Using Chemicals to Prevent Early Rice Infestation

During the early rice raising period, the temperature fluctuates and the cold wave activity is frequent. This varied weather is not conducive to the emergence and growth of dry seedlings. In the field environment of the early rice seedlings, it is easy to produce a variety of seedbed diseases that are different from the water seedlings. Therefore, it is imperative to strengthen the identification and prevention and control of early rice seedling diseases.
I. Seedlings in the conditions of dry seedlings, due to mulching, high temperatures in the film, humidity is also suitable for the occurrence of rice blast; dry fertile soil for ferry beds, usually acidic soil, will increase its harm; seedlings grow in waterless In the layer of soil, the absorption capacity of water-soluble silicates is reduced, silicic acid accumulation in the epidermis cells is less, the resistance is poor, and the pathogens are easy to invade; the dry seedlings grow green and they are also vulnerable to rice blast. Based on the above reasons, dry seedlings are generally prone to seedling emergence, and in the promotion of dry seedlings, it is necessary to do a good job of seed treatment. 0.5-1% lime water can be used for seed sterilization. If strong chlorine is used to sterilize the seeds, 300 times of the liquid is generally used. Wash the seeds immersed in clean water for 12 hours and pour them into the solution for 12 hours. After the emergence of seedlings and leafhoppers, the mulching film can be peeled off. The spray can be evenly sprayed with 20% tricyclazole wettable powder 50-75 grams per acre, which can effectively control the damage.
Second, the yellow (white) disease in the early stages of the onset of seedlings thin leaves, pale leaves, tender yellow, new roots, the new color of the leaves is lighter, heavy white, leaves the slow. There are two reasons for this: First, the drought-fed seedlings are exposed to a relatively long period of low temperature after they are uncovered. The chloroplasts are disintegrated and yellow (white) is prone to occur. Second, under conditions of dry and infertility, deficiency of chlorophyll, particularly iron deficiency, will cause deficiencies in chlorophyll formation and yellow (white) disease. Yellow (white) disease caused by low temperatures, when the temperature rises, the seedlings can slowly return to green. Dry Yuyu Green No. 1 and Dry Yuyu No. 3 had good control effect on the disease. The leaves were sprayed with 600-800 times of dry Yuyu No. 1, and the seedlings turned green after 2-3 days. Spraying ferrous sulfate also has a certain effect.
Third, the yellow seedling seedling disease caused by the excessive drought or uneven fertility caused the disease. The symptom is that the young leaves of the young seedlings begin to yellow and expand toward the leaf base, and the yellow color is slightly reddish orange. The new leaves are born slowly but the color is normal. The seedlings are not stiff but generally do not die, but they tend to turn dry. disease. The key to prevention and control of the disease is to pay attention to fertilization, timely watering after onset of disease, and add appropriate amounts of enemy pine to prevent the occurrence of blight.
4. Rhizoctonia This disease is an infective disease caused by fungi. It can make young shoots and young roots brown, distorted and rot. The roots of two-three-leaf diseased seedlings are dark white, with intermittent yellow-brown necrosis, and stem bases. Browning, softening and rot, the tip of the leaf stops spiting, and then the heart leaves are wilted and curled. The whole plant is yellow and brown withered, or the whole plant is quickly blighted. The base of diseased locusts has white, pink or grayish moldy lumps; often clusters and agglomerates occur, and there are obvious episodes of disease; generally, they are divided into two types: blue-green, dry-yellow. In the two-leaf stage of the seedlings, the presence or absence of spitage at the tip should always be checked. If there is no dew on the tip of the leaf, it is a precursor to the onset of blight and should be treated immediately with the enemy. 65% of the enemy is sprayed with 65% Dukesson WP. When dispensing, add a small amount of water to make a paste, then add water to dilute it so that the drug is fully dissolved, and be careful not to mix it with alkaline pesticides when using Dixon.

Taizhou XingWang Aquatic Product Co., LTD was established in April 2000 which approved by industry and commerce. It's a comprehensive enterprise of offshore fishing of aquatic products, frozen aquatic products processing.research and development and agricultural products cold-chain logistics.

The registered capital of company is 51.88 million Yuan, total area of company is 72500 square meters including with processing area more than 20000 square meters, refrigerated area about 25000 square meters, cold storage about 50,000 MT.The average number of employees are more than 6 hundreds. Total assets of company is 300 million yuan,annual sales revenue is over 500 million yuan.

We own 7 distant fishing vessels, 14 sea-frozen processing vessels, the annual processing of various types of aquatic products amounted to 100,000 tons. The company main engaged in sea frozen mackerel, sea frozen tuna, sea frozen bonito, also focus on the canned fish, fish loin and octopus etc.

Including:Main Products,Frozen Fishes Mix,Frozen Fishes Portion,Frozen Seafood Mix

Key words: Frozen Fresh Seafood, Frozen Seafood Whole Sale, Aquatic Product Whole Sale

Frozen Seafood

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TAIZHOU XINGWANG AQUATIC PRODUCT CO., LTD. , https://www.tzxingwang.com