Soybean is an important cash crop, and its growth period and harvest time are of great significance for agricultural production. The growth cycle of soybean includes seed germination, emergence, growth, flowering, pod-setting and grain drumming. In general, soybeans grow for 100-150 days, depending on factors such as variety, climate and soil.
In the soybean growth process, each stage has its own specific growth characteristics. In the seed germination and emergence stage, soybean seeds absorb water and swell, and generally take 7-10 days to emerge under suitable temperature and humidity conditions. After emergence, soybean enters the rapid growth period, which generally takes 15-20 days at the seedling stage, and the demand for nutrients and water gradually increases. As the plant grows, soybeans will bloom and set pods, which is a critical period that determines soybean yield, and the flowering and poding period is generally 30-40 days. During the podding stage, soybeans need sufficient nutrients and water to promote grain drumming and increase grain weight, and the general drum stage is generally 30-50 days. After the drum stage, it enters the ripening stage, which needs to be matured, which generally takes 20-30 days.
During the growth of soybean, environmental factors such as light, temperature, moisture, and soil nutrients have important effects on the growth and yield of soybean. For example, insufficient light can affect the photosynthesis and growth rate of soybeans; Temperatures that are too high or too low can affect the metabolism and growth of soybeans; Dry or excessively wet soil can affect the root development and water absorption capacity of soybeans; Lack of nutrients can lead to stunted soybean growth and reduced yields.
In order to improve the yield and quality of soybeans, farmers need to adopt a series of management measures. For example, reasonable dense planting can improve the photosynthesis and yield of the population; Timely irrigation can ensure the water needed for soybean growth; Scientific fertilization can provide the nutrients needed by soybeans; Pest control can reduce soybean losses.
In the process of soybean growth, the determination of harvest time is also very important. Generally, when the soybeans are full and golden or light brown in color, they can be harvested. Harvesting too early or too late can affect the quality and yield of soybeans. Harvesting too early and the kernels are not fully developed, which can lead to a decrease in yield and quality; If the harvest is too late, the kernels are prone to falling off and the quality deteriorates. Therefore, farmers need to determine the optimal harvest time based on factors such as variety characteristics and climatic conditions.
In summary, the growing cycle of soybeans is 100-150 days, but the specific growth period and harvest time depend on factors such as variety, climate and soil. In order to improve the yield and quality of soybeans, farmers need to adopt a series of management measures, including reasonable dense planting, timely irrigation, scientific fertilization, and pest control.
At the same time, the determination of harvest time is also very important, and it is necessary to determine the optimal harvest time according to factors such as variety characteristics and climatic conditions. Understanding the soybean growth cycle and management measures is of great significance for agricultural production, which can improve the yield and quality of soybeans and increase the economic benefits of farmers.