The jingle of planting rice

The jingle of planting rice: don't raise seedlings too early, just the temperature above five degrees; The subsoil must be mixed evenly, and the seedlings shall not be damaged; Don't sow too closely, just dry the seeds in pairs; Before weaning, prevent diseases, adjust acid and sterilize, and don't relax; The management of greenhouses should be kept in mind and the ventilation temperature should be optimistic; It is most important to open early and close early, so leave some residual temperature for a good sleep; Water must be thoroughly watered, and strong roots in dry spots are sick; The first three zones should be planted well, and the dry cultivation and sparse planting should have strong seedlings.

Rice is one of the most important food crops in China, so it is very important to plant high-yield and high-quality rice varieties for food production. At present, rice varieties have been classified, and the production efficiency has been further improved through scientific and technological means.

In variety selection, common classification methods include seed coat color, plant height, growing season and so on. For example, rice can be divided into white rice, Huang Dao rice and black rice by color, high-stalk rice, medium-stalk rice and low-stalk rice by plant height, and early rice, middle rice and late rice by growing season.

In terms of breeding methods, with the rapid development of science and technology, gene editing technology has been widely used in rice breeding. By editing seed genes, excellent varieties can be quickly screened out and the adaptability of rice in drought and disease resistance can be improved.

Tiantuan management

Field management techniques, including irrigation, fertilization and pesticide prevention, are very rich. According to different geographical location, climate and soil conditions, different irrigation and fertilization techniques are needed. For example, in arid or water-deficient areas, methods such as strengthening irrigation and changing irrigation methods can be adopted to ensure that rice gets enough water during its growth. In terms of fertilization, different soils need different fertilizers. For example, acidic soil needs more lime to neutralize soil acidity.

In addition, for the prevention of pesticide diseases, different measures should be taken according to different diseases and insect pests. For example, rice may be attacked by netted insects and bacteria during its growth. At this time, chemical agents or biological control methods can be used to eliminate the threat of pests and diseases.