Landfill Fertilizer Fertilizer To grow carrots, choose a deep, fertile, organic-rich, well-drained loam or sandy loam soil with a depth of 25-30 cm before sowing. Carrot seed is small, planting plots should be deep-ripening ripening earlier, shallow ploughing and sowing before sowing, cultivating too shallow fleshy roots are prone to bending, cracking roots and fork roots. Combining ploughing and pulverizing per acre, the crushed and rotted high-quality heap fertilizer has 2500-4000 kg of fertilizer, 10-15 kg of diammonium phosphate, and 100-150 kg of plant ash. Site preparation after ridge sowing. For magnesium-deficient soils, calcium magnesium phosphate fertilizer should be used instead of diammonium phosphate as base fertilizer, or multiple compound fertilizers can be applied to increase the content of boron, magnesium and other elements in the soil. Before sowing, 90% crystals of trichlorfon per acre were mixed with 4 kg of wheat bran and spread evenly on the ground to trap and kill underground pests.
Clever application of top dressing carrots to 3 true leaves, the time of the seedlings, to weak seedlings to retain seedlings. After cultivating the seedlings, weeding, weeding, watering, and early-onset seedling promotion, the seedlings are strong and solid. Generally after 7 to 10 days after seedlings, combined with pouring small water, urea 2.5 ~ 3 kg per acre. Carrot 8 to 9 leaf stage (in the early stage of meat root expansion), is the period of the most fertilizer and water, the need for timely watering and fertilization to keep the soil moist. Generally apply 10 ~ 12.5 kilograms of urea per acre, or use a thin manure urine liquid fertilizer 2500 ~ 4500 kilograms. 25 to 30 days before harvest, 2.5 to 3 kg of potassium dihydrogen phosphate per acre, and 100 to 125 kg of water sprayed. Boron-deficient soil was sprayed once every 0.1 to 0.25% borax or boric acid solution during the rosette stage and fleshy root expansion stage. In the root swelling stage of carrots, the carrots are prosperous over the ground and sprayed with 15% paclobutrazol wettable powder 1500 times, which can increase the yield.
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