After many years of practice, the farmers of Hekou Village, Tainan Town, Dongtai City have found out that a set of Sagittarius early maturing techniques has allowed Sagittarius to go ahead with the listing from late August to early September. 500-600 kilograms of Sagittaria are produced per mu. First, nursery selection Baoying scrape Laowu, Suzhou yellow Sagittarius varieties. Choose fertile lands with leeward sunlight and near water as breeding grounds. In combination with site preparation silt as base fertilizer. In the middle and early March, the selected Sagittarius will be stunted and planted at a spacing of 5 cm and 5 cm in diameter. The planting depth will be half of the length of the top bud, and about 20 kg of Sagittaria bud should be prepared for each mu of field. Immediately after the planting, filming. The plants maintained a shallow water layer during the budding period. 2-3 leaf topdressing 1-2 times diluted manure. Pay attention to ventilation after hardening seedlings. Second, transplanting can be used to fertilize low-lying fields for planting Daejeon. Before transplanting, 25,000 kilograms of high quality manure or 3000 kilograms of green manure was applied per acre, and 35-40 kilograms of ammoniated phosphate fertilizer was added. The soil was ploughed and ploughed, and then the shallow water was poured after the leveling. In mid-April, the seedlings were raised from the nursery and the outer leaves of the seedlings were removed. The petiole was left 20 centimeters long, and then the Sagittaria seedlings were planted in the field at a row spacing of 1 meter and 16-20 centimeters in spacing. The planting depth was 10 centimeters per mu. Plant 3300-4000 strains. After planting, a layer of thin water is poured and shallow water is used for ground irrigation. Third, the field management plant transplanting 7-10 days live after top dressing 1, 10 kg of urea per acre or human waste 1 000 kg. In the middle of July, top dressing was performed once again. 70-75 kg of ash per acre and 100 kg of ammonium bicarbonate promoted bulb enlargement. Early plant growth should be properly put aside, and the extent of putting a field is not suitable for the field. Timely weeding and stripping of old yellow leaves and some lateral buds on the plants enhanced field permeability. IV. Pest Control Pests The main pests and diseases of Sagittaria are smut, aphids and aphids. Black powder can be used 25% carbendazim 500 times, or 75% chlorothalonil 600-800 times, or 25% Triadimefon 800 times spray control, spray every 7-10 days, even spray 2-3 Times. Aphids can be sprayed with 40% Dimethoate 1500 times. Aphids can be controlled with 25% insecticide 600-800 sprays. China Agricultural Network Editor
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