Inner Mongolia Arong Banner: Corn Field Management Measures

Maize seedlings are very important. The key to the field tube at this stage is to properly control the growth of the stems and leaves, and promote the development of the roots, that is, "control up and promote", reaching the roots, the stems are thick (flat), the leaves are dark green, the leaves are wide, thick and strong, individual Robust, strong and not prosperous, the group is neat. 1. There are currently problems: 1. There is a shortage of seedlings and ridges. 2, the size of the seedling phenomenon is outstanding. 3. Occurrence of herbicides. 4, some fields are thick and severe. 5. The density of some fields is too large. 6. Some fields have suffered from severe drought. 2, technical measures 1), check seedlings to replenish seedlings, ensure that the whole seedlings, timely seedlings. The lack of seedlings is serious, it is necessary to bring soil transplanting, watering and rooting to ensure survival. At the 5 leaf stage, the seedling density was determined according to the characteristics of the variety. 2), timely tillage. Timely cultivating loose soil, breaking the knot, eliminating weeds, and playing the role of “controlling the next”. 3) Rational regulation and cultivation of strong seedlings. 1 Chasing seedlings and eccentric fertilizer. For those who have not applied the base fertilizer, they can apply the seedling fertilizer at the 5-leaf stage, and chase 15-15-15 ternary compound fertilizer 40 kg; if there is “flower white seedling” in the seedling stage, it can be sprayed with 0.2% zinc sulfate leaf surface. In the roots, the application of zinc sulfate, 0.2-0.4 grams per plant, 1-1.5 kilograms per acre; for large and small seedlings, the eccentric fertilizer should be applied. 2 pairs of density is too high, the growth of the field is relatively strong, in the corn 8 to 12 leaf development period, the use of corn dwarf Fengbao for foliar application, to prevent corn lodging has a good effect. However, in the process of chemical control, we must master the principle of “no spray, no spray, no spray, no spray, no spray, no spray”, and strictly follow the product specifications. 3, timely removal, master the method. Chemical weeding after corn seedlings is generally carried out in the 3 to 5 leaf stage of corn. The whole field can be sprayed before 5 leaves; after spraying, remove the spray after 6 leaves, use a protective cover, lower the spray head, and carry out directional spray. Do not pour the liquid. In the corn heart, prevent phytotoxicity. In addition, spraying the herbicide containing nicosulfuron must be separated from the organophosphorus pesticide for more than 7 days, otherwise it will cause phytotoxicity. Special attention is paid to the use of nicosulfuron-type herbicides in popcorn, sweet waxy corn and sea-going series corn. 4, rough disease prevention and treatment. In the 4~5 leaf stage of maize, spraying pesticides such as sputum and avermectin to control the planthoppers; in the case of 5-7 leaves, it can be used with phytopathogenic, Fuer's venom, virus A and gibberellin. Plant hormones such as Ling have a certain inhibitory effect on corn rough disease. 5, drought resistance and drainage. To ensure the moisture needs of corn, we must also pay attention to the drainage of large water.

Imported Plastic Additives

Imported Plastic Additives,Pvc Additives Distributor,Plastic Additives,Environmental Friendly Plasticizer

Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com