Cultivation Techniques of Asparagus in Summer

1. The F1 generation of "Lulu No. 1" and "Lvfeng" green asparagus cultivated by China asparagus Research Center are suitable for planting in our province. 2. The selection of nursery land for planting asparagus per mu generally requires a nursery area of 2530 square meters. After the wheat harvest, a piece of land with flat terrain, easy watering and no perennial weeds can be selected to raise seedlings in the field. When raising seedlings, apply sufficient bottom fertilizer on the seedling ground, turn it over again, and then draw a ditch with a distance of 10 cm. Sow a seed every 10 cm in the trench, with a depth of 2 cm to 3 cm. Rake the surface flat after the on-demand. In case of heavy rain, you can sprinkle a small amount of wheat straw on the surface of the seedbed to prevent rainstorm erosion and high temperature. Third, seedling management when the first stem of asparagus grows leaf-like, it should be fertilized once. Give priority to quick-acting fertilizer, apply about 25 kg of diammonium or compound fertilizer per mu, and pour water once at the right time. In the future, weeding, watering and waterlogging will be timely according to the situation. Hold the wheat straw when the asparagus seedlings grow to about 10 centimeters. When the seedling age reaches more than 60 days, the aboveground stem reaches more than 3, the height is more than 30 cm, and the pseudo-leaves turn dark green, they can be planted in the field. Fourth, it is the planting season to plant asparagus seedlings raised this spring. After the wheat harvest, apply 250 kilograms of organic fertilizer per mu, turn it over again, and plant asparagus seedlings in trenches. The general depth is 10 cm from the surface of the bulb disk of asparagus. Green asparagus is generally planted at 2500 to 2800 plants per mu, while white asparagus is planted at 1800 to 2000 plants per mu. It is generally planted in the north-south direction and watered in time after planting. Asparagus seedlings cultivated from June to August can be planted after harvest of autumn corn or in the spring of next year. 5. Reasonable interplanting asparagus is a perennial root plant, which can be harvested continuously for 10 to 15 years at one time. The row spacing of the planting year is wide, and some dwarf vegetables can be interplanted according to the season, such as cabbage, Chinese cabbage, carrots, rape, spinach, etc., and some dwarf legume crops, such as mung beans and adzuki beans, can also be planted.