Q: What is the "one shot" and "one time" fertilization? A: A complete crop fertilization scheme consists of three fertilization methods: base fertilizer, seed fertilizer, and topdressing fertilizer. Farmers used to call basal fertilizer base fertilizer, seed fertilizer called mouth fertilizer, and top dressing called relay fertilizer. The so-called “one-shot shelling†and “one-time application†fertilization method is to apply all fertilizers as base fertilizers at one time, and no longer apply fertilizer. This is a fertilization method in some areas. Q: What are the benefits of "one shot" and "one shot" fertilization? Where does it apply? Answer: This method of fertilization is simple and can save labor. However, the application of this method is conditional. For example, in China's western regions where there is little or no rainfall, or where there are no irrigation conditions, this method can be used. Once there is rain, fertilizer can play a role. Q: What conditions are not suitable for the "one-shot" and "one-time application" fertilization? A: There are two situations that should be noticed in non-arid areas. In one case, crops with long growing seasons, such as winter wheat and spring maize, should not be fertilized. Taking winter wheat as an example, due to the large amount of nutrients in the base fertilizer, it is easy to make the wheat seedlings grow too prosperous before winter, and it will prematurely decline due to defertilization after jointing, which will affect the normal wheat spikes, so that the wheat yield is not high. Another situation is that in areas with moderate rainfall or irrigation conditions, it should not be a matter of saving time and adopting a "one-shot" and "one-time application" fertilization method. The reason is simple. This will cause the fertilizer to lose part of the nutrients with rainfall or irrigation, and it is difficult to fully realize the fertilizer effect. The correct approach is: in areas with high crop yields and high soil fertility, the fertilization model for basal fertilization plus top dressing should be implemented; in general, the mid-production fields and medium soil fertility can be used as a combination of basal fertilizer, seed fertilizer and top dressing. Q: Why do areas with irrigation conditions emphasize fertilizers in stages? A: Generally speaking, the maximum efficiency of top dressing during crop growth is generally during a period of vigorous crop growth. During this period, the crop needs to absorb many nutrients, and reasonable top dressing is the greatest need to regulate crop nutrients and soil supply. An important means of contradiction between nutrient deficiencies. One application of chemical nitrogen fertilizer should not be too much, so as not to adversely affect the growth of crops and cause loss of nutrients, it is advisable to pursue fertilizer by stages. Practice has proved that the effect of fertilizer application in stages is generally better than that of one-time top dressing. This is because staged topdressing can exert the relay function of nutrients to avoid the loss of nitrogen nutrients and reduce fertilizer efficiency, thus benefiting crop production. Of course, the number of fertilizers in stages is not as good as possible, depending on the specific seedlings and crop growth characteristics. Expert Tips: â— The application of "one-shot shelling" and "one-time application" fertilization is conditional. It is applicable to areas with little or no irrigation. â— In places where there are irrigation conditions, it is not appropriate for some farmers to insist on “one shot†and “one shotâ€. â— The effect of stage dressing is generally better than one-time dressing, but the number of top dressings is not as good as possible. (Author: Chen Lun Shou) Coronavirus Mask,Coronavirus Face Mask,Kn95 Approved Mask,Kn95 Approved Face Mask Dongguan City Risen Medical Products Co., Ltd. , https://www.risenppe.com