The entire growth and development process of maize is divided into seedling stage, jointing and booting stage, and flower and grain stage. The quality of jointing and booting stage management has a greater impact on the yield of corn. The central task of the jointing and booting stage is to coordinate vegetative growth and reproductive growth, appropriately control the length of stems and leaves, and promote plant leaf strength, large ears, and more grains, which can effectively increase the yield of corn. The technical measures are: Corn enters the jointing and booting stage, that is, the big bell mouth stage, which is sensitive to moisture to prevent "neck drought". In the middle and late stages of maize growth, plants require large amounts of water, but lack of water leads to poor fertilization, premature aging of leaves, decreased photosynthesis and nutrient transport capacity, increased aborted kernels, and decreased kernel weight. When the relative water content of the soil is lower than 70%, it is necessary to water it in time to avoid the reduction of production caused by drought. In case of heavy rain and accumulated water, waterlogging should be drained in time, especially during the grouting period, and more attention should be paid to flood control and drainage. The second is chemical control and prevention When corn leaves grow to 9-12 leaves, spray with corn dwarf to prevent corn overgrowth and control corn plant height. The third is topdressing ear fertilizer At the stage of jointing to the end of booting ear, the fertilization period is generally at the 10-12 leaf stage (that is, the big bell mouth stage), which can ensure plant growth, promote ear development, promote floret differentiation, and increase the number of grains. Nitrogen fertilizer should be used as the main fertilizer, 25-30 kg of urea per mu. The fourth is to prevent and control pests Use chlorothalonil, agricultural streptomycin and other chemicals to spray to prevent top rot and bacterial stem rot. To prevent and treat large and small spot diseases, you can use Tuejunte wettable powder and chlorothalonil wettable powder to spray water, spray once every 7 days, and spray 2 to 3 times continuously. To control corn borer, use soluble phoxim, chlorpyrifos, or Bt granules to mix the poisonous soil with fine soil and sprinkle it into the corn heart leaves. How to prevent corn from growing? The best application period of corn prosperity control agent is the 6-10 leaf stage of corn, that is, the "foot height" of corn to the "knee height" of corn. This period is the early stage of jointing of corn. The space is shortened, the height of the ear is reduced, and the number of layers and the number of "bawang roots" is increased, which can effectively prevent corn from lodging, and promote the movement of nutrients to the ear, reducing empty trees and bald tips. When the corn is less than 6 leaves, the stalk is not flourishing and the stalk is too low due to the early control. If the corn prosperous control agent is applied too late, the number of leaves exceeds 12, and the corn has passed the jointing period, it will cause the following problems: 1. Incorrect shrinkage of corn Originally, the base 1-3 internodes should be shortened, but now the 4-5 internodes in the middle are shortened compared to the base 1-3 internodes. Not only can it not effectively prevent corn lodging, but it also leads to poor corn growth and reduces corn production in the later stage. 2. Affect corn ear differentiation Maize tassels begin to differentiate after jointing. If the growth of corn is controlled at this time, it will affect the differentiation of maize tassels, resulting in a small amount of corn talcum pollen, which will affect maize pollination and finally affect corn yield. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for handling. phone Assorted Spices,Assorted Chili Pepper,Assorted Spices Recipe,The Assorted Spices jiangmen city hongsing food co., ltd. , https://www.jmhongsing.com
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