Rice is widely planted in the south, and many places have low rice yield due to high temperature in summer. In this hot summer, rice is also a high incidence of pests and diseases. How to prevent and control high temperature and heat damage, and prevent pests and diseases in rice planting in summer? The following are the prevention methods for pests and diseases related to summer rice planting organized by Huinong.com.
Rice cultivation is still planted in some parts of the south for two or three seasons of rice; this has a great impact on the quality of rice; especially in the hot summer season, the high temperature heat damage of rice in rice fields is quite obvious. How to prevent and control high temperature and heat damage is a relatively difficult problem encountered by farmers in the process of planting rice. It is also a key issue affecting rice yield and quality. It seems that rice is particularly important in summer.
In the hot summer season, rice is more vulnerable to high temperature damage. Therefore, at this time, it is necessary to use the daily irrigation night row or the more popular sprinkler irrigation method to spray water to cool the rice field to ensure that the temperature of the rice ear is lowered and the rice crop is protected from high temperature. Through the continuous exploration of the peasants, it is concluded that in the high temperature of 35 ° C or above, the rice field is about 10 cm, the temperature around the rice ear will drop by about 2 ° C; the relative humidity will increase by 4 percentage points. Therefore, it is necessary to adopt a method of cooling the water by the sprinkler irrigation to cool the rice in summer.
In addition to spraying water to cool the rice in summer, the rice should be sprayed with fertilizer outside the roots to enhance the ability of rice to resist stress and prevent disasters. Farmers must combine the pest control of rice at the ear of 15-10 days before flowering according to the weather forecast, and spray 50 ml of anti-dole 600 times solution on rice to prevent high temperature and strong light. Rice damage.
After the rice enters the flowering stage, spray 50 ml of Huaduo 600 times solution, which can effectively alleviate the damage of high temperature to flowering and pollination. At the same time, it can also spray 3% calcium superphosphate solution or 0.2% potassium dihydrogen phosphate solution to reduce the high temperature heat damage, and also improve the rice seed setting rate and 1000-grain weight.
The above-mentioned methods for preventing pests and diseases in rice planting in summer can basically ensure that the rice grown by farmers can be smoothly spent in summer. I hope to help farmers who grow rice here!
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