Sugar sorghum, commonly known as sweet stem, is an edible plant. It tastes sweet and juicy. Many rural friends should eat it often when they were young, similar to sugar cane. Do you know how it grew up? Let's get to know each other.

Sowing and seedling raising

Sweet sorghum likes temperature and has the characteristics of drought resistance, waterlogging resistance and salinity tolerance. It can be planted in most parts of the world. It has no strict requirements on the growing environment and has strong adaptability to soil. Therefore, there is no need to select any plots for planting. Soaking seeds in clear water for one day before sowing can improve the germination rate of seeds. The germination rate is low, generally about 1.5kg/ mu, the rhizome is short, the ploughing ability is weak, and the sowing depth is 2-3cm. In addition, it has strong tillering ability. If it is not pulled out as soon as possible, the main stem and tillers will grow together and consume too much nutrients, which will not only prolong the growth period of the main stem, but also cause the main stem to become soft and late-mature, so it is necessary to pull out the tillers in time.

earth up

When the seedlings grow to 2-3 leaves, they should be cultivated for the first time, which can weed, resist drought and keep moisture. The depth of the second tillage is about10 cm; . The third ploughing time is 10- 15 days after the second ploughing. When the plant grows to about 70 cm, it can be enclosed, and the soil between rows can be cultivated at the root of sweet sorghum to promote the growth of column roots.

Fertilizer and water management

Before planting, base fertilizer should be applied first, and topdressing should be appropriate according to the growth trend during the growth period to facilitate sugar accumulation. It is not suitable to apply excessive nitrogen fertilizer in the middle and late growth period of sweet sorghum, so as to avoid the plant being greedy for green and late ripening, which will affect the sugar accumulation. Topdressing at jointing stage should be combined with the third ploughing, and urea 10- 15kg should be applied per mu. Not suitable for fertilizing the surface soil. Sweet sorghum needs less water at both ends and more water in the middle. Generally speaking, it needs to be watered 3-4 times during the whole growing period. The first time is jointing stage, topdressing. The second time is half a month after the first watering. The third pass is usually in the grouting stage. In the later period, we should pay attention to avoid low temperature, change the weather in time and avoid lodging.

Eliminate pests and diseases

Sweet sorghum has strong disease resistance. Generally, it does not get sick when planted, but its insect resistance is weak. In addition, according to the high sugar content of sweet sorghum, sweet sorghum is vulnerable to moths and aphids, and should be prevented as soon as possible. Deltamethrin can be used to control aphids, but attention should be paid to the concentration of pesticides to avoid pesticide damage. Spraying a few carbofuran on the heart leaves can control moths.

The above is the introduction of sweet sorghum planting techniques. I hope it helps you. If you want to know more about it, please pay attention to us.