Key points of Rice cultivation techniques

As a super rice country, China has always been an important existence in promoting the development of rice in the world. So how much do you know about the key points of rice cultivation techniques? Let's have a look together!

I. key points of rice cultivation techniques

In order to cultivate rice, seven links should be mastered: soil preparation, seedling cultivation, weeding and pest control, fertilization, irrigation and drainage, drying and screening. Nowadays, machines are often used instead of manpower; seedlings can be raised by choosing the rice seedlings in the seedling center, large-scale planting groups will choose transplanters to transplant rice seedlings, and rice fields with different shapes are manual transplanting. Weeding, fertilization, irrigation and drainage are followed up according to the usual changes in the growth of rice seedlings, and need to be dried and finally screened on the harvest day.

II. Matters needing attention for ventilation of rice seedbed

1. When ventilating and refining seedlings, attention should be paid to blocking the opening of the greenhouse with braided fabric and plastic film, so as to avoid blowing directly to the seedlings.

2. Small seedlings should be ventilated from the leeward, while big seedlings can be ventilated greatly.

3. According to the temperature difference between day and night, the release time should be short when the temperature difference is too large, and the release time can be increased when the temperature difference is small.

4. guard against low temperature and cold injury. If the external minimum temperature is lower than 0 ℃, measures must be taken to increase the temperature, such as charcoal brazier, gas tank, hot light bulb, smoke bomb and so on.

5. If the lowest external temperature is less than 10 ℃, close the shed early and keep warm around 3 o'clock in the afternoon.

6. in case of low temperature and freezing injury, ventilation should be done early in the morning to alleviate the wilting of frozen leaves.

7. When the seedling field enters the three-leaf stage, it is necessary to strengthen ventilation and seedling training, especially in the cloudy morning to open the shed head for ventilation and disperse the moisture in the shed, so that the seedling field will always be in a state of dry cultivation and cultivate strong seedlings.

Generally speaking, we should pay attention to the cultivation of rice, and it is most appropriate to adjust measures to local conditions.