(1) Strong sunlight and direct sunlight easily lead to yellowing of leaves.

(2) Improper watering Asparagus likes humidity but is afraid of waterlogging, so it should be cultivated in breathable and permeable sandy soil.

(3) Asparagus doesn't like fertilizer if it is not fertilized for a long time, and it is easy to peel if it is fertilized for a long time, but it will also cause insufficient nutrients. Should be watered once every half month, pay attention to watering and loosening the soil in time after fertilization.

(4) Improper fertilization, such as applying original fertilizer or excessive fertilization, will make the leaves fall off. At this time, the basin soil should be washed and diluted with water in time, or the soil should be changed immediately for preservation.

(5) The winter pipeline with poor winter should be placed in a sunny place indoors, and the room temperature should be kept within 8- 12 degrees. Long-term shady, room temperature below 8 degrees, will lead to yellowing of leaves.

(6) Asparagus polluted by smoke is most afraid of smoke and harmful gases, so it should be maintained in a place with good air circulation to avoid pollution. You should also spray water on the leaves to wash away the dust.

Supplement:

Asparagus is lush, like blue clouds overlapping, quiet and beautiful. Black bamboo, whose real name is Asparagus, has soft branches and green leaves, which lead vines to stretch like running water. Asparagus and Phyllostachys pubescens are perennial herbaceous flowers of Asparagus in Liliaceae, which are native to southern Africa and have a history of nearly 100 years in China. They are cherished by China people, entered thousands of households and placed in their rooms. Erzhu is also an important material for flower arrangement, and lapels, flower baskets and bouquets are widely used, which set off artistic flower arrangement and make it more beautiful.

Asparagus roots are semi-fleshy, and slender stems climb 2 to 3 meters. Leaves degenerate into scales with stalks, and the apex is prickly; The leaf is actually a perverted branch. Each lateral branch is pinnately flat, forming an elegant cloud. The flowers are small and white, the berries are spherical and the seeds are black. The main variety is dwarf asparagus, with short and upright stems, weak or no vines and dense and short leafy branches.

Asparagus likes mild climate, not cold and heat resistant, and avoids drought. The basin soil needs to be moist, and the environment should also be moist. Avoid floods. I am afraid of the scorching sun in spring, summer and autumn, and the indoor light will be scattered in winter. Potted soil requires sandy culture soil with rich humus and strong drainage and air permeability. Usually sow and reproduce. Breeding by dividing plants, big plants are not easy to grow strong and survive. The seeds mature from February to April of the following year, and can be planted with sand in the nursery basin with the spacing of 1 to 2 cm. Covering soil is equivalent to 1 seed thickness. After sowing, water it, cover it with glass, cover it with newspaper and put it in a well-lit and ventilated room at about 20℃. After 30 to 40 days, remove the cover and put it in a diffuse light place. When the seedlings are full, they can be planted separately. Knock out the whole seedling, break it, add 20% decomposed manure with ordinary culture soil or plain sand, and put it into No.2 or No.3 cylinder basin. One plant in each pot should be sprayed with water after planting and watered the next day. After the end of spring, as the temperature rises, it should be maintained in the shade outside. Pay attention to keep the environment fresh and moist, and apply dilute liquid fertilizer every 10 day. Early sowing can be formed in July, or the first pot can be changed in August, and 20 grams of hoof pad can be used as the base fertilizer. In early June, 65438+ 10 will enter the house, and plump plants will grow on New Year's Day.

To collect the seed asparagus mother plant, it is necessary to take the 2-year-old strong big plant out of the pot and plant it in a corner of the greenhouse. The soil should be loose and fertile, and the hoof can be used as base fertilizer to make the branches and leaves stretch and climb. Management should be meticulous, water and fertilizer should be moderate, and flowers will begin to bloom in July. Pay attention to fresh air circulation during flowering period, moderately control the amount of water to prevent falling flowers. In high temperature season, the greenhouse should be shaded by curtains, and all the front and rear doors and windows should be opened to cool down to ensure the mature harvest of seeds.