Ensuring that all seedlings are sown in summer sesame seeds is an important measure to increase the yield of summer sesame seeds. However, during summer sowing season, the sesame seeds have high temperatures and the weather is changeable. In the case of drought, it is easy to “kill†the seedlings; if it encounters heavy rain, it is easy to “smother†and lack seedlings. It is recommended to use a double seeding method to achieve full seedlings of summer sesame seeds. Mechanized sowing, sowing 0.7 kg per acre, sowing with 24 rows of seeders, of which 12 rows of deep sowing, the depth of 3-4 cm, and the other 12 rows of shallow sowing, a depth of 0.2 cm, broadcast two times before sowing suppression. Artificial sowing, first in accordance with the conventional soil preparation fertilization ditch for rake, after the fine leveling of the ground mulberry, 0.6 kg per mu, after looting cover seeds (depth 2-3 cm) and then broadcast in the above 0.5 kg, and then in time Robbers beat the crackdown.
Double seeding method can achieve double insurance. In the case of drought and high temperature, although the surface seed buds are dying, the deep-seed seed buds can be successfully unearthed. In the case of heavy rain and waterlogging, the deep seed buds will suffocate, but the surface seed buds can be seedlings and seedlings can be maintained successfully. Whole seedlings lay a good foundation for the high yield of summer sesame seeds.
Refers to the trading of minerals in international trade. Minerals in international trade refer to the four major categories of iron ore, non-ferrous metal ores, rare-metal ores and non-metallic Mineral Products.
Mineral classification:
- According to the genesis and formation conditions of mineral resources, it is divided into endogenous minerals, exogenous minerals and metamorphic minerals.
- According to the mineral composition and structural characteristics, is divided into inorganic minerals and organic minerals;
- According to the output status of minerals, it is divided into solid minerals, liquid minerals and gas minerals.
- According to the characteristics of the mineral and its main purpose, it is divided into energy minerals, metal minerals, non-metallic minerals and water and gas minerals.
Our company mainly engaged in
- Ferroalloy ore
- Ferrosilicon
- Silicon manganese
- Graphite oil coke
- Silicon carbide
- Activated carbon.
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