The ginger's top dressing technique
After the wheat harvest had passed, most of the ginger had grown to three to four seedlings. It was commonly known as the ginger three-stranded fork period and should be applied to the ginger for the first time. According to the author's experience in grass-roots agrochemical services for many years, there are still many non-scientific or unreasonable sources of fertilization by Jiangnong friends.
1. Water immediately after topdressing urea, or apply urea immediately after watering. The purpose of ginger cultivator topdressing ginger is mainly to raise seedlings. However, most ginger farmers do not understand that after urea application, it takes 5 to 7 days to convert to ammonium nitrogen, and the plants can absorb and use them. This type of topdressing of urea not only results in serious loss of fertilizer, but may also lead to soil compaction and burning.
Second, spread fertilizer after surface watering. Many Jiang Nong plans to save time, when the ginger is applied to the ginger for the first time, the metropolis spreads or spreads compound fertilizers after watering. As the compound fertilizer is exposed on the surface of the earth, the volatilization and loss of the compound fertilizer are serious after melting. The utilization rate is only about 10%. It is a waste of fertiliser and soil. It is a very wrong method of fertilization.
Third, organic fertilizer, compound fertilizer and bean cake blended application. The price of ginger is good, and ginger farmers are also willing to invest in fertilizer. After the bean cake, organic fertilizer and compound fertilizer are mixed, they are used in large quantities. During the ginger three-pronged fork period, ginger seedlings have less roots, so they do not require much fertilizer. If too much fertilization is done, it will not only waste fertilizer, but also cause burning phenomenon. The top dressing in this period should be based on available nitrogen fertilizer. A few times, the most appropriate.
The purpose of top dressing ginger for the first time is very clear. It is unscientific and unreasonable to top up the application of urea, compound fertilizers and various fertilizers. At this time, topdressing should be performed with a high utilization rate (above 60% of the utilization rate) and high nitrogen flushing and fertilization with quick effect. For example, all-around fertilization (N:P:K=15:0:5) can be used for 15 kg per acre, 15 days for a single application, and continuous flushing for 2 or 3 times. It does not cost much and it works well.
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