Potted Plum Notes

1. Potted plums should be better in tile pots and pottery basins with good permeability, and purple clay pots could also be used to crush charcoal pieces or broken hard plastic foam blocks in the pelvic floor cushions. The matrix is ​​made of fertile, light-viscous soil, which can be mixed with Laoshan mud, pond mud and vegetable garden topsoil. When planted, the soil is mixed with bone meal, NPK fertilizer as base fertilizer, and the planting should be shallow without rooting. Deep planting is not easy to flower, after planting semi-shade place, pouring once permeate, after 10 days into normal management. 2-3 years after flowering, change soil once.

2. Plum Xirun afraid of waterlogging, timely and appropriate watering. In winter and early spring flowering season, it is better to keep the pots and soils running normally. After the flowers are fully thanked, they are poured with water once. Do not pour, and often spray water to the branches and nearby grounds in the evening. During the rainy season, strict water control is required. When the old leaves are slightly reeled, the tender shoots will be watered when they are slightly wilting. This repeated several times will force the new shoots to stop, which will help flower bud differentiation; Pour water once, and pour it once a day as soon as it is dry and prevent it from dehydrating. After 9 months, gradually reduce the amount of water. Pour 1-2 days in the afternoon and pour water once. In October, flower buds begin to sprout as buds and leaves. Has been falling, the amount of water is not large, see the soil dry and then water, basin soil can be slightly dry and moist.

3. Plum Hi fertilizer is also resistant to barren, flowering without fertilization, flower Xie Shi after a nitrogen, phosphorus and potassium compound fertilizer to promote its rejuvenation, when the new shoot length 3-5 cm, growth is not good fertilizer, growth potential application of a NPK fertilizer New shoots no longer grow to about 18 centimeters; in late June and early July, spray 0.2% potassium dihydrogen phosphate solution once to promote flower bud differentiation. After the deciduous leaves emerged in the late autumn, NPK fertilizer or 0.2% potassium dihydrogen phosphate solution was applied to promote the development of flower buds.

4. Plum-positive plants should be well-ventilated and well-ventilated. Warm and cold, warm winter, need to be stimulated by low temperature, in order to spend leafy, winter minimum temperature of -12 °C above the place, do not need to enter the room overwinter, placed in sheltered sunny place. If it is to be open during the Spring Festival, it will be moved to a low-temperature greenhouse of 5-10°C for 20 days before the festival, and the sun will be set in the south-to-westward window sill. After flowering, it will be moved to a 0-5°C place for 1 month. The temperature is too high and it is easy to thank early.

5. Plum sprouts strong branching, resistant to pruning, easy to rejuvenate the old tree, flowers will be opened after the flowering branches short, leaving only 2-3 buds at the base, weak branches, diseased branches cut, cross branches, overlapping branches shears Drop a branch and cut it off. When the new shoot grows to 20 centimeters, it picks its heart and controls its growth, so that the nutrition concentrates on the differentiation of flower buds. By pruning not only the shape of the plant, but also ventilation and light transmission, it is not susceptible to pests and diseases.

6. Plum blossoms may have anthrax in the middle and late June when high temperatures and droughts occur. In July, the temperature is high and the humidity is high. Ventilation is not good. Powdery mildew may occur. Attention should be paid to both ventilation and light transmission. Diseases can be cut off and burned if found. Drop out and spray with thiophanate or carbendazim. Insect pests of plum blossoms are mainly locusts, which can be sprayed with 80% solution of dichlorvos 1500 times or buried with carbofuran in soil to kill the plants with poison. It is worth noting that plum blossoms are allergic to phosphorus-containing pesticides and should not be used with such pesticides. It is poorly tolerant to toxic gases such as sulfur dioxide, and in places with severe air pollution, it grows poorly and may even die.

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