In October, carrots will enter the period of rapid expansion of fleshy roots, that is, the peak period of economic production. It is also the peak period for carrots to require water. Therefore, the following aspects should be done in the field management.
1. Pouring (irrigation) water to resist drought: Drought has an adverse effect on the growth of carrots, especially the growth of fleshy roots. The growers should take necessary drought-fighting measures in a timely manner according to the actual situation. Keep the soil water content at about 70% of the maximum water holding capacity in the field (the soil is moist, the hands are pinched into a group, and the ground can be scattered). For those who use water in the ditch and infiltrate the soil, it is necessary to eliminate the water in the ditch on the second day.
2, after the application of swelled fertilizer: from mid-October to mid-November is the peak of carrot absorption, so in front of the 12 leaves (succulent roots and fingers when the water), timely application of phlegm fertilizer. The swelled fertilizer should focus on potassium fertilizer; according to the soil fertility condition, 10-20 kg of potassium sulphate compound fertilizer and 5 kg of potassium sulphate per mus are applied, and fully dissolved and poured. Spraying the fruit and strengthening the body to make the nutrient transport conduit of the underground fruit thicker, improve the fruit's swelling vitality, smooth fruit surface, strong fruit shape, high quality and high yield.
3, spraying foliar fertilizer: forcing the top of the branches of the plant to thrive the essential nutrient reflux, turning to the saturated supply of fruit reproductive development.
4, disease prevention and control of insects: some plots have more serious powdery mildew, you can choose 40% Fuxing 6000 times liquid or 80% standard dry suspension agent 800 times liquid or 15% triazolone 1500 times liquid or 30% rich Ling WP 3,000 times liquid spray control, 2 times in a row, 7 days apart. When the mites occur, they can be sprayed with 10% imidacloprid (one pass) 1500~2000 times.
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