layer, convenient irrigation and drainage and no saline-alkali land. Deeply plough the soil to make it soft, apply farmyard manure and decomposed cake fertilizer, insert the seedlings into the soil, and supplement water and nutrients when pulling up the seedlings to make them grow healthily.
Rice diseases and insect pests are prone to rice blast, bacterial leaf blight, sheath blight and other diseases during rice planting. At the beginning of the disease, brown spots will grow on the rice festival and gradually spread around. Paddy fields should be properly dried. Amobam and Dr. Hua Guoneng were selected to be diluted and mixed evenly, and sprayed from the heading stage.