Among the many factors that produce high yields of crops, water and fertilizer are two important factors. As the saying goes, "There is no income in the water, and more income is in the fertilizer." This shows that the timely irrigation of water to ensure the crop's demand for water is a limiting factor for crop growth. Similarly, the ability to properly fertilize and meet the nutrient needs of crops in a timely manner is the key to determining crop yield. It can be seen how important the two measures of fertilization and irrigation are in agricultural production.

There are generally two situations: one situation is that, when the funds are sufficient, the fertilizer can be increased to meet the nutrient requirements of the crops in a timely manner, and balanced fertilization can be implemented to achieve a comprehensive goal of high yield, high quality and high efficiency. Another situation is that when the funds are insufficient and the fertilizer cannot be purchased, the combination of fertilization and other stimulation measures will enable the limited fertilizer to maximize the yield. For example, water and fertilizer combination or NPK nutrient distribution. In doing so, even if the fertilizer is applied less, a better harvest can be obtained.

In the process of high yield of crops, there is a merit of irrigation, called the effect of water, and also a contribution of fertilization, called the effect of fertilizer, but many farmers do not know the two effects of water and fertilizer in the process of high yield of crops. In addition, there is a third effect produced by the combination of water and fertilizer, called the interaction effect. It can be seen that the combined yield increase effect of irrigation and fertilization is much greater than the sum of the effects of single irrigation or fertilization. Therefore, the current promotion of balanced fertilization technology and the promotion of fertilization and agricultural technology measures are undoubtedly very important for obtaining high yield of crops.

Expert tips:

1. In a certain range, the application of fertilizer can increase crop yield, but further improvement of production requires the cooperation of other measures.

2, the combination of fertilization and irrigation can make the limited fertilizer to maximize the benefits of production, the reason is the use of water and fertilizer combined.