Fighting the high temperature "baking" inspection of Chengdu technology specialists to "open the pulse" for agricultural production

Red Star News Network (Reporter Song Yating) On August 24, in the end of this summer, Chengdu encountered the most severe high -temperature disaster weather since the meteorological records. This has also affected agricultural production such as rice, vegetables, and fruits to varying degrees.

How to keep production scientifically? The reporter of Hongxing News Network learned from the Chengdu Science and Technology Bureau that as a communicationman of agricultural science and technology, the majority of science and technology agents in Chengdu quickly acted to "open the pulse" for agricultural production, and helped farmers reduce losses.

Starting the "defense war" of rice

"Wars high temperature" is not as good as "anti -high temperature"

At present, the rice dumping, flowing flowers and grouting periods. At this time, the rice is extremely sensitive to temperature and water. The most suitable temperature is 25-30 ° C, but the continuous high temperature becomes the "block tiger" of normal growth of rice-high temperature high temperature-high temperature It will cause a decrease in the number of effective ears, a decrease in strong rate, and an increased granularity rate, resulting in a significant reduction in rice production or even harvest. Among them, the losses encountered by high temperatures during the flowering period were the most serious.

In this regard, Lu Shihua, a special agent of Chengdu Science and Technology, "support "-

Irrigation should talk about "science". In areas with good water and water sources, timely irrigation should be irrigated in time to keep the fields of 4-6cm of water layer. In areas with poor water conditions or limited water sources, the principle of "a small number of irrigation" should be used to give priority to ensure mild mild Dry fields and moderate drought fields should abandon irrigation. It is best to irrigate before 9 o'clock in the evening to 9 o'clock the next morning;

"Nutrition" in the later period. For rice that is in different periods, it is necessary to strengthen nutrient management in different categories, enhance the endurance of rice on high temperature dehydration, and increase the strong rate and thousands of grains;

Prevent pests and insect pests in time. High -temperature disasters are prone to high incidence of pests and insect pests. They must pay special attention to rice and rice plague and rice song diseases. According to the test report of pests and insect pests, the counterpartiacin is used to prevent diseases and insect pests in a timely manner.

"For the basic fields, the folks must make a good choice to change the drought crops such as vegetables, fresh soybeans, fresh food autumn corn, and autumn potato in a timely manner to make preparations for changing planting as soon as possible." Lu Shihua Special reminder.

Disaster prevention and mitigation need to plan ahead. As a researcher at the Institute of Agricultural Resources and Environment of the Academy of Agricultural Sciences of Sichuan Province, Lu Shihua has been committed to the study of "comprehensive high -yielding technologies of rice -covered water -saving fertilizers" for many years. The effect of water -saving drought resistance should be vigorously promoted. At the same time, new varieties with drought resistance can also be adopted in a timely manner to achieve 'war high temperature' is not as good as high temperature '. "

"Pulse" vegetable planting

Multiple measures "Baoqiu harvest"

In Jianyang Shiwang Village, many vegetable growers are anxious in their hearts -the peppers growing are going to be listed in a good harvest, but at the end of the moment, they encounter severe high temperature and lack of water. The temperature exceeds 35 ° C, and most of the vegetables will be affected. More than 40 ° C, many vegetables will stop growing ... Time is urgent. If measures are not taken immediately, I am afraid that the hard work during this period will be "empty" in the end.

In order to keep, the growers sent "help" information to the science and technology special agent of vegetable planting in the village. At this time, Wanqun was ready to prepare the relevant technical information and plan to send it to everyone. As soon as, the pop -ups of WeChat and QQ kept flashing.

Wanqun, who is very familiar with local vegetable planting, learned about the latest situation, and quickly guide the growers to give response measures according to the development stage of vegetable growth-

For vegetables in the seedling period, you can open the shade net from 10:30 am to 3:30 pm, and turn on the wet curtain to cool down. If there is a spray device, you can spray in the morning or evening. Water, ensure that the matrix is ​​moist and improves the high temperature ability of the seedlings, but it is best to open the shade net after 4 pm to avoid the lack of light and cause the seedlings.

For vegetables that are growing in a strong period of growth, if it is in the greenhouse, it should quickly unveil the greenhouse film and cover the shade net on the shed. At the same time, at about 8 am and about 6 pm, drip irrigation can be used to water Cooling down, at the same time, you can add some amino acids or humus acid fertilizer, bonicardia, etc. to the water to increase the heat resistance ability of vegetables.

For vegetables in the middle and late stages of growth, the plants can be cleaned out of the greenhouse in time, watering in the shed, covering the white ground, closed greenhouses, and disinfection of high -temperature sheds to prepare for autumn and winter vegetable production;

At the same time, strengthen the prevention and treatment of diseases. At high temperature season, there are also more vegetable diseases and insect pests. While spraying water, you can use low -toxic pesticides such as Daisen, zinc, and thoroughly to prevent diseases.

"It is not easy for everyone to work hard for a season. We have technical and methods to work together to work together." Wan Qun introduced that next, we will continue to docking the growers to help everyone reduce the loss of vegetables due to high temperature loss.

More than 600 people, radiating more than 3,000 acres of land

Start the "emergency management" of the orchard

At 8 pm on August 20, a special emergency training meeting was held online. This is a online training meeting held by the deputy head of the Pujiang County Science and Technology Special Tourch and the president of the Pujiang County Heshan Fruit Association Zuo Kai to the disabled person in Pujiang County. Essence

Since July, the high temperature has lasted for more than a month. The three major industries mainly based on citrus, kiwi, and tea in Pujiang County have been greatly challenged. Phenomenon. How to help agricultural technology? Zuo Kai explained in detail in the group -water saving irrigation to increase the water content of the soil; it can be covered by tree plates to improve water retention capacity; promote reasonable trimming and cut off some branches of the dense tree to reduce Water evaporates.

"Teacher Zuo, do you need to pay attention when irrigation?" "Teacher Zuo, how can you improve the water retention ability of the orchard after irrigation?" Online training will be warmly welcomed by everyone, and the information in WeChat groups is constantly updated.

Zuo Kai patiently answered one by one-

"When irrigation, be careful not to irrigate at high temperature. The best irrigation time starts at night or early morning. At the same time, it is recommended to use dot irrigation methods to find a few points of irrigation near the drip line during irrigation. It is recommended to 3000-5000 kg each time, and a small amount of infantry acid can be added when irrigation. "

"During the high temperature shortage period, the cultivation of raw grass is the best way to improve the water reservation capacity of the soil; orchards with insufficient grass can cover the water retention capacity of the orchard in time after irrigation."

At the end of the training, Zuo Kai also patiently instructed: "During the high temperature period, everyone should not do weeding operations.

In fact, for the WeChat groups formed by these two special groups, Zuo Kai, a special agent of technology, is particularly "upper". Two WeChat groups can connect more than 600 people to radiate more than 3,000 acres of land. In this way, it is very meaningful to solve the actual difficulties for everyone. "

Water lifting level, oxygen increase

Aquatic experts "planning to plan"

For many consecutive days, the highest temperature in Chengdu has appeared in Jianyang, which has also adversely affected the development of the local aquaculture industry. It is understood that because the fish is a temperature -changing animal, and the farmers farmers are farmed in Chengdu, the optimal temperature is less than 32 ° C. High temperature weather for many days has been allowed to stop eating fish, illness, and even a large number of deaths in Jianyang. Phenomenon.

Chen Xia and Tang Hong immediately acted immediately, and quickly compiled a detailed proposal for the aquaculture farmers of Jianyang ——

First, we must maintain high water levels and stable water quality. You can also cool down on the position of some ponds.

In actual operation, what else do you need to pay attention to? Two experts carefully attach specific operation steps: ponds with conditions to add new water can be used to add new water to the pond in the morning, increase the water level, add 15-20 cm every day, and try to keep the pond's highest water level as much as possible every day. (The surface of the surface of the surface layer can be discharged from the outside of the overflow); the pond with an unconditional injection of the new water should be regulated by the water quality and controller, and the oxygen hemorrhea is used to ensure that the upper and lower water bodies are flowing. The local water temperature is too high. Ensure that good water quality is guaranteed.

In high temperature weather, the amount of fish feeding is greatly reduced, and anorexia will often occur. In this regard, the two experts suggest to reduce the amount of feeding. ; It is advisable to eat 70 % full and 15-30 minutes. The feeding area guarantees enough oxygen. If the weather is mutated, the pond is prone to hypoxia. It is necessary to turn on the oxygen meter in time.

"In summary, in high temperature weather, aquaculture households must achieve water lifting levels, oxygen increases, cooling degree, reduction of feeding ..." Chen Xia said that there are increased or reduction, and the use of scientific technology can effectively reduce everyone's losses.

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