How much is the orange seed per jin? How many are there in a jin? When is the best time to sow seeds?

The so-called fragrant orange, which includes all kinds of oranges, is a widely distributed and northerly one of the genus Citrus. Orange contains all kinds of nutrients, such as hesperidin, citric acid, pectin and vitamin C, which are beneficial to the human body. It has the effects of invigorating body and relieving thirst, soothing liver and regulating qi, dredging breast and so on. Therefore, orange is a popular fruit, and it is very promising to grow orange. So, how much is the orange seed per jin? How many are there in a jin? When is the best time to sow seeds?

At present, orange seeds are very expensive, generally more than 500 yuan per jin, but with varieties such as oranges gradually saturated, it is believed that orange seeds will return to a rational price in 2018!

There are about 2000 orange seeds per jin. Because the seeds are polyembryonic and may send out 2 or more buds, it is possible to produce more than the number of seedlings per jin of seeds. Of course, this is only possible in theory, but in practice it is subject to various conditions. generally, when sowing in winter, it can grow up to about 2000 seedlings per jin, while sowing in spring can produce 2500 seedlings per jin. This is because overwintering sowing may encounter low temperature chilling injury, affecting the emergence rate and seedling rate. If the overwintering sowing uses the greenhouse facility to raise the seedling, or the small arch greenhouse covers the seedling, it can improve the sowing quality and the emergence rate. The soil quality and management level of the nursery bed have a great impact on the emergence rate. Many nursery households will cause serious losses because of the seedbed and management problems, and the emergence rate may be less than 50%, or even lower.

Therefore, orange seeds should be sown at the right time. When is the best time to sow seeds?

Orange is a subtropical fruit tree, which is not resistant to severe cold, but it also has a certain degree of cold tolerance. It can be sown in spring, autumn and winter. Among them, it is best to sow in March in spring, sowing in October in autumn, and cover some grass on the seedlings to prevent freezing in winter. However, if sowing in summer, we should be careful. The high temperature and strong sunshine in summer can easily cause high temperature damage and affect the normal growth of seedlings.

Seed soaking and disinfection should be carried out before sowing. At the same time, soaking seeds for 2 hours can increase the germination rate and reduce seed loss. Fresh seeds can be sown in areas where the average temperature in winter is not low and the frost-free period is long. The fresh seeds can be sown after drying the surface moisture. Sowing fresh seeds in autumn can prolong the growth time and early grafting. Sowing density, 100-150 jin per mu.

Many farmers do not pay much attention to sparse sowing and uniform sowing, grab a handful and sow it casually, resulting in uneven density of seeds, which will not only affect the quality of seedlings, but also cause seed waste. In order to sow evenly, sowing should be weighed separately. For example, if a piece of land has a 10-car seedbed, the seeds can be divided into 10 equal parts before sowing, and one part can be sowed in each box, and one part can be subdivided into 2 equal parts, which can be sowed back and forth twice in the same seedling bed, so it is easy to spread evenly.