A, asparagus planting methods asparagus cultivation techniques
1, treatment of seeds (1) First of all, the seeds will be soaked in warm water (25-30 ° C) for 3-5 days, you need to change the water 1-2 times a day, when the seeds to absorb enough water and then fished out. (2) Put the seeds into the container and mix with fine sand or vermiculite, then cover with a wet towel and put them in an environment with a temperature of 25-30°C for germination, turning 2 times a day, when the seeds show white, they can be sown. 2, seedling (1) preparation of nutrient soil: preparation of decomposed farmyard manure 30%, 30% of grass charcoal, 20% of the old furnace ash, 20% of farmland soil (no pesticide residues), but also to add diammonium phosphate 50g/kg nutrient soil. (2) the use of nutrient bowl seedling: prepare the size of 8 × 12cm nutrient bowl, each nutrient bowl in the sowing of 1 seed, sowing depth of 2cm, followed by mulching 2cm and watering. (3) temperature and humidity management: the appropriate temperature for asparagus germination is 25-28 ° C, after the emergence of seedlings, the temperature is 25 ° C, should not be higher than 30 ° C, should not be lower than 8 ° C, the soil will be kept in a moist state. Because the root system of the newly emerged seedlings is relatively weak, they need timely watering in times of drought, and also pay attention to weeding. (4) Preparation before planting: 7-10 days before planting reasonable ventilation refining, so that the asparagus to adapt to the external natural environment, to achieve the standard of healthy seedlings, the requirements of the above ground stems more than 3, underground storage roots 5-7. 3, planting (1) Selection: choose high terrain, smooth drainage, deep soil, loose soil and loose air permeability, rich in organic matter sandy loam. (2) Fertilizing: Turn the land 20-25cm deep and start a ridge, the width of the ridge is 1.2-1.4m, per acre, but also into the rotted farmyard manure 3000kg, ternary composite fertilizer 25kg as a base fertilizer. (3) planting: planting spacing is generally 30-40cm, you can use a shovel to dig out the planting ditch, 30cm deep, 30-40cm wide, in the ditch into the ternary composite fertilizer 25kg + organic fertilizer 1500kg (per acre), and mixed evenly, and then sprinkled into the topsoil with a thickness of 10cm, the requirements of the ditch center is a little higher. Then put the asparagus seedlings into the ditch, big strong seedlings 1 plant per hole, weak seedlings 2 plants per hole, followed by mulching and watering. In the subsequent growth process of asparagus, you need to reasonably plow and weed, but also pay attention to the control of pests and diseases.Two, asparagus planting time
1, planting time General can spring in April-May planting asparagus, if the greenhouse planting can generally be planted in August-September, but the specific planting time also need to be based on the actual situation of each place. 2, planting conditions (1) light: asparagus likes light, the demand for light is relatively large, if the light will affect the growth of insufficient light, so in the growth process of asparagus need to provide it with enough light, to avoid affecting the yield. (2) water: asparagus is more drought-resistant, water retention capacity is also relatively strong, but in the picking of asparagus can not appear water shortage phenomenon, if the lack of water will affect the yield, so the need to keep the soil in a moist state, but the field can not have stagnant water, to avoid composting and rotting of the phenomenon.