Dry seeding and seedling cultivation of "five customs"
Three days before sowing, the crops were sown and 20 kg of compound fertilizer in Mita, 50 kg of superphosphate, and 15 kg of potassium chloride were used as base fertilizer. Immersion seed germination off seeds should be strictly disinfected, generally 25 to 30 kg with 0.01% potassium permanganate solution soak 1 to 2 days, and then heat preservation germination, grain seeds can be planted after breaking the chest. Timely sowing early rice generally choose sunny days before and after the "seizure". Seedling management in the seedling stage should be based on thermal insulation and neat emergence. Water management can prevent the surface soil of the seedbed from whitening, but it is not possible to spray water. One leaf stage controls the wetness. When the seedlings are all needles, it is better to use 0.2 grams of paclobutrazol to water 150 grams per square meter to spray and control the grower. In the second leaf stage, dryness should be the main factor, and deep rooting should be promoted. In the three-leaf stage, weeds should be kept moist. When the seedlings grow to two-leaf and one-on-one, we will top-up one “weaning fertilizerâ€, and use 8 kg of urea, 25 kg of superphosphate, and 6.5 kg of potassium chloride to dilute into a 1% solution. Apply or shower, spray water after application. Replanting basal fertilizer and timely transplanting generally 1500-2000 kg of mu water, 10 kg of urea (or 20 kg of ammonium bicarbonate), 25 kg of superphosphate and 5.5 kg of potassium chloride. When the seedlings grow to 4.5 leaves, grab the sunny plug.