1. The cultivated land must be selected for cultivation in a deep, rich organic matter, good ventilation, drainage and irrigation conditions, water retention, and retention of good sandy loam. Avoid heavy clay, shallow ploughing, high groundwater levels, aquatic crops growing around the field, and plots of uncultivated Liliaceae crops.
2. The quality of seedlings and the quality of nursery seedlings are the key to ensure the survival of asparagus and the robust growth of plants. Strong seedling standards: The seedling age is 70 days, the plant height is 20 cm, the number of plants is 2-3, the underground root system is 4-5, and the stem diameter is 0.2 cm. At the same time, the seedbeds were soil-sterilized before transplanting, ie 40% “8701†gel suspension was sprayed 800 times, and large and small seedlings should be transplanted separately during transplanting. Remove field weeds and transplant with mud.
3. Fertilizing asparagus fertilizer is a perennial fertilizer crop, and basal fertilizer is of vital importance. For this purpose, sufficient organic fertilizer should be applied before machine tillage. Generally, 30-50 gram of high-quality organic fertilizer per gram and 50 kg of compound fertilizer should be used.
4. Transplanting
4.1 Transplanting time: Transplanting time should be determined according to the previous crop. The regular transplanting time is from mid-June to mid-July, and it should be selected on cloudy days to increase the survival rate.
4.2 Transplanting density,; Transplanting density directly affects the yield of asparagus. The optimum density of asparagus does not affect the yield within 5-8 years. Based on years of experiments, 1500 strains per mu are the best density.
4.3 Transplanting: According to row spacing 1.5 meters (if transplanted to the greenhouse, two rows of asparagus on both sides of the greenhouse should be moved 30 cm inward), planting 30 cm spacing for transplanting, scale buds should be maintained in a straight line when transplanting, and The growth direction of the scale buds and the planting ditches are in the same direction so that each row of underground stems develops on both sides in a more consistent manner, so that the position of the pumping tender stems can be concentrated in the center of the earthworms.
4.4 Transplanting Depth: After transplanting the horse into a horseback type, the depth of transplanting (squash buds to the ground surface) is controlled at 2-3 cm. After transplanting, the water is poured on the live tree water to shorten the period of seedling sowing and guarantee the asparagus. Stay alive as soon as possible. However, it should be noted that when transplanting, transplanting must be done with a single tree. At the same time, the spreading direction of the plate disc should be the same as that of the planting line when transplanting.
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