Matters needing attention in asparagus cultivation

(1) If the new shoots of asparagus are found to be yellow, 20 times of liquid fertilizer or 1000 times of urea solution should be topdressing, and the morning and evening light should be appropriately increased.

(2) Asparagus is warm, moist, semi-cloudy and not cold-resistant. Jiangnan area can't overwinter in the open air. Potted asparagus should be placed in a semi-shady place in summer and autumn, and indoors in winter, facing south and facing the sun.

(3) Potted asparagus should be planted in loose and well-drained sandy soil containing humus. To cultivate asparagus, it is best to choose a clay tile basin with good drainage and gas-making performance, and rent sand and stones as drainage layers to discharge in the lower layer.

(4) Fertilization and watering are the keys to the cultivation and management of potted asparagus. Avoid rain and direct sunlight. Otherwise, asparagus buds will wither and plants will turn yellow. Don't apply thick fertilizer during the growth period, apply thin and light fertilizer according to the growth situation of seedlings, control nutrients, avoid excessive growth of plants, and maintain beautiful plant shape. Generally speaking, every 7 ~ 10 days, fully fermented liquid cakes (bean cakes or vegetable cakes), 30% fertilizer and 70% water should be applied. If the plant grows vigorously and shoots, it can be properly supported or pruned.

(5) Asparagus likes humidity, but it should not be watered too much, so that the accumulated water in the basin can not be discharged for a while, the roots are easy to rot, and even the plants die. If there is less water, drying in the basin will also cause the leaves to turn yellow or the tips to burn. So whenever the soil surface turns white, it needs watering. The general standard is that after water is poured thoroughly; Water can be discharged from the bottom of the basin quickly. It is best to be slightly wet in the high-temperature growth season and dry in the low-temperature dormancy period. It is advisable to spray leaves in hot summer, and wash them with water close to room temperature in winter to keep them clean and full of vitality.

Cultivation method of asparagus

Asparagus likes warm and humid climate and semi-cloudy environment. Afraid of direct sunlight, strong sunlight in summer will turn the branches and leaves yellow. Not cold-tolerant, but also afraid of heat, the suitable growth temperature is 15 ~ 25℃, and the summer temperature exceeds 30℃, which will make the branches and leaves yellow. 10 year 10 is indoor in the cold area in the north in early October. The wintering temperature in winter is 10℃, and it will suffer from cold damage below 10℃. Not drought-tolerant, the basin soil should always be moist during the growth process. Asparagus has strict requirements on potted soil, which requires loose, fertile and well-drained soil, and is generally prepared with humus soil, river sand and decomposed organic fertilizer.

1. Selection of flower pots for asparagus cultivation

(1) flowerpot quality requirements: clay pots, plastic pots, porcelain pots and pottery pots can all be used for cultivation.

(2) flowerpot size: Asparagus can be planted in a pot with a pot diameter of 14- 18 cm. Now they are all cultivated in flat bonsai pots.

2. Pot cultivation method of asparagus

When the seedlings grow to more than 5 cm, they can be planted in pots with a diameter of 7 ~ 10 cm. Pot soil should be mixed with humus soil 5 parts, garden soil 2 parts, river sand (sandy soil) 2 parts and decomposed manure 1 part.

Asparagus is a flower cultivated for many years, but it should be changed 1 time every year before germination in early spring, and the old soil should be removed and replaced with new culture soil; According to the plant size and growth, change to a bigger pot or use the original pot; Cut off dead branches and yellow leaflike branches to keep the beautiful plant shape.

3. Watering method of asparagus cultivation

Watering is the most critical problem in asparagus cultivation and management. Therefore, watering has become an important measure to raise asparagus. Too much watering and too wet pot soil can easily cause root rot and yellow leaves falling off; Too little watering, long-term dry pot soil, easy to cause the tip of the yellow fall off. Therefore, the amount and frequency of watering during the growing period depend on the weather, growth conditions and the dry and wet conditions of the basin soil.

Watering should master the principle of "seeing dry and seeing wet". Do not water it, but water it thoroughly. That is, when the surface of the basin soil is dry, water should be poured to the bottom of the basin; You can't water "half water", that is, the water only wets the topsoil, and the soil below is dry, resulting in the root system at the bottom not absorbing water, so the branches and leaves will turn yellow. When the weather is dry or hot, in addition to keeping the soil moist, it is also necessary to regularly sprinkle water on the ground around plants and spray branches and leaves with clear water to increase air humidity. In winter, we should control watering, reduce watering times, and spray water close to room temperature to the branches and leaves every 5 ~ 7 days to keep the plants green and fresh.

4. Light requirements for asparagus cultivation

Asparagus is a shade-loving flower and grows well under scattered light. The sunshine is not strong in early spring and autumn, so it is good for growth if it is placed in a sunny place indoors. Put it in the sun in winter; After entering summer, it can be moved to a cool place outside from direct sunlight or a place with bright scattered light indoors.

5. Fertilization method for asparagus cultivation

Asparagus likes fat. In order to make plants grow healthily, in spring and autumn, a fully decomposed rare organic liquid fertilizer can be applied once every 15 ~ 20 days, or nitrogen, phosphorus and potassium fertilizer can be topdressing, and the mixed solution of 0. 1% urea and 0. 1% potassium dihydrogen phosphate can be topdressing; Stop fertilizing in hot summer and winter. However, fertilization should also be controlled during the growth period, so as not to grow vines in vain, destroy the plant shape and affect the ornamental effect. To make plants low, it is necessary to apply less liquid fertilizer, especially less nitrogen fertilizer.

6. Four seasons management of asparagus cultivation

(1) spring management

In March and April, change the old asparagus plants, and trim them properly before changing the pots. Because asparagus likes humid environment, it can be decorated indoors for a long time. However, due to the low indoor air humidity, attention should be paid to increasing the indoor air humidity.

The temperature is suitable in spring, asparagus grows vigorously, and the seedlings can be topdressing 1-2 times to ensure adequate water supply, and at the same time pay attention to increasing air humidity, otherwise the leaf color will easily age and fall off, which will affect the appreciation.

(2) Summer management

In summer, asparagus can be arranged in bright indoor light, keep the soil moist, sprinkle more water around it, strengthen ventilation and cool down, and do not apply fertilizer.

(3) Autumn management

After the temperature is cool in autumn, asparagus will grow again, and attention should be paid to the supply of water and fertilizer and the supplement of air humidity. After the temperature drops in late autumn, we should pay attention to keep the indoor temperature, gradually move asparagus to a place with light by the window for cultivation, reduce watering times and keep the pot soil moist.

(4) Winter management

Asparagus is not cold-tolerant, the temperature below 5℃ will cause defoliation, and the room temperature should be kept above 5℃. At this time, asparagus is in a state of growth stagnation, so it is necessary to ensure a certain amount of light, reduce watering, do not apply fertilizer, and let the pot soil dry slightly.

If the room temperature is kept above 10℃, asparagus can also grow normally, so the pot soil should be moist and not fertilized.