The Latest Technical Guide to High-Yield Soybean Fertilization
Soybean is one of China's important food crops, with a long history of cultivation in China, an extremely wide growing range and area, and fertilization is crucial during planting. So how should soybean be fertilized? When is the best time to fertilize? What fertilizer should be applied? Come to QinNongNet to see the high-yield soybean fertilization techniques.
1. Apply sufficient base fertilizer
Applying sufficient base fertilizer when planting soybean is extremely important. Base fertilizer is used for seedling growth. Seedling growth needs nutrients, but the root system is weak and has not yet grown, so it cannot absorb what it needs for growth from the soil. Therefore, base fertilizer can enable seedlings to grow strong quickly and improve disease resistance. Base fertilizer should account for about 50%-60% of the total fertilizer. For base fertilizer, it is recommended to apply compound fertilizer and organic fertilizer. Generally, about 30kg of compound fertilizer is used per mu, and about 2000kg of decomposed organic fertilizer.
2. Skillfully apply seed fertilizer
Seed fertilizer is the fertilizer applied together with the seeds when sowing soybean, mainly to provide nutrients for seed germination so that seedlings emerge smoothly and safely. When applying seed fertilizer, be careful to avoid direct contact between seeds and fertilizer, so as to prevent the fertilizer from burning the seeds and young sprouts and affecting the seed germination rate. When fertilizing, first apply the fertilizer, cover it with a layer of fine soil, and then sow. In this way, after the seeds germinate, they can absorb nutrients and emerge quickly.
3. Apply topdressing at the right time
Base fertilizer and seed fertilizer are meant to meet the fertility needs of seedlings and the early to mid-growth stages, but by the later stage these nutrients have basically been used up. At this time, plants often suffer from nutrient deficiency, which affects yield and quality. Therefore, topdressing is needed to ensure nutrient supply and increase yield. Generally, topdressing is mainly done through root topdressing and foliar spraying. Root topdressing is done at the seedling stage and flowering stage, according to the plant's growth and flowering status, and the topdressing is mainly urea; foliar spraying is to supplement the trace elements lacking in the plant, especially trace elements such as boron, molybdenum, and zinc, generally at the pod-setting stage.
4. Fertilization methods
In the early stage, fertilization is mainly nitrogen fertilizer, supplemented by phosphate fertilizer. Nitrogen fertilizer can promote plant growth and can advance flowering and pod setting, while phosphate fertilizer can improve the plant's disease resistance, reduce the incidence rate, and make the disease milder when it occurs. By the pod-setting stage, phosphorus and potassium fertilizers should be the main focus, with less nitrogen fertilizer applied. At this time, the plant has already completed its development and does not need much nitrogen fertilizer, while pod setting has a greater demand for phosphorus and potassium fertilizers. In the later stage, an appropriate amount of organic fertilizer should be applied to provide trace elements and achieve the goal of high yield and excellent quality.
The above is the high-yield soybean fertilization technique brought to you by QinNongNet. Friends who grow soybean can refer to the above content according to actual conditions and fertilize reasonably and scientifically. I hope it can help you. For more related agricultural knowledge, please keep following QinNongNet.