Plum seedlings have good qualities such as hi light, drought resistance, cold resistance, etc. Their ability to resist diseases and pests is strong, and they have strong adaptability to the environment. In the cultivation process, the quality of the plum seedlings is often unfavorable due to poor planting, poor quality of plum seedlings, poor cultivation techniques, etc., resulting in uneven height growth, even bending, inversion, etc., which is not conducive to the cultivation of plum seedlings. Strengthening the screening and cultivation of plum seedlings and accelerating the cultivation of plum seedlings with high quality and strong seedlings is a key task in advancing the development of plum cultivation work. 1. The growth of plum seedlings under different seed treatments Three different methods were used to treat the seedlings of plum seedlings. The three methods were soaking seeds in 60-degree warm water, burying seeds in mixed sand for 40 days, mixing sand in three months, and treating the treated seeds in a unified manner. The same density was sown and cultivated in the same management manner. Finally, the growth condition of plum seedlings under different methods was observed. The seeds that were soaked in 60-degree warm water for one week were cultivated. Plum seedlings had a height of 4.1 cm, a ground diameter of 0.29 cm, and plum seedlings less than 10 cm in height accounted for 96% of all plum seedlings. The seeds were cultivated 40 days after mixing with sand. The height of the plum seedlings grown was 64 cm, the ground diameter was 0.58 cm, and the plum seedlings less than 10 cm in height accounted for 5% of all plum seedlings. Three months after the seeds were mixed and cultivated, the height of the plum seedlings grown was 58 cm, the base diameter was 0.5 cm, and plum seedlings less than 10 cm in height accounted for 1.7% of all plum seedlings. . It is known that the seedlings grown under different treatments have different growth conditions. The plum seedlings cultivated by mixed sand burying methods are higher in height than the seedlings cultivated by soaking seedlings. The value of the base diameter is greater, and the plum seedlings less than ten centimeters in height account for a smaller percentage of all plum seedlings. It can be seen that the mixed sand burying method is superior to the seed treated after the soaking method. Comparing the mixed sand-burial methods with different lengths of time, the plum seedlings cultivated in mixed sand for three months were found to have a slightly lower height and a slightly smaller base diameter than the 40-day seedlings cultivated in mixed sand. However, even so, the seedling height and ground diameter of plum seedlings cultivated in mixed sand for three months still meet the standard. The number of plum seedlings less than 10 cm in height was significantly less than that in the 40-day-old plum seedlings cultivated in mixed sand, which shows that the three-month-old seed treatment method in mixed sand is the best. 2. To cultivate high quality seedlings of plum tree by improving tillage and fertilization techniques 2.1 Effect of Tillage Depth on the Growth of Plum Seedlings When the experiment of ploughing on the quality of plum seedlings was conducted, the fertilization technique was used as a quantitative measure to change the depth of tillage. Through experiments, when the depth of ploughing was 25 cm, the plum seedlings had a seedling height of 46 cm, a ground diameter of 0.6 cm, and plum seedlings less than 10 cm in height accounted for all 13%. When the plough depth is 15 cm, the plum seedling height is 7.9 cm, the ground diameter is 0.4 cm, and plum seedlings less than 10 cm in height account for the entire 71%. It can be seen that, when the depth of ploughing is deeper, the seedling height and foundation diameter of plum seedlings are greater than those of the plum seedlings cultivated under shallow plowing conditions, and the proportion of plum seedlings less than 10 cm in height is also greatly reduced. The change is large. This shows that the impact of ploughing depth on the quality of plum seedlings is more profound, when the depth of ploughing is deeper, the varieties of plum seedlings are more excellent. 2.2 The effect of fertilizer on the growth of plum seedlings Through experiments, it can be seen that when fertilizing 3000 kg per acre field, plum seedlings are 50 cm in height, 0.72 cm in foundation diameter, and plum seedlings less than 10 cm in height account for 11% of the total. When fertilizing 1000 kg per acre, the plum seedling height is 12 cm, the ground diameter is 0.43 cm, and the percentage of plum seedlings less than 10 cm in height accounts for 65%. From the above data, it is known that when the amount of fertilizer is increased, the seedling height and foundation diameter of plum seedlings become larger, and the number of plum seedlings less than 10 cm in height is greatly reduced, and plum seedlings are more excellent. It can be seen that increasing the amount of fertilizer and deepening the depth of ploughing are more advantageous for the cultivation of excellent plum seedlings. Under such conditions, the plum seedlings not only have higher seedling height, but also have fewer seedlings less than 10 cm in height, and are more neatly grown. Effect of fertilization time on the growth of plum seedlings In the case of seed treatment, tillage depth, fertilization amount, and other management methods are the same, if fertilized on June 20, plum seedlings are 15 cm in height, 0.35 cm in foundation diameter and less than 10 cm in plum height. The seedlings account for the entire 38%. If fertilized on July 20th, plum seedlings are 4.8 cm high and the ground diameter is 0.24 cm. Plum seedlings less than 10 cm in height account for 82% of the total. It can be seen that earlier fertilization is relatively higher than late fertilization, plum seedlings grow at a higher height, the base diameter is larger, and the proportion of plum seedlings less than 10 cm in height is also less, so earlier fertilization for the growth of plum seedlings It has obvious advantages. In the process of growth and development, plum seedlings often appear to have varying levels of height, even bending, inversion, etc. It is understood that the use of mixed sand burying methods to treat seeds is more advantageous than that of warm water soaking methods. When the sand burying time is longer, the growth of plum seedlings is also better. In addition, the deeper plowing depth, more fertilization, and earlier fertilization period, the growth and development of plum seedlings is even better, mainly reflected in the higher seedling height, greater base diameter, and plum seedlings less than 10 cm in height. The proportion is even smaller. Therefore, in the cultivation of plum seedlings, we must make full use of these conditions and deepen the depth of ploughing according to actual conditions. Disclaimer: Some articles in this website have been transferred from the Internet. 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