Trace elements needed for soybean growth and their application
The normal growth of soybean needs some trace elements, among which molybdenum, boron, zinc, manganese and so on are more important. Molybdenum is a component of nitrogenase in soybean nodules and an indispensable component in the normal life activities of nitrogen-fixing bacteria. Boron is also very important in the life activities of soybeans, such as poor root development, poor nodule growth and loss of nitrogen fixation ability. Therefore, attention must also be paid to trace elements.
Can the trace elements needed for soybeans be satisfied from the soil? It depends on the abundance and deficiency of trace elements in the soil and the state of the environment. For example, low-lying or poorly drained soils are most prone to manganese deficiency, iron deficiency in calcareous soils, and molybdenum deficiency in acidic soils with PH less than 6.
In the application of micro-fertilizer, it is better to use seed coating agent when sowing, which is more economical.
If trace element deficiency is found in the seedling stage, foliar spraying (also known as extra-root topdressing) should be used, 0.1% molybdic acid solution should be sprayed before soybean flowering, and 40-50 kg liquid should be sprayed every 667 square meters.
- Prev
Control of Soybean Downy Mildew
Soybean downy mildew damages seedlings, leaves and seeds. When the first true leaf unfolds, chlorotic patches appear along both sides of the vein. The leaf surface of adult plant is round or irregular, the edge is not clear yellow-green star point, then turn brown, the back of the leaf has gray mold layer. The surface of diseased grains adhered to gray hyphal layer, containing a large number of pathogen ospores. The pathogen overwinters as ospores on seeds and diseased leaves and becomes the source of infection at the beginning of next year. The disease begins in the middle and late June every year, and the peak period is from July to August. The disease is often serious in rainy years. prevention and control
- Next
What nutrients do soybeans need for growth and development?
Soybean needs a large number of nutrients and many kinds. If the same yield is formed, soybean needs 4-5 times more nitrogen than cereal crops. The nutrients it needs are mainly nitrogen, phosphorus and potassium, followed by calcium, magnesium, sulfur, magnesium, boron, molybdenum, manganese, zinc and copper.
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi