In addition to low temperature and high humidity, there are 2 triggers that are ignored, and the use of 3 formulas of suke rice blight low temperature high humidity day and night temperature difference is an important reason for the induction of rice blight Soil guest soil and high alkalinity is also an important reason for the induction of rice seedling blight. The "outbreak" of rice seedling blight is also related to insufficient light conditions. One of the recommended formulas: 30% soil bacteria dehydrating agent and 0.01% hydroxytenol adenine aqueous agent and multifunctional foliar fertilizer rooting and seedling strengthening agent ternary compound stem and leaf spray use. Recommended formula 2: 25.9% gram of quinine water agent and 0.01% rapeselide water agent and multi-functional liquid AGENT IO% Baofengling ternary compound stem and leaf spray are used. Recommended formula no. 3: 70% dixone (dicosone) wettable powder combined with watering to pour the rice seedlings into the seedbed.

As the saying goes, a seedling is half as good as a seedling. Good and robust seedlings are the material basis for rice cultivation to achieve abundant yields.

Photo: Rice blight seedbed disease

At present, most of the rice semi-drought seedlings sown in the early stage have begun to be excavated and the small membrane (inner membrane) in the buckle shed has been removed.

Passing through the "Yaquekou" stage of rice seedlings is an important prevention period for rice seedbed blight. Rice farmers should take appropriate drugs in a timely manner and carry out chemical prevention and control.

Otherwise, once the feeling of rice blight spreads, it will not only affect the number of rice seedlings but also affect the quality of rice seedlings, shake the "foundation" of increasing rice production and yield, and endanger the economic benefits and enthusiasm of rice planting.

< h1 class="pgc-h-arrow-right" > the large temperature difference between day and night at low temperature and high humidity is an important cause of rice blight</h1>

Image: Plant growth regulator

Recently, weather changes have been in low temperature and rainy periods. In the Qingjiang Crane Hermitage since the beginning of the Qing Dynasty in April, the weather is mainly light rain, occasionally sunny, cloudy days are the norm day and night temperature difference is large (the minimum temperature at night is 5 °C ~ 8 °C, and the daytime temperature changes between 12 °C and 25 °C). Such weather is not conducive to the growth of rice seedlings, coupled with the unique "small climate" impact of mountainous hilly areas, comprehensive prevention and control of rice blight over the years, the prevention and control of rice blight is still based on prevention. It is not possible to choose the spray of agents after the emergence of "dead seedlings" in the rice seedbed, which will delay the prevention and control of rice blight and aggravate the loss of seedlings.

<h1 class="pgc-h-arrow-right" > soil guest soil and high alkalinity are also important reasons for the induction of rice seedling blight. </h1>

Some farmers base their traditional practices on cultivating rice seedlings, preferring to use the ashes of grass and trees in rural wood stoves to make rice seedbeds. Or use a mixture of grass and wood ash to cover the soil after rice sowing. This is actually very incorrect.

Picture: Specific mountain climates in mountainous areas have a greater impact on the occurrence of rice blight

Qingjiang Crane has been exposed to many on-site analysis of rice blight cases. However, almost all rice seedbeds made of rural firewood, grass, and wood ash have suffered from rice blight. Moreover, compared with the rice blight induced by low temperature and high humidity, there is a "feeling foot" in the difficulty of drug prevention and control.

There is also a cause of rice blight, that is, soil guest soil. Many people unconsciously fall into this "pit" but do not know it. As a result, after the rice blight was induced, it was not "like" to look for the cause everywhere. Qingjiang Crane once met such a customer, using guest soil as a cover of soil in the absence of soil disinfection treatment, and then the rice seedlings unearthed later "broke out" of the erection blight, and a week later the seedlings were completely destroyed, and the sprayed blight agent did not seem to play a little role.

<h1 class="pgc-h-arrow-right" > the "outbreak" of rice seedling blight is also related to insufficient light conditions. </h1>

To put it bluntly, the time for too little sunlight on sunny days is too short to meet the needs of light and temperature for the growth and development of rice seedlings.

Image: Plant growth regulators of different sizes and models

The commonly used agents for the prevention of rice drought and seedbed blight and their formulas are:

<h1 class = "pgc-h-arrow-right" > one of the recommended formulas: 30% soil fungus dehydrant and 0.01% hydroxyene adenine water agent and multifunctional foliar fertilizer rooting and seedling strengthening agent ternary compound stem and leaf spray. </h1>

Soil fungus elimination, also known as xyrrherol, is both a soil disinfectant and a systemic therapy fungicide. Indications for the treatment of fungal diseases such as blight caused by fungi such as rot mold and fusarium. After the drug, rice seedlings can not only promote growth, but also improve leaf photosynthesis, enhance photosynthesis, increase root fertilizer absorption activity, and enhance comprehensive stress resistance.

Soil fungus can also be replaced by 70% xyrrheptam wettable powder, or 30% xyrrheal beetle water agent, or 30% fine chlorpyrifos water agent. Hydroxyten adenine can also be replaced with other phytoclatins. Such as 0.000125% enoadenine water agent and the like.

<h1 class="pgc-h-arrow-right" > recommended formula no. 2: 25.9% kekuning water agent and 0.01% rapeselide water agent and multifunctional liquid IO% Baofengling ternary compound stem and leaf spray. </h1>

Photo: Rice yield is abundant and stable

Rapeselide is also called Tianfeng su, Yifeng su, nong li. It is a plant cytokinin. It has a role in promoting the planting height of rice seedlings and the growth and development of root system. It can enhance the photosynthesis of rice seedling leaves, improve the chlorophyll content of leaves, promote the root development and growth of rice seedlings, enhance the ability of root fertilizer absorption, and change rice seedlings from inferior growth to robust growth.

Kekunin has the appearance of blue water agent, which is a mixture (or compound preparation) based on copper citrate, which has a good effect on a variety of fungal diseases and has a certain stimulating effect on crops. It is a medicine that treats melon blight, vegetables, cotton, rice and other crop blight.

In addition, kekunin can also be replaced with 80% allicin emulsion or 80% allicin chloramphenicol emulsion or IO% double-acting elixir.

Photo: Robust field plant growth is the basis for rice to achieve abundant and stable yields

<h1 class = "pgc-h-arrow-right" > recommended formula no. 3: 70% dixon (dixone) wettable powder combined with watering to pour rice seedlings into the seedbed. </h1>

Dixon is a very good soil treatment agent, with good endository, can be absorbed by the roots and stems and leaves of rice seedlings, and maintains the medicinal effect for a long period of time.

For drought nursery seedbeds where rice seedbeds seriously lack moisture, it is very effective to solve the spread and development of rice blight by pouring rice seedbeds with dixon.

In general, 50% of dixone (dixone) wettable powder diluted 1000 times with water, 65% dixone wettable powder 1200 to 1500 times liquid, 70% dixone wettable powder 1500 to 1800 times liquid can be poured into the seedbed when the seedlings are one leaf and one heart.

If the weather is persistently low and there are plants in the seedbed with the center of blight, the dilution concentration can be increased to 500 times.

Photo: High-quality, productive rice plants