Fertilization and fertilization are also called water fertilization. That is, the quick-acting chemical fertilizer is dissolved in water and fertilized with water. From the perspective of fertilizer use, crop nutrient absorption mainly depends on the root system. The root hair zone about 1 cm from the root tip is the most active area for nutrient absorption. Therefore, flushing and fertilizing is most consistent with the principle of scientific fertilization. Nutrients can be absorbed by crops through mass flow and diffusion, and they can also prevent dry seeding. From the perspective of fertilization, fertigation applied fertilizer to crops and water, which is actually the application of water and fertilizer integration technology.
Then, with the development and promotion of fertilization technology, can fertigation completely replace compound fertilizer? According to experts, traditional compound fertilizers are generally used as base fertilizers and have a large amount. In this way, the crops may have excess nutrients in the early stage, but insufficient nutrients in the later stage, which is not conducive to crop growth. Therefore, this method of fertilization is actually unscientific. Although a small amount of topdressing is the best way to supplement crops with nutrients, the main problem is that the labor cost is too high, and economic crops or greenhouses can be used, and field cultivation is not practical. The development of drip irrigation and fertilization technology can make this way possible. Some people even say that if sufficient fertilizer can be ensured, it is not necessary to apply base fertilizer to crops, and the manufacturing process of red fertilizer is simpler and less costly than compound fertilizer.
At present, red fertilization is widely used in greenhouses and open-air vegetables, mainly used in the vigorous growth of vegetables, such as if the season of vegetables, fruit picking each time, cabbage cabbage, etc., effective, effective .
However, with the development of controlled-release fertilizer technology, the utilization of compound fertilizer has been greatly improved, and nutrients can be evenly released throughout the crop growth period. Although it can't be said that fertigation can completely replace compound fertilizers, fertigation products are gradually becoming hot words for dealers and farmers, and a large number of fertigation companies in China are gradually creating their own brands, and fertigation will enter a new stage of development.
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