The form of a cash cow
The flower stalk and inflorescence of cash cow are less than 20 cm in length. It is thin, light green and inconspicuous. Its flowering period is about 20 days, so it has no special ornamental value. But at home, Feng Shui is the best choice for many people. In recent years, cash cows have sold very high, with a few hundred yuan each, and the market is very good.
Growth habit of cash cow
Cash cows like warm, hot, slightly dry and semi-cloudy, and the temperature drops all year round. Drought-tolerant, but afraid of cold, strong light irradiation, soil adhesion, basin soil water accumulation. If the permeability of potted soil is poor, it will easily lead to tuber rot. The soil is required to be loose and fertile, well drained, rich in organic matter and acidic to slightly acidic. Its budding ability is very strong. After the thick pinnate compound leaves are cut off, new leaves can grow rapidly at the top of its tubers. The suitable temperature for its growth is 20 to 32. Whether it is potted plants or ground planting, it is required that the annual average temperature change is small. High-yield cultivation is best carried out in a temperature-controlled greenhouse. Every summer, when the temperature in the Yangtze River basin is above 35℃, plants will grow poorly. Measures such as covering the sun with a black net and spraying water to the surrounding environment should be taken to cool down and create a suitable and dry living environment for them. In winter, it is best to keep the greenhouse temperature above 10. If the room temperature is lower than 5, it will easily lead to plant chilling injury and seriously endanger its survival. In the winter of 2002, the outdoor temperature in Hefei suddenly dropped below -7, and the indoor temperature was below 3. A variety of cash cows at home or in the office were frozen to death. In late autumn and early winter, when the temperature drops below 8, it should be transferred to a well-lit room in time. It is safe and reliable to keep the temperature between 8- 10 throughout winter.
Key points of cultivation and management of cash cow
Cash cows like light and have strong shade tolerance, so it is necessary to create an environment with good sunshine but some shade. Direct glare should be avoided, especially in the scorching sun after a long rain in late spring and early summer, and it should be baked in strong light for 5-6 hours around noon in summer. Otherwise, it is easy to cause the freshly smoked young leaves to burn. Productive cultivation, from late spring to Mid-Autumn Festival, should be placed in a shade shed with 50% to 70% shade, but it should not be too dark, otherwise it will lead to slender young leaves and sparse spacing between leaflets, thus affecting the compactness and beauty of plants. The potted plants moved into the shed in winter should be given light. The balcony cultivation should be moved indoors several hours before and after noon in summer. In winter, potted plants should be placed in front of a well-lit window, not in an excessively dark corner, otherwise the leaves will turn yellow and be absent-minded. In the south of China, it should be placed in a well-lit room to avoid direct sunlight, keep the soil moisture in the basin dry, and topdressing the mixed solution of 0. 1% potassium dihydrogen phosphate and 0.2% urea once a month, so that the plants will not get sick for many years. The newly smoked pinnate compound leaves did not show obvious phototaxis, and still maintained a good plant shape. Therefore, it is suitable for indoor long-term display and appreciation. In order to maintain potted cash cows, efforts should be made to manage a humid and dry environment for them. Home balcony maintenance, if it is above the third floor, you can put potted plants on the wet sand table. Spray some water on the leaves at ordinary times to wash away the dust attached to the leaves and give shade at the same time. Indoor maintenance, when the room temperature is above 33℃, spray water on the plants once a day to keep the pot soil slightly wet. For productive cultivation, it is better to keep the pot soil slightly wet and dry for plants placed under shade shed because of their inherent strong drought resistance. However, if excessive water and fertilizer are occasionally irrigated, their roots will not rot due to floods. In winter, we should pay attention to spraying water on the blades and the surrounding environment, so that the relative humidity of the air can reach more than 50%. After the Mid-Autumn Festival, it is necessary to reduce watering, or to spray water instead of watering, so as to facilitate the safe winter of newly picked tender leaves. In addition, special attention should be paid to the pot soil not to be too wet in winter, and
Peat, coarse sand or washed cinder is often mixed with a small amount of garden soil, and its pH value is adjusted to 6-6.5, which is slightly acidic. Because of its huge tuber, developed root system and long pinnate compound leaves, it is advisable to use dark blue white porcelain pots or purple sand potted plants, but the lower part should be padded with stones, bricks or bark blocks, and the height is about 1/4 of the depth of the flowerpot, so as to create a good root system environment, ventilation and drainage. In the growing season, loosen the soil for plants once a month, and always keep the good air permeability of the cultivation substrate. Check frequently in rainy season. If there is water in the basin, turn it over and change the soil in time.
temperature
Cash cow prefers chemical fertilizer. In addition to adding a proper amount of baking cake fertilizer or multi-element slow-release compound fertilizer to the cultivation substrate, cake fertilizer can also be poured once a month during the growing season, or a mixture of 0.2% urea and 0. 1% potassium dihydrogen phosphate can be used. Potted money trees in the north of Huanghuai can also be added with appropriate amount of ferrous sulfate to prevent physiological yellowing of leaves. After the Mid-Autumn Festival, in order to make it overwinter safely, nitrogen fertilizer should be stopped and 0.3% potassium dihydrogen phosphate solution should be applied for 2~3 times continuously to promote the hardening and enrichment of young leaves and newly picked leaves. When the temperature drops below 15, all forms of topdressing should be stopped to avoid fertilizer damage and root damage caused by low temperature.