Variety selection. The main varieties of big-leaved spinach should be selected from the two varieties of “vanguard pioneer†and “all-roundâ€. Landscaping. Before the planting, the land was ploughed and the fields were leveled. At the same time, the building was built. The width of the plant was 2.6 meters, and the width of the plant was 0.25 meters and the depth was 0.2 meters. Proper sowing. Usually sowing in the middle and late September, sowing 9 lines per pole, spacing 25 cm, spacing 6 cm. Fertilizer management. Combine site preparation with basal fertilization, apply 1500 kg to 2,000 kg of farmyard manure per mu, import 40 kg to 50 kg of ternary compound fertilizer, plow till the soil, topdressing in the period of 5-6 leaves in the early stage of spinach growth, and apply urea per acre. 10 kilograms to 15 kilograms. Large-leaved spinach needs more water than other dry land crops, and the soil moisture content should be controlled in the soil by hand, and it should be spread out to the ground. Field management. After emergence, check whether there is no shortage of seedlings and ridges, and timely reseeding after discovery to ensure full seedlings and seedlings. Clean up the trenches, gutters, and trenches outside in a timely manner. Drain and sink in case of rain to prevent waterlogging. Large-leaved spinach has a high planting density, a small amount of space in the field, and a small amount of grass. Generally, it does not use chemical agents to remove weeds, but is manually removed to ensure that there is no weeding in the field. Pest control. The main disease that damages large-leaved spinach is downy mildew, which can be used in the early stage of spinach growth (5 to 6 leaf stages), 58% metalaxyl MnZn wettable powder 100g spray control 50 kg of water per acre, even spray 2 times. See locusts at the seedling stage, and control 15 g of 5% imidacloprid during the first dose. The interval between the last application and the harvest should be ensured for more than 30 days. China Agricultural Network Editor
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